Implement validation and hierarchical get

NOTE: This review will require changes to the persistence.xml file in
other policy framework components.

This change brings in two changes:

1) Validation of the references betwen policies, policy types, and data
types

This change mans that additions to and changes to policies, policy
types, and data types must be structurally correct in the change coming
in and with whatever is already in the database

2) Hierarchical return of referenced entitites on policy types,
policies and data types.

When a policy, policy type, or data type is read from the database, the
entities referenced byt the returned policy, policy type, or data type
are returned as well.

Tests are amended for the stricter validation and structure.

Examples are corrected where they are incorrect.

Issue-ID: POLICY-1402
Change-Id: Ie6a4cb7ed336562338924079114df405f0ab889f
Signed-off-by: liamfallon <liam.fallon@est.tech>

34 files changed, 1022 insertions, 906 deletions

diff --git a/models-base/src/main/java/org/onap/policy/models/base/PfConceptGetterImpl.java b/models-base/src/main/java/org/onap/policy/models/base/PfConceptGetterImpl.java
index f07713a1e..c641a8035 100644
--- a/models-base/src/main/java/org/onap/policy/models/base/PfConceptGetterImpl.java
+++ b/models-base/src/main/java/org/onap/policy/models/base/PfConceptGetterImpl.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -102,7 +102,7 @@ public class PfConceptGetterImpl<C> implements PfConceptGetter<C> {
         }
 
         // The very fist key that could have this name
-        final PfConceptKey lowestArtifactKey = new PfConceptKey(conceptKeyName, "0.0.1");
+        final PfConceptKey lowestArtifactKey = new PfConceptKey(conceptKeyName, PfKey.NULL_KEY_VERSION);
         if (conceptKeyVersion != null) {
             lowestArtifactKey.setVersion(conceptKeyVersion);
         }
diff --git a/models-dao/src/main/java/org/onap/policy/models/dao/impl/DefaultPfDao.java b/models-dao/src/main/java/org/onap/policy/models/dao/impl/DefaultPfDao.java
index b3d72a3fd..6707e70a2 100644
--- a/models-dao/src/main/java/org/onap/policy/models/dao/impl/DefaultPfDao.java
+++ b/models-dao/src/main/java/org/onap/policy/models/dao/impl/DefaultPfDao.java
@@ -26,11 +26,13 @@ import java.util.Collections;
 import java.util.Date;
 import java.util.List;
 import java.util.Map;
+
 import javax.persistence.EntityManager;
 import javax.persistence.EntityManagerFactory;
 import javax.persistence.Persistence;
 import javax.persistence.TypedQuery;
 import javax.ws.rs.core.Response;
+
 import org.onap.policy.models.base.PfConcept;
 import org.onap.policy.models.base.PfConceptKey;
 import org.onap.policy.models.base.PfModelException;
@@ -411,6 +413,9 @@ public class DefaultPfDao implements PfDao {
         final EntityManager mg = getEntityManager();
         try {
             final T t = mg.find(someClass, key);
+            if (t != null) {
+                mg.refresh(t);
+            }
             return checkAndReturn(someClass, t);
         } finally {
             mg.close();
@@ -425,6 +430,9 @@ public class DefaultPfDao implements PfDao {
         final EntityManager mg = getEntityManager();
         try {
             final T t = mg.find(someClass, key);
+            if (t != null) {
+                mg.refresh(t);
+            }
             return checkAndReturn(someClass, t);
         } finally {
             mg.close();
@@ -439,6 +447,9 @@ public class DefaultPfDao implements PfDao {
         final EntityManager mg = getEntityManager();
         try {
             final T t = mg.find(someClass, key);
+            if (t != null) {
+                mg.refresh(t);
+            }
             return checkAndReturn(someClass, t);
         } finally {
             mg.close();
diff --git a/models-examples/src/main/resources/policytypes/onap.policies.Naming.yaml b/models-examples/src/main/resources/policytypes/onap.policies.Naming.yaml
index 8636b7980..c30cefe21 100644
--- a/models-examples/src/main/resources/policytypes/onap.policies.Naming.yaml
+++ b/models-examples/src/main/resources/policytypes/onap.policies.Naming.yaml
@@ -26,7 +26,7 @@ data_types:
                 metadata:
                     matchable: true
             naming-recipe:
-                type: String
+                type: string
                 required: true
             name-operation:
                 type: string
diff --git a/models-examples/src/main/resources/policytypes/onap.policies.controlloop.operational.Common.yaml b/models-examples/src/main/resources/policytypes/onap.policies.controlloop.operational.Common.yaml
index 2dc6ba83b..0dbe7e41a 100644
--- a/models-examples/src/main/resources/policytypes/onap.policies.controlloop.operational.Common.yaml
+++ b/models-examples/src/main/resources/policytypes/onap.policies.controlloop.operational.Common.yaml
@@ -6,26 +6,26 @@ policy_types:
         description: Operational Policy for Control Loop execution
         properties:
             id:
-                type: String
+                type: string
                 description: The unique control loop id.
                 required: true
             timeout:
-                type: Integer
+                type: integer
                 description: |
                     Overall timeout for executing all the operations. This timeout should equal or exceed the total
                     timeout for each operation listed.
                 required: true
             abatement:
-                type: Boolean
+                type: boolean
                 description: Whether an abatement event message will be expected for the control loop from DCAE.
                 required: true
                 default: false
             trigger:
-                type: String
+                type: string
                 description: Initial operation to execute upon receiving an Onset event message for the Control Loop.
                 required: true
             operations:
-                type: List
+                type: list
                 description: List of operations to be performed when Control Loop is triggered.
                 required: true
                 entry_schema:
@@ -38,7 +38,7 @@ policy_types:
         description: Operational policies for Drools PDP
         properties:
             controllerName:
-                type: String
+                type: string
                 description: Drools controller properties
                 required: false
 
@@ -49,11 +49,11 @@ data_types:
         description: Captures information of an operational failure performed for control loop
         properties:
             messages:
-                type: String
+                type: string
                 description: error message
                 required: true
             category:
-                type: String
+                type: string
                 description: |
                     The category the error occurred in. Whether this is a general error from the actor, or the operation
                     timed out, retries were exhausted in trying to execute the operation, a guard policy prevented the
@@ -66,13 +66,13 @@ data_types:
         description: Definition for a entity in A&AI to perform a control loop operation on
         properties:
             targetType:
-                type: String
+                type: string
                 description: Category for the target type
                 required: true
                 constraints:
                 - valid_values: [VNF, VM, VFMODULE, PNF]
             entityIds:
-                type: Map
+                type: map
                 description: |
                     Map of values that identify the resource. If none are provided, it is assumed that the
                     entity that generated the ONSET event will be the target.
@@ -83,36 +83,36 @@ data_types:
         description: An actor/operation/target definition
         properties:
             actor:
-                type: String
+                type: string
                 description: The actor performing the operation.
                 required: true
             operation:
-                type: String
+                type: string
                 description: The operation the actor is performing.
                 required: true
             target:
-                type: String
+                type: string
                 description: The resource the operation should be performed on.
                 required: true
                 metadata:
                     clamp_possible_values: <string:see clamp project for syntax>
             payload:
-                type: Map
+                type: map
                 description: Name/value pairs of payload information passed by Policy to the actor
                 required: false
                 entry_schema:
-                    type: String
+                    type: string
 
     onap.datatype.controlloop.Operation:
         derived_from: tosca.datatypes.Root
         description: An operation supported by an actor
         properties:
             id:
-                type: String
+                type: string
                 description: Unique identifier for the operation
                 required: true
             description:
-                type: String
+                type: string
                 description: A user-friendly description of the intent for the operation
                 required: false
             operation:
@@ -122,41 +122,41 @@ data_types:
                 metadata:
                     clamp_possible_values: <string:see clamp project for syntax>
             timeout:
-                type: Integer
+                type: integer
                 description: The amount of time for the actor to perform the operation.
                 required: true
             retries:
-                type: Integer
+                type: integer
                 description: The number of retries the actor should attempt to perform the operation.
                 required: true
                 default: 0
             success:
-                type: String
+                type: string
                 description: Points to the operation to invoke on success. A value of "final_success" indicates and end to the operation.
                 required: false
                 default: final_success
             failure:
-                type: String
+                type: string
                 description: Points to the operation to invoke on Actor operation failure.
                 required: false
                 default: final_failure
             failure_timeout:
-                type: String
+                type: string
                 description: Points to the operation to invoke when the time out for the operation occurs.
                 required: false
                 default: final_failure_timeout
             failure_retries:
-                type: String
+                type: string
                 description: Points to the operation to invoke when the current operation has exceeded its max retries.
                 required: false
                 default: final_failure_retries
             failure_exception:
-                type: String
+                type: string
                 description: Points to the operation to invoke when the current operation causes an exception.
                 required: false
                 default: final_failure_exception
             failure_guard:
-                type: String
+                type: string
                 description: Points to the operation to invoke when the current operation is blocked due to guard policy enforcement.
                 required: false
                 default: final_failure_guard
diff --git a/models-examples/src/main/resources/policytypes/onap.policies.controlloop.operational.common.Apex.yaml b/models-examples/src/main/resources/policytypes/onap.policies.controlloop.operational.common.Apex.yaml
index dba656769..e1555e8ed 100644
--- a/models-examples/src/main/resources/policytypes/onap.policies.controlloop.operational.common.Apex.yaml
+++ b/models-examples/src/main/resources/policytypes/onap.policies.controlloop.operational.common.Apex.yaml
@@ -6,18 +6,18 @@ policy_types:
         description: Operational policies for Apex PDP
         properties:
             engineServiceParameters:
-                type: String
+                type: string
                 description: The engine parameters like name, instanceCount, policy implementation, parameters etc.
                 required: true
             eventInputParameters:
-                type: String
+                type: string
                 description: The event input parameters.
                 required: true
             eventOutputParameters:
-                type: String
+                type: string
                 description: The event output parameters.
                 required: true
             javaProperties:
-                type: String
+                type: string
                 description: Name/value pairs of properties to be set for APEX if needed.
                 required: false
diff --git a/models-examples/src/main/resources/policytypes/onap.policies.native.Apex.yaml b/models-examples/src/main/resources/policytypes/onap.policies.native.Apex.yaml
index 1a394cd7d..8c780f64a 100644
--- a/models-examples/src/main/resources/policytypes/onap.policies.native.Apex.yaml
+++ b/models-examples/src/main/resources/policytypes/onap.policies.native.Apex.yaml
@@ -43,15 +43,15 @@ data_types:
                 required: false
                 default: "1.0.0"
             id:
-                type: int
+                type: integer
                 description: Specifies the engine id
                 required: true
             instance_count:
-                type: int
+                type: integer
                 description: Specifies the number of engine threads that should be run
                 required: true
             deployment_port:
-                type: int
+                type: integer
                 description: Specifies the port to connect to for engine administration
                 required: false
                 default: 1
@@ -59,17 +59,14 @@ data_types:
                 type: string
                 description: The name of the file from which to read the APEX policy model
                 required: false
-                default: ""
             policy_type_impl:
                 type: string
                 description: The policy type implementation from which to read the APEX policy model
                 required: false
-                default: ""
             periodic_event_period:
                 type: string
                 description: The time interval in milliseconds for the periodic scanning event, 0 means don't scan
                 required: false
-                default: 0
             engine:
                 type: onap.datatypes.native.apex.engineservice.Engine
                 description: The parameters for all engines in the APEX engine service
@@ -98,7 +95,7 @@ data_types:
                 description: Specifies a filter as a regular expression, events that do not match the filter are dropped, the default is to let all events through
                 required: false
             synchronous_mode:
-                type: bool
+                type: boolean
                 description: Specifies the event handler is syncronous (receive event and send response)
                 required: false
                 default: false
@@ -106,14 +103,12 @@ data_types:
                 type: string
                 description: The peer event handler (output for input or input for output) of this event handler in synchronous mode, this parameter is mandatory if the event handler is in synchronous mode
                 required: false
-                default: ""
             synchronous_timeout:
-                type: int
+                type: integer
                 description: The timeout in milliseconds for responses to be issued by APEX torequests, this parameter is mandatory if the event handler is in synchronous mode
                 required: false
-                default: ""
             requestor_mode:
-                type: bool
+                type: boolean
                 description: Specifies the event handler is in requestor mode (send event and wait for response mode)
                 required: false
                 default: false
@@ -121,12 +116,10 @@ data_types:
                 type: string
                 description: The peer event handler (output for input or input for output) of this event handler in requestor mode, this parameter is mandatory if the event handler is in requestor mode
                 required: false
-                default: ""
             requestor_timeout:
-                type: int
+                type: integer
                 description: The timeout in milliseconds for wait for responses to requests, this parameter is mandatory if the event handler is in requestor mode
                 required: false
-                default: ""
     onap.datatypes.native.apex.CarrierTechnology:
         derived_from: tosca.datatypes.Root
         properties:
@@ -149,7 +142,7 @@ data_types:
                 type: string
                 description: The class name of the class that overrides default handling of the event protocol for this carrier technology, defaults to the supplied event protocol class
                 required: false
-    onap.datatypes.native.apex.Environmental:
+    onap.datatypes.native.apex.Environment:
         derived_from: tosca.datatypes.Root
         properties:
             name:
@@ -188,7 +181,7 @@ data_types:
                 entry_schema:
                     type: onap.datatypes.native.apex.Plugin
             locking:
-                type: onap.datatypes.native.apex.plugin
+                type: onap.datatypes.native.apex.Plugin
                 description: The plugin to be used for locking context in and between APEX PDPs at runtime
                 required: false
             persistence:
diff --git a/models-examples/src/main/resources/policytypes/onap.policies.native.Xacml.yaml b/models-examples/src/main/resources/policytypes/onap.policies.native.Xacml.yaml
index d065f6187..8ed45a010 100644
--- a/models-examples/src/main/resources/policytypes/onap.policies.native.Xacml.yaml
+++ b/models-examples/src/main/resources/policytypes/onap.policies.native.Xacml.yaml
@@ -10,7 +10,7 @@ policy_types:
         version: 1.0.0
         properties:
             policy:
-                type: String
+                type: string
                 required: true
                 description: The XML XACML 3.0 PolicySet or Policy
                 metadata:
diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/AuthorativeToscaProviderReferenceTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/AuthorativeToscaProviderReferenceTest.java
deleted file mode 100644
index 5f904dfb4..000000000
--- a/models-provider/src/test/java/org/onap/policy/models/provider/impl/AuthorativeToscaProviderReferenceTest.java
+++ /dev/null
@@ -1,181 +0,0 @@
-/*-
- * ============LICENSE_START=======================================================
- *  Copyright (C) 2019-2020 Nordix Foundation.
- *  Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
- * ================================================================================
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * SPDX-License-Identifier: Apache-2.0
- * ============LICENSE_END=========================================================
- */
-
-package org.onap.policy.models.provider.impl;
-
-import static org.junit.Assert.assertEquals;
-
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Properties;
-
-import org.eclipse.persistence.config.PersistenceUnitProperties;
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.onap.policy.common.utils.coder.CoderException;
-import org.onap.policy.common.utils.coder.StandardCoder;
-import org.onap.policy.common.utils.resources.ResourceUtils;
-import org.onap.policy.models.base.PfModelException;
-import org.onap.policy.models.dao.DaoParameters;
-import org.onap.policy.models.dao.PfDao;
-import org.onap.policy.models.dao.PfDaoFactory;
-import org.onap.policy.models.dao.impl.DefaultPfDao;
-import org.onap.policy.models.tosca.authorative.concepts.ToscaEntityKey;
-import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
-import org.onap.policy.models.tosca.authorative.provider.AuthorativeToscaProvider;
-import org.yaml.snakeyaml.Yaml;
-
-/**
- * Test of the {@link AuthorativeToscaProvider} class.
- *
- * @author Liam Fallon (liam.fallon@est.tech)
- */
-public class AuthorativeToscaProviderReferenceTest {
-    private static PfDao pfDao;
-    private static final StandardCoder coder = new StandardCoder();
-
-    // @formatter:off
-    private static final String[] EXAMPLE_POLICY_TYPES = {
-        "onap.policies.controlloop.guard.Blacklist#1.0.0"
-                + "#policytypes/onap.policies.controlloop.guard.Blacklist.yaml",
-        "onap.policies.controlloop.guard.coordination.FirstBlocksSecond#1.0.0"
-                + "#policytypes/onap.policies.controlloop.guard.coordination.FirstBlocksSecond.yaml",
-        "onap.policies.controlloop.guard.FrequencyLimiter#1.0.0"
-                + "#policytypes/onap.policies.controlloop.guard.FrequencyLimiter.yaml",
-        "onap.policies.controlloop.guard.MinMax#1.0.0"
-                + "#policytypes/onap.policies.controlloop.guard.MinMax.yaml",
-        "onap.policies.controlloop.operational.Common#1.0.0"
-                + "#policytypes/onap.policies.controlloop.operational.Common.yaml",
-        "onap.policies.controlloop.Operational#1.0.0"
-                + "#policytypes/onap.policies.controlloop.Operational.yaml",
-        "onap.policies.drools.Controller#1.0.0"
-                + "#policytypes/onap.policies.drools.Controller.yaml",
-        "onap.policies.monitoring.cdap.tca.hi.lo.app#1.0.0"
-                + "#policytypes/onap.policies.monitoring.cdap.tca.hi.lo.app.yaml",
-        "onap.policies.monitoring.dcaegen2.collectors.datafile.datafile-app-server#1.0.0"
-                + "#policytypes/onap.policies.monitoring.dcaegen2.collectors.datafile.datafile-app-server.yaml",
-        "onap.policies.Naming#1.0.0"
-                + "#policytypes/onap.policies.Naming.yaml",
-        "onap.policies.native.Apex#1.0.0"
-                + "#policytypes/onap.policies.native.Apex.yaml",
-        "onap.policies.native.Drools#1.0.0"
-                + "#policytypes/onap.policies.native.Drools.yaml",
-        "onap.policies.native.Xacml#1.0.0"
-                + "#policytypes/onap.policies.native.Xacml.yaml",
-        "onap.policies.optimization.resource.AffinityPolicy#1.0.0"
-                + "#policytypes/onap.policies.optimization.resource.AffinityPolicy.yaml",
-        "onap.policies.optimization.resource.DistancePolicy#1.0.0"
-                + "#policytypes/onap.policies.optimization.resource.DistancePolicy.yaml",
-        "onap.policies.optimization.resource.HpaPolicy#1.0.0"
-                + "#policytypes/onap.policies.optimization.resource.HpaPolicy.yaml",
-        "onap.policies.optimization.resource.OptimizationPolicy#1.0.0"
-                + "#policytypes/onap.policies.optimization.resource.OptimizationPolicy.yaml",
-        "onap.policies.optimization.resource.PciPolicy#1.0.0"
-                + "#policytypes/onap.policies.optimization.resource.PciPolicy.yaml",
-        "onap.policies.optimization.resource.Vim_fit#1.0.0"
-                + "#policytypes/onap.policies.optimization.resource.Vim_fit.yaml",
-        "onap.policies.optimization.resource.VnfPolicy#1.0.0"
-                + "#policytypes/onap.policies.optimization.resource.VnfPolicy.yaml",
-        "onap.policies.optimization.Resource#1.0.0"
-                + "#policytypes/onap.policies.optimization.Resource.yaml",
-        "onap.policies.optimization.service.QueryPolicy#1.0.0"
-                + "#policytypes/onap.policies.optimization.service.QueryPolicy.yaml",
-        "onap.policies.optimization.service.SubscriberPolicy#1.0.0"
-                + "#policytypes/onap.policies.optimization.service.SubscriberPolicy.yaml",
-        "onap.policies.optimization.Service#1.0.0"
-                + "#policytypes/onap.policies.optimization.Service.yaml",
-        "onap.policies.Optimization#1.0.0"
-                + "#policytypes/onap.policies.Optimization.yaml"};
-    // @formatter:on
-
-    private static final Map<ToscaEntityKey, ToscaServiceTemplate> policyTypeMap = new LinkedHashMap<>();
-
-    /**
-     * Set up the DAO towards the database.
-     *
-     * @throws Exception on database errors
-     */
-    @BeforeClass
-    public static void beforeSetupDao() throws Exception {
-        final DaoParameters daoParameters = new DaoParameters();
-        daoParameters.setPluginClass(DefaultPfDao.class.getName());
-
-        daoParameters.setPersistenceUnit("ToscaConceptTest");
-
-        Properties jdbcProperties = new Properties();
-        jdbcProperties.setProperty(PersistenceUnitProperties.JDBC_USER, "policy");
-        jdbcProperties.setProperty(PersistenceUnitProperties.JDBC_PASSWORD, "P01icY");
-
-        // H2, use "org.mariadb.jdbc.Driver" and "jdbc:mariadb://localhost:3306/policy" for locally installed MariaDB
-        jdbcProperties.setProperty(PersistenceUnitProperties.JDBC_DRIVER, "org.h2.Driver");
-        jdbcProperties.setProperty(PersistenceUnitProperties.JDBC_URL, "jdbc:h2:mem:testdb");
-
-        daoParameters.setJdbcProperties(jdbcProperties);
-
-        pfDao = new PfDaoFactory().createPfDao(daoParameters);
-        pfDao.init(daoParameters);
-    }
-
-    /**
-     * Populate the database.
-     *
-     * @throws PfModelException on database exceptions
-     * @throws CoderException on JSON encoding/decoding errors
-     */
-    @BeforeClass
-    public static void beforeFillDatabase() throws PfModelException, CoderException {
-        for (String policyTypeDataString : EXAMPLE_POLICY_TYPES) {
-            String[] policyTypeDataArray = policyTypeDataString.split("#");
-            String policyTypeYamlDefinition = ResourceUtils.getResourceAsString(policyTypeDataArray[2]);
-
-            Object yamlObject = new Yaml().load(policyTypeYamlDefinition);
-            String policyTypeJsonDefinition = coder.encode(yamlObject);
-
-            ToscaServiceTemplate serviceTemplate = coder.decode(policyTypeJsonDefinition, ToscaServiceTemplate.class);
-            policyTypeMap.put(new ToscaEntityKey(policyTypeDataArray[0], policyTypeDataArray[1]), serviceTemplate);
-            new AuthorativeToscaProvider().createPolicyTypes(pfDao, serviceTemplate);
-        }
-    }
-
-    @AfterClass
-    public static void afterTeardown() {
-        pfDao.close();
-    }
-
-    @Test
-    public void testPolicyTypeRead() throws PfModelException, CoderException {
-        for (Entry<ToscaEntityKey, ToscaServiceTemplate> policyTypeMapEntry : policyTypeMap.entrySet()) {
-            ToscaServiceTemplate serviceTemplate = new AuthorativeToscaProvider().getPolicyTypes(pfDao,
-                    policyTypeMapEntry.getKey().getName(), policyTypeMapEntry.getKey().getVersion());
-
-            assertEquals(1, serviceTemplate.getPolicyTypes().size());
-
-            String originalJson = coder.encode(policyTypeMapEntry.getValue());
-            String databaseJson = coder.encode(serviceTemplate);
-
-            // TODO: This test has no chance of passing yet but must eventually pass to prove that the policy types
-            // TODO: that were retrieved are the same as the policy types that were stored
-            // assertEquals(originalJson, databaseJson);
-        }
-    }
-}
diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/DatabasePolicyModelsProviderTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/DatabasePolicyModelsProviderTest.java
index fd566a52f..aa6802a5a 100644
--- a/models-provider/src/test/java/org/onap/policy/models/provider/impl/DatabasePolicyModelsProviderTest.java
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/DatabasePolicyModelsProviderTest.java
@@ -25,14 +25,15 @@ import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
 
 import java.util.ArrayList;
 import java.util.Base64;
 import java.util.Date;
 import java.util.List;
+
 import org.junit.Before;
 import org.junit.Test;
+import org.onap.policy.models.base.PfModelException;
 import org.onap.policy.models.pdp.concepts.Pdp;
 import org.onap.policy.models.pdp.concepts.PdpGroup;
 import org.onap.policy.models.pdp.concepts.PdpGroupFilter;
@@ -49,8 +50,6 @@ import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeIdentifi
 import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
 import org.onap.policy.models.tosca.legacy.concepts.LegacyGuardPolicyInput;
 import org.onap.policy.models.tosca.legacy.concepts.LegacyOperationalPolicy;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * Test the database models provider implementation.
@@ -82,8 +81,6 @@ public class DatabasePolicyModelsProviderTest {
 
     private static final String ORDER = "DESC";
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(DatabasePolicyModelsProviderTest.class);
-
     PolicyModelsProviderParameters parameters;
 
     /**
@@ -139,210 +136,210 @@ public class DatabasePolicyModelsProviderTest {
     @Test
     public void testProviderMethodsNull() throws Exception {
 
-        try (PolicyModelsProvider databaseProvider =
-                new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters)) {
+        PolicyModelsProvider databaseProvider =
+                new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getFilteredPolicyTypes(null);
-            }).hasMessageMatching(FILTER_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.getFilteredPolicyTypes(null);
+        }).hasMessageMatching(FILTER_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getFilteredPolicyTypeList(null);
-            }).hasMessageMatching(FILTER_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.getFilteredPolicyTypeList(null);
+        }).hasMessageMatching(FILTER_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.createPolicyTypes(null);
-            }).hasMessageMatching(TEMPLATE_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.createPolicyTypes(null);
+        }).hasMessageMatching(TEMPLATE_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePolicyTypes(null);
-            }).hasMessageMatching(TEMPLATE_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePolicyTypes(null);
+        }).hasMessageMatching(TEMPLATE_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deletePolicyType(null, null);
-            }).hasMessageMatching(NAME_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.deletePolicyType(null, null);
+        }).hasMessageMatching(NAME_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deletePolicyType("aaa", null);
-            }).hasMessageMatching("^version is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.deletePolicyType("aaa", null);
+        }).hasMessageMatching("^version is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deletePolicyType(null, "aaa");
-            }).hasMessageMatching(NAME_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.deletePolicyType(null, "aaa");
+        }).hasMessageMatching(NAME_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getFilteredPolicies(null);
-            }).hasMessageMatching(FILTER_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.getFilteredPolicies(null);
+        }).hasMessageMatching(FILTER_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getFilteredPolicyList(null);
-            }).hasMessageMatching(FILTER_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.getFilteredPolicyList(null);
+        }).hasMessageMatching(FILTER_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.createPolicies(null);
-            }).hasMessageMatching(TEMPLATE_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.createPolicies(null);
+        }).hasMessageMatching(TEMPLATE_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePolicies(null);
-            }).hasMessageMatching(TEMPLATE_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePolicies(null);
+        }).hasMessageMatching(TEMPLATE_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deletePolicy(null, null);
-            }).hasMessageMatching(NAME_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.deletePolicy(null, null);
+        }).hasMessageMatching(NAME_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deletePolicy(null, "aaa");
-            }).hasMessageMatching(NAME_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.deletePolicy(null, "aaa");
+        }).hasMessageMatching(NAME_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deletePolicy("aaa", null);
-            }).hasMessageMatching("^version is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.deletePolicy("aaa", null);
+        }).hasMessageMatching("^version is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getOperationalPolicy(null, null);
-            }).hasMessageMatching(POLICY_ID_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.getOperationalPolicy(null, null);
+        }).hasMessageMatching(POLICY_ID_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getOperationalPolicy(null, "");
-            }).hasMessageMatching(POLICY_ID_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.getOperationalPolicy(null, "");
+        }).hasMessageMatching(POLICY_ID_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getOperationalPolicy("", null);
-            }).hasMessage("no policy found for policy: :null");
+        assertThatThrownBy(() -> {
+            databaseProvider.getOperationalPolicy("", null);
+        }).hasMessage("no policy found for policy: :null");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.createOperationalPolicy(null);
-            }).hasMessageMatching("^legacyOperationalPolicy is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.createOperationalPolicy(null);
+        }).hasMessageMatching("^legacyOperationalPolicy is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updateOperationalPolicy(null);
-            }).hasMessageMatching("^legacyOperationalPolicy is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.updateOperationalPolicy(null);
+        }).hasMessageMatching("^legacyOperationalPolicy is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deleteOperationalPolicy(null, null);
-            }).hasMessageMatching(POLICY_ID_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.deleteOperationalPolicy(null, null);
+        }).hasMessageMatching(POLICY_ID_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deleteOperationalPolicy(null, "");
-            }).hasMessageMatching(POLICY_ID_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.deleteOperationalPolicy(null, "");
+        }).hasMessageMatching(POLICY_ID_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deleteOperationalPolicy("", null);
-            }).hasMessageMatching("^policyVersion is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.deleteOperationalPolicy("", null);
+        }).hasMessageMatching("^policyVersion is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getGuardPolicy(null, null);
-            }).hasMessageMatching(POLICY_ID_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.getGuardPolicy(null, null);
+        }).hasMessageMatching(POLICY_ID_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getGuardPolicy(null, "");
-            }).hasMessageMatching(POLICY_ID_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.getGuardPolicy(null, "");
+        }).hasMessageMatching(POLICY_ID_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getGuardPolicy("", null);
-            }).hasMessage("no policy found for policy: :null");
+        assertThatThrownBy(() -> {
+            databaseProvider.getGuardPolicy("", null);
+        }).hasMessage("no policy found for policy: :null");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.createGuardPolicy(null);
-            }).hasMessageMatching("^legacyGuardPolicy is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.createGuardPolicy(null);
+        }).hasMessageMatching("^legacyGuardPolicy is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updateGuardPolicy(null);
-            }).hasMessageMatching("^legacyGuardPolicy is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.updateGuardPolicy(null);
+        }).hasMessageMatching("^legacyGuardPolicy is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deleteGuardPolicy(null, null);
-            }).hasMessageMatching(POLICY_ID_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.deleteGuardPolicy(null, null);
+        }).hasMessageMatching(POLICY_ID_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deleteGuardPolicy(null, "");
-            }).hasMessageMatching(POLICY_ID_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.deleteGuardPolicy(null, "");
+        }).hasMessageMatching(POLICY_ID_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deleteGuardPolicy("", null);
-            }).hasMessageMatching("^policyVersion is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.deleteGuardPolicy("", null);
+        }).hasMessageMatching("^policyVersion is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getFilteredPdpGroups(null);
-            }).hasMessageMatching(FILTER_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.getFilteredPdpGroups(null);
+        }).hasMessageMatching(FILTER_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.createPdpGroups(null);
-            }).hasMessageMatching("^pdpGroups is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.createPdpGroups(null);
+        }).hasMessageMatching("^pdpGroups is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdpGroups(null);
-            }).hasMessageMatching("^pdpGroups is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdpGroups(null);
+        }).hasMessageMatching("^pdpGroups is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdpSubGroup(null, null);
-            }).hasMessageMatching(GROUP_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdpSubGroup(null, null);
+        }).hasMessageMatching(GROUP_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdpSubGroup(null, new PdpSubGroup());
-            }).hasMessageMatching(GROUP_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdpSubGroup(null, new PdpSubGroup());
+        }).hasMessageMatching(GROUP_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdpSubGroup(NAME, null);
-            }).hasMessageMatching(SUBGROUP_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdpSubGroup(NAME, null);
+        }).hasMessageMatching(SUBGROUP_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdpSubGroup(NAME, new PdpSubGroup());
-            }).hasMessage("parameter \"localName\" is null");
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdpSubGroup(NAME, new PdpSubGroup());
+        }).hasMessage("parameter \"localName\" is null");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdp(null, null, null);
-            }).hasMessageMatching(GROUP_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdp(null, null, null);
+        }).hasMessageMatching(GROUP_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdp(null, null, new Pdp());
-            }).hasMessageMatching(GROUP_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdp(null, null, new Pdp());
+        }).hasMessageMatching(GROUP_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdp(null, "sub", null);
-            }).hasMessageMatching(GROUP_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdp(null, "sub", null);
+        }).hasMessageMatching(GROUP_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdp(null, "sub", new Pdp());
-            }).hasMessageMatching(GROUP_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdp(null, "sub", new Pdp());
+        }).hasMessageMatching(GROUP_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdp(NAME, null, null);
-            }).hasMessageMatching(SUBGROUP_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdp(NAME, null, null);
+        }).hasMessageMatching(SUBGROUP_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdp(NAME, null, new Pdp());
-            }).hasMessageMatching(SUBGROUP_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdp(NAME, null, new Pdp());
+        }).hasMessageMatching(SUBGROUP_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdp(NAME, "sub", null);
-            }).hasMessageMatching("^pdp is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdp(NAME, "sub", null);
+        }).hasMessageMatching("^pdp is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdp(NAME, "sub", new Pdp());
-            }).hasMessage("parameter \"localName\" is null");
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdp(NAME, "sub", new Pdp());
+        }).hasMessage("parameter \"localName\" is null");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deletePdpGroup(null);
-            }).hasMessageMatching(NAME_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.deletePdpGroup(null);
+        }).hasMessageMatching(NAME_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.getFilteredPdpStatistics(NAME, null, "sub", TIMESTAMP, TIMESTAMP, ORDER, 0);
-            }).hasMessageMatching(GROUP_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.getFilteredPdpStatistics(NAME, null, "sub", TIMESTAMP, TIMESTAMP, ORDER, 0);
+        }).hasMessageMatching(GROUP_IS_NULL);
 
-            assertThatThrownBy(() -> {
-                databaseProvider.createPdpStatistics(null);
-            }).hasMessageMatching("^pdpStatisticsList is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.createPdpStatistics(null);
+        }).hasMessageMatching("^pdpStatisticsList is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePdpStatistics(null);
-            }).hasMessageMatching("^pdpStatisticsList is marked .*on.*ull but is null$");
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePdpStatistics(null);
+        }).hasMessageMatching("^pdpStatisticsList is marked .*on.*ull but is null$");
 
-            assertThatThrownBy(() -> {
-                databaseProvider.deletePdpStatistics(null, TIMESTAMP);
-            }).hasMessageMatching(NAME_IS_NULL);
+        assertThatThrownBy(() -> {
+            databaseProvider.deletePdpStatistics(null, TIMESTAMP);
+        }).hasMessageMatching(NAME_IS_NULL);
 
-        }
+        databaseProvider.close();
     }
 
     @Test
@@ -358,181 +355,185 @@ public class DatabasePolicyModelsProviderTest {
     }
 
     @Test
-    public void testProviderMethods() {
-        try (PolicyModelsProvider databaseProvider =
-                new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters)) {
-
-            assertTrue(databaseProvider.getPolicyTypes(NAME, VERSION_100).getPolicyTypes().isEmpty());
-            assertTrue(databaseProvider.getPolicyTypeList(NAME, VERSION_100).isEmpty());
-            assertEquals(0, databaseProvider.getFilteredPolicyTypes(ToscaPolicyTypeFilter.builder().build())
-                    .getPolicyTypes().size());
-            assertEquals(0, databaseProvider.getFilteredPolicyTypeList(ToscaPolicyTypeFilter.builder().build()).size());
-
-            assertThatThrownBy(() -> {
-                databaseProvider.createPolicyTypes(new ToscaServiceTemplate());
-            }).hasMessage("no policy types specified on service template");
-
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePolicyTypes(new ToscaServiceTemplate());
-            }).hasMessage("no policy types specified on service template");
-
-            assertTrue(databaseProvider.deletePolicyType(NAME, VERSION_100).getPolicyTypes().isEmpty());
-
-            assertTrue(databaseProvider.deletePolicyType(NAME, VERSION_100).getPolicyTypes().isEmpty());
-
-            assertTrue(
-                    databaseProvider.getPolicies(NAME, VERSION_100).getToscaTopologyTemplate().getPolicies().isEmpty());
-            assertTrue(databaseProvider.getPolicyList(NAME, VERSION_100).isEmpty());
-            assertEquals(0, databaseProvider.getFilteredPolicies(ToscaPolicyFilter.builder().build())
-                    .getToscaTopologyTemplate().getPolicies().size());
-            assertEquals(0, databaseProvider.getFilteredPolicyList(ToscaPolicyFilter.builder().build()).size());
-
-            assertThatThrownBy(() -> {
-                databaseProvider.createPolicies(new ToscaServiceTemplate());
-            }).hasMessage("topology template not specified on service template");
-
-            assertThatThrownBy(() -> {
-                databaseProvider.updatePolicies(new ToscaServiceTemplate());
-            }).hasMessage("topology template not specified on service template");
-
-            assertTrue(databaseProvider.deletePolicy("Policy", "0.0.0").getToscaTopologyTemplate().getPolicies()
-                    .isEmpty());
-
-            assertThatThrownBy(() -> {
-                databaseProvider.getOperationalPolicy(POLICY_ID, null);
-            }).hasMessage("no policy found for policy: policy_id:null");
-
-            assertThatThrownBy(() -> {
-                databaseProvider.getOperationalPolicy(POLICY_ID, "10");
-            }).hasMessage("no policy found for policy: policy_id:10");
-
-            assertThatThrownBy(() -> {
-                databaseProvider.createOperationalPolicy(new LegacyOperationalPolicy());
-            }).hasMessageMatching(NAME_IS_NULL);
-
-            assertThatThrownBy(() -> {
-                databaseProvider.updateOperationalPolicy(new LegacyOperationalPolicy());
-            }).hasMessageMatching(NAME_IS_NULL);
-
-            assertThatThrownBy(() -> {
-                databaseProvider.deleteOperationalPolicy(POLICY_ID, "55");
-            }).hasMessage("no policy found for policy: policy_id:55");
-
-            assertThatThrownBy(() -> {
-                databaseProvider.getGuardPolicy(POLICY_ID, null);
-            }).hasMessage("no policy found for policy: policy_id:null");
-
-            assertThatThrownBy(() -> {
-                databaseProvider.getGuardPolicy(POLICY_ID, "6");
-            }).hasMessage("no policy found for policy: policy_id:6");
-
-            assertThatThrownBy(() -> {
-                databaseProvider.createGuardPolicy(new LegacyGuardPolicyInput());
-            }).hasMessage("policy type for guard policy \"null\" unknown");
-
-            assertThatThrownBy(() -> {
-                databaseProvider.updateGuardPolicy(new LegacyGuardPolicyInput());
-            }).hasMessage("policy type for guard policy \"null\" unknown");
-
-            assertThatThrownBy(() -> {
-                databaseProvider.deleteGuardPolicy(POLICY_ID, "33");
-            }).hasMessage("no policy found for policy: policy_id:33");
-
-            assertEquals(0, databaseProvider.getPdpGroups(NAME).size());
-            assertEquals(0, databaseProvider.getFilteredPdpGroups(PdpGroupFilter.builder().build()).size());
-
-            assertNotNull(databaseProvider.createPdpGroups(new ArrayList<>()));
-            assertNotNull(databaseProvider.updatePdpGroups(new ArrayList<>()));
-
-            PdpGroup pdpGroup = new PdpGroup();
-            pdpGroup.setName(GROUP);
-            pdpGroup.setVersion("1.2.3");
-            pdpGroup.setPdpGroupState(PdpState.ACTIVE);
-            pdpGroup.setPdpSubgroups(new ArrayList<>());
-            List<PdpGroup> groupList = new ArrayList<>();
-            groupList.add(pdpGroup);
-
-            PdpSubGroup pdpSubGroup = new PdpSubGroup();
-            pdpSubGroup.setPdpType("type");
-            pdpSubGroup.setDesiredInstanceCount(123);
-            pdpSubGroup.setSupportedPolicyTypes(new ArrayList<>());
-            pdpSubGroup.getSupportedPolicyTypes().add(new ToscaPolicyTypeIdentifier("type", "7.8.9"));
-            pdpGroup.getPdpSubgroups().add(pdpSubGroup);
-
-            Pdp pdp = new Pdp();
-            pdp.setInstanceId("type-0");
-            pdp.setMessage("Hello");
-            pdp.setPdpState(PdpState.ACTIVE);
-            pdp.setHealthy(PdpHealthStatus.UNKNOWN);
-            pdpSubGroup.setPdpInstances(new ArrayList<>());
-            pdpSubGroup.getPdpInstances().add(pdp);
-
-            PdpStatistics pdpStatistics = new PdpStatistics();
-            pdpStatistics.setPdpInstanceId(NAME);
-            pdpStatistics.setTimeStamp(new Date());
-            pdpStatistics.setPdpGroupName(GROUP);
-            pdpStatistics.setPdpSubGroupName("type");
-            ArrayList<PdpStatistics> statisticsArrayList = new ArrayList<>();
-            statisticsArrayList.add(pdpStatistics);
-
-            assertEquals(123, databaseProvider.createPdpGroups(groupList).get(0).getPdpSubgroups().get(0)
-                    .getDesiredInstanceCount());
-            assertEquals(1, databaseProvider.getPdpGroups(GROUP).size());
-
-            pdpSubGroup.setDesiredInstanceCount(234);
-            databaseProvider.updatePdpSubGroup(GROUP, pdpSubGroup);
-            assertEquals(234,
-                    databaseProvider.getPdpGroups(GROUP).get(0).getPdpSubgroups().get(0).getDesiredInstanceCount());
-
-            assertEquals("Hello", databaseProvider.getPdpGroups(GROUP).get(0).getPdpSubgroups().get(0).getPdpInstances()
-                    .get(0).getMessage());
-            pdp.setMessage("Howdy");
-            databaseProvider.updatePdp(GROUP, "type", pdp);
-            assertEquals("Howdy", databaseProvider.getPdpGroups(GROUP).get(0).getPdpSubgroups().get(0).getPdpInstances()
-                    .get(0).getMessage());
-
-            assertThatThrownBy(() -> {
-                databaseProvider.deletePdpGroup(NAME);
-            }).hasMessage("delete of PDP group \"name:0.0.0\" failed, PDP group does not exist");
-
-            assertEquals(pdpGroup.getName(), databaseProvider.deletePdpGroup(GROUP).getName());
-
-            assertEquals(0, databaseProvider.getPdpStatistics(null, null).size());
-            assertEquals(1, databaseProvider.createPdpStatistics(statisticsArrayList).size());
-            assertEquals(1, databaseProvider.updatePdpStatistics(statisticsArrayList).size());
-
-            assertEquals(NAME, databaseProvider.getPdpStatistics(null, null).get(0).getPdpInstanceId());
-            assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(null, GROUP, null, null, null, ORDER, 0).get(0)
-                    .getPdpInstanceId());
-            assertEquals(0,
-                    databaseProvider.getFilteredPdpStatistics(null, GROUP, null, new Date(), null, ORDER, 0).size());
-            assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(null, GROUP, null, null, new Date(), ORDER, 0)
-                    .get(0).getPdpInstanceId());
-            assertEquals(0, databaseProvider
-                    .getFilteredPdpStatistics(null, GROUP, null, new Date(), new Date(), ORDER, 0).size());
-
-            assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(NAME, GROUP, null, null, null, ORDER, 0).get(0)
-                    .getPdpInstanceId());
-            assertEquals(0, databaseProvider
-                    .getFilteredPdpStatistics(NAME, GROUP, null, new Date(), new Date(), ORDER, 0).size());
-
-            assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(NAME, GROUP, "type", null, null, ORDER, 0)
-                    .get(0).getPdpInstanceId());
-            assertEquals(0, databaseProvider
-                    .getFilteredPdpStatistics(NAME, GROUP, "type", new Date(), new Date(), ORDER, 0).size());
-
-            assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(NAME, GROUP, "type", null, null, ORDER, 1)
-                    .get(0).getPdpInstanceId());
-            assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(NAME, GROUP, "type", null, null, ORDER, 5)
-                    .get(0).getPdpInstanceId());
-            assertEquals(0, databaseProvider
-                    .getFilteredPdpStatistics(NAME, GROUP, "type", new Date(), new Date(), ORDER, 5).size());
-
-            assertEquals(NAME, databaseProvider.deletePdpStatistics(NAME, null).get(0).getPdpInstanceId());
-            assertEquals(0, databaseProvider.getPdpStatistics(null, null).size());
-        } catch (Exception exc) {
-            LOGGER.warn("test should not throw an exception", exc);
-            fail("test should not throw an exception");
-        }
+    public void testProviderMethods() throws PfModelException {
+        PolicyModelsProvider databaseProvider =
+                new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters);
+
+        assertThatThrownBy(() -> databaseProvider.getPolicyTypes(NAME, VERSION_100))
+                .hasMessage("service template not found in database");
+
+        assertTrue(databaseProvider.getPolicyTypeList(NAME, VERSION_100).isEmpty());
+
+        assertThatThrownBy(() -> databaseProvider.getFilteredPolicyTypes(ToscaPolicyTypeFilter.builder().build()))
+                .hasMessage("service template not found in database");
+
+        assertTrue(databaseProvider.getFilteredPolicyTypeList(ToscaPolicyTypeFilter.builder().build()).isEmpty());
+
+        assertThatThrownBy(() -> {
+            databaseProvider.createPolicyTypes(new ToscaServiceTemplate());
+        }).hasMessage("no policy types specified on service template");
+
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePolicyTypes(new ToscaServiceTemplate());
+        }).hasMessage("no policy types specified on service template");
+
+        assertThatThrownBy(() -> databaseProvider.deletePolicyType(NAME, VERSION_100))
+                .hasMessage("service template not found in database");
+
+        assertThatThrownBy(() -> databaseProvider.getPolicies(NAME, VERSION_100))
+                .hasMessage("service template not found in database");
+
+        assertTrue(databaseProvider.getPolicyList(NAME, VERSION_100).isEmpty());
+
+        assertThatThrownBy(() -> databaseProvider.getFilteredPolicies(ToscaPolicyFilter.builder().build()))
+                .hasMessage("service template not found in database");
+
+        assertTrue(databaseProvider.getFilteredPolicyList(ToscaPolicyFilter.builder().build()).isEmpty());
+
+        assertThatThrownBy(() -> {
+            databaseProvider.createPolicies(new ToscaServiceTemplate());
+        }).hasMessage("topology template not specified on service template");
+
+        assertThatThrownBy(() -> {
+            databaseProvider.updatePolicies(new ToscaServiceTemplate());
+        }).hasMessage("topology template not specified on service template");
+
+        assertThatThrownBy(() -> databaseProvider.deletePolicy("Policy", "0.0.0").getToscaTopologyTemplate())
+                .hasMessage("service template not found in database");
+
+        assertThatThrownBy(() -> {
+            databaseProvider.getOperationalPolicy(POLICY_ID, null);
+        }).hasMessage("no policy found for policy: policy_id:null");
+
+        assertThatThrownBy(() -> {
+            databaseProvider.getOperationalPolicy(POLICY_ID, "10");
+        }).hasMessage("no policy found for policy: policy_id:10");
+
+        assertThatThrownBy(() -> {
+            databaseProvider.createOperationalPolicy(new LegacyOperationalPolicy());
+        }).hasMessageMatching(NAME_IS_NULL);
+
+        assertThatThrownBy(() -> {
+            databaseProvider.updateOperationalPolicy(new LegacyOperationalPolicy());
+        }).hasMessageMatching(NAME_IS_NULL);
+
+        assertThatThrownBy(() -> {
+            databaseProvider.deleteOperationalPolicy(POLICY_ID, "55");
+        }).hasMessage("no policy found for policy: policy_id:55");
+
+        assertThatThrownBy(() -> {
+            databaseProvider.getGuardPolicy(POLICY_ID, null);
+        }).hasMessage("no policy found for policy: policy_id:null");
+
+        assertThatThrownBy(() -> {
+            databaseProvider.getGuardPolicy(POLICY_ID, "6");
+        }).hasMessage("no policy found for policy: policy_id:6");
+
+        assertThatThrownBy(() -> {
+            databaseProvider.createGuardPolicy(new LegacyGuardPolicyInput());
+        }).hasMessage("policy type for guard policy \"null\" unknown");
+
+        assertThatThrownBy(() -> {
+            databaseProvider.updateGuardPolicy(new LegacyGuardPolicyInput());
+        }).hasMessage("policy type for guard policy \"null\" unknown");
+
+        assertThatThrownBy(() -> {
+            databaseProvider.deleteGuardPolicy(POLICY_ID, "33");
+        }).hasMessage("no policy found for policy: policy_id:33");
+
+        assertEquals(0, databaseProvider.getPdpGroups(NAME).size());
+        assertEquals(0, databaseProvider.getFilteredPdpGroups(PdpGroupFilter.builder().build()).size());
+
+        assertNotNull(databaseProvider.createPdpGroups(new ArrayList<>()));
+        assertNotNull(databaseProvider.updatePdpGroups(new ArrayList<>()));
+
+        PdpGroup pdpGroup = new PdpGroup();
+        pdpGroup.setName(GROUP);
+        pdpGroup.setVersion("1.2.3");
+        pdpGroup.setPdpGroupState(PdpState.ACTIVE);
+        pdpGroup.setPdpSubgroups(new ArrayList<>());
+        List<PdpGroup> groupList = new ArrayList<>();
+        groupList.add(pdpGroup);
+
+        PdpSubGroup pdpSubGroup = new PdpSubGroup();
+        pdpSubGroup.setPdpType("type");
+        pdpSubGroup.setDesiredInstanceCount(123);
+        pdpSubGroup.setSupportedPolicyTypes(new ArrayList<>());
+        pdpSubGroup.getSupportedPolicyTypes().add(new ToscaPolicyTypeIdentifier("type", "7.8.9"));
+        pdpGroup.getPdpSubgroups().add(pdpSubGroup);
+
+        Pdp pdp = new Pdp();
+        pdp.setInstanceId("type-0");
+        pdp.setMessage("Hello");
+        pdp.setPdpState(PdpState.ACTIVE);
+        pdp.setHealthy(PdpHealthStatus.UNKNOWN);
+        pdpSubGroup.setPdpInstances(new ArrayList<>());
+        pdpSubGroup.getPdpInstances().add(pdp);
+
+        PdpStatistics pdpStatistics = new PdpStatistics();
+        pdpStatistics.setPdpInstanceId(NAME);
+        pdpStatistics.setTimeStamp(new Date());
+        pdpStatistics.setPdpGroupName(GROUP);
+        pdpStatistics.setPdpSubGroupName("type");
+        ArrayList<PdpStatistics> statisticsArrayList = new ArrayList<>();
+        statisticsArrayList.add(pdpStatistics);
+
+        assertEquals(123,
+                databaseProvider.createPdpGroups(groupList).get(0).getPdpSubgroups().get(0).getDesiredInstanceCount());
+        assertEquals(1, databaseProvider.getPdpGroups(GROUP).size());
+
+        pdpSubGroup.setDesiredInstanceCount(234);
+        databaseProvider.updatePdpSubGroup(GROUP, pdpSubGroup);
+        assertEquals(234,
+                databaseProvider.getPdpGroups(GROUP).get(0).getPdpSubgroups().get(0).getDesiredInstanceCount());
+
+        assertEquals("Hello", databaseProvider.getPdpGroups(GROUP).get(0).getPdpSubgroups().get(0).getPdpInstances()
+                .get(0).getMessage());
+        pdp.setMessage("Howdy");
+        databaseProvider.updatePdp(GROUP, "type", pdp);
+        assertEquals("Howdy", databaseProvider.getPdpGroups(GROUP).get(0).getPdpSubgroups().get(0).getPdpInstances()
+                .get(0).getMessage());
+
+        assertThatThrownBy(() -> {
+            databaseProvider.deletePdpGroup(NAME);
+        }).hasMessage("delete of PDP group \"name:0.0.0\" failed, PDP group does not exist");
+
+        assertEquals(pdpGroup.getName(), databaseProvider.deletePdpGroup(GROUP).getName());
+
+        assertEquals(0, databaseProvider.getPdpStatistics(null, null).size());
+        assertEquals(1, databaseProvider.createPdpStatistics(statisticsArrayList).size());
+        assertEquals(1, databaseProvider.updatePdpStatistics(statisticsArrayList).size());
+
+        assertEquals(NAME, databaseProvider.getPdpStatistics(null, null).get(0).getPdpInstanceId());
+        assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(null, GROUP, null, null, null, ORDER, 0).get(0)
+                .getPdpInstanceId());
+        assertEquals(0,
+                databaseProvider.getFilteredPdpStatistics(null, GROUP, null, new Date(), null, ORDER, 0).size());
+        assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(null, GROUP, null, null, new Date(), ORDER, 0)
+                .get(0).getPdpInstanceId());
+        assertEquals(0,
+                databaseProvider.getFilteredPdpStatistics(null, GROUP, null, new Date(), new Date(), ORDER, 0).size());
+
+        assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(NAME, GROUP, null, null, null, ORDER, 0).get(0)
+                .getPdpInstanceId());
+        assertEquals(0,
+                databaseProvider.getFilteredPdpStatistics(NAME, GROUP, null, new Date(), new Date(), ORDER, 0).size());
+
+        assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(NAME, GROUP, "type", null, null, ORDER, 0).get(0)
+                .getPdpInstanceId());
+        assertEquals(0, databaseProvider.getFilteredPdpStatistics(NAME, GROUP, "type", new Date(), new Date(), ORDER, 0)
+                .size());
+
+        assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(NAME, GROUP, "type", null, null, ORDER, 1).get(0)
+                .getPdpInstanceId());
+        assertEquals(NAME, databaseProvider.getFilteredPdpStatistics(NAME, GROUP, "type", null, null, ORDER, 5).get(0)
+                .getPdpInstanceId());
+        assertEquals(0, databaseProvider.getFilteredPdpStatistics(NAME, GROUP, "type", new Date(), new Date(), ORDER, 5)
+                .size());
+
+        assertEquals(NAME, databaseProvider.deletePdpStatistics(NAME, null).get(0).getPdpInstanceId());
+        assertEquals(0, databaseProvider.getPdpStatistics(null, null).size());
+
+        databaseProvider.close();
     }
 }
diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/DummyPolicyModelsProviderTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/DummyPolicyModelsProviderTest.java
index 452bbd42a..500d9d4c0 100644
--- a/models-provider/src/test/java/org/onap/policy/models/provider/impl/DummyPolicyModelsProviderTest.java
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/DummyPolicyModelsProviderTest.java
@@ -78,47 +78,45 @@ public class DummyPolicyModelsProviderTest {
         parameters.setDatabaseUrl("jdbc:dummy");
         parameters.setPersistenceUnit("dummy");
 
-        try (PolicyModelsProvider dummyProvider =
-                new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters)) {
-            dummyProvider.init();
-
-            assertNotNull(dummyProvider.getPolicyTypes("name", VERSION));
-            assertNotNull(dummyProvider.getFilteredPolicyTypes(ToscaPolicyTypeFilter.builder().build()));
-            assertNotNull(dummyProvider.getPolicyTypeList("name", VERSION));
-            assertNotNull(dummyProvider.getFilteredPolicyTypeList(ToscaPolicyTypeFilter.builder().build()));
-            assertNotNull(dummyProvider.createPolicyTypes(new ToscaServiceTemplate()));
-            assertNotNull(dummyProvider.updatePolicyTypes(new ToscaServiceTemplate()));
-            assertNotNull(dummyProvider.deletePolicyType("name", VERSION));
-
-            assertNotNull(dummyProvider.getPolicies("name", VERSION));
-            assertNotNull(dummyProvider.getFilteredPolicies(ToscaPolicyFilter.builder().build()));
-            assertNotNull(dummyProvider.getPolicyList("name", VERSION));
-            assertNotNull(dummyProvider.getFilteredPolicyList(ToscaPolicyFilter.builder().build()));
-            assertNotNull(dummyProvider.createPolicies(new ToscaServiceTemplate()));
-            assertNotNull(dummyProvider.updatePolicies(new ToscaServiceTemplate()));
-            assertNotNull(dummyProvider.deletePolicy("name", VERSION));
-
-            assertNotNull(dummyProvider.getOperationalPolicy(POLICY_ID, "1"));
-            assertNotNull(dummyProvider.createOperationalPolicy(new LegacyOperationalPolicy()));
-            assertNotNull(dummyProvider.updateOperationalPolicy(new LegacyOperationalPolicy()));
-            assertNotNull(dummyProvider.deleteOperationalPolicy(POLICY_ID, "1"));
-
-            assertNotNull(dummyProvider.getGuardPolicy(POLICY_ID, "1"));
-            assertNotNull(dummyProvider.createGuardPolicy(new LegacyGuardPolicyInput()));
-            assertNotNull(dummyProvider.updateGuardPolicy(new LegacyGuardPolicyInput()));
-            assertNotNull(dummyProvider.deleteGuardPolicy(POLICY_ID, "1"));
-
-            assertTrue(dummyProvider.getPdpGroups("name").isEmpty());
-            assertTrue(dummyProvider.getFilteredPdpGroups(PdpGroupFilter.builder().build()).isEmpty());
-            assertTrue(dummyProvider.createPdpGroups(new ArrayList<>()).isEmpty());
-            assertTrue(dummyProvider.updatePdpGroups(new ArrayList<>()).isEmpty());
-            assertNull(dummyProvider.deletePdpGroup("name"));
-
-            dummyProvider.updatePdpSubGroup("name", new PdpSubGroup());
-            dummyProvider.updatePdp("name", "type", new Pdp());
-            dummyProvider.updatePdpStatistics(new ArrayList<>());
-            assertTrue(dummyProvider.getPdpStatistics("name", null).isEmpty());
-        }
+        PolicyModelsProvider dummyProvider = new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters);
+        dummyProvider.init();
+
+        assertNotNull(dummyProvider.getPolicyTypes("name", VERSION));
+        assertNotNull(dummyProvider.getFilteredPolicyTypes(ToscaPolicyTypeFilter.builder().build()));
+        assertNotNull(dummyProvider.getPolicyTypeList("name", VERSION));
+        assertNotNull(dummyProvider.getFilteredPolicyTypeList(ToscaPolicyTypeFilter.builder().build()));
+        assertNotNull(dummyProvider.createPolicyTypes(new ToscaServiceTemplate()));
+        assertNotNull(dummyProvider.updatePolicyTypes(new ToscaServiceTemplate()));
+        assertNotNull(dummyProvider.deletePolicyType("name", VERSION));
+
+        assertNotNull(dummyProvider.getPolicies("name", VERSION));
+        assertNotNull(dummyProvider.getFilteredPolicies(ToscaPolicyFilter.builder().build()));
+        assertNotNull(dummyProvider.getPolicyList("name", VERSION));
+        assertNotNull(dummyProvider.getFilteredPolicyList(ToscaPolicyFilter.builder().build()));
+        assertNotNull(dummyProvider.createPolicies(new ToscaServiceTemplate()));
+        assertNotNull(dummyProvider.updatePolicies(new ToscaServiceTemplate()));
+        assertNotNull(dummyProvider.deletePolicy("name", VERSION));
+
+        assertNotNull(dummyProvider.getOperationalPolicy(POLICY_ID, "1"));
+        assertNotNull(dummyProvider.createOperationalPolicy(new LegacyOperationalPolicy()));
+        assertNotNull(dummyProvider.updateOperationalPolicy(new LegacyOperationalPolicy()));
+        assertNotNull(dummyProvider.deleteOperationalPolicy(POLICY_ID, "1"));
+
+        assertNotNull(dummyProvider.getGuardPolicy(POLICY_ID, "1"));
+        assertNotNull(dummyProvider.createGuardPolicy(new LegacyGuardPolicyInput()));
+        assertNotNull(dummyProvider.updateGuardPolicy(new LegacyGuardPolicyInput()));
+        assertNotNull(dummyProvider.deleteGuardPolicy(POLICY_ID, "1"));
+
+        assertTrue(dummyProvider.getPdpGroups("name").isEmpty());
+        assertTrue(dummyProvider.getFilteredPdpGroups(PdpGroupFilter.builder().build()).isEmpty());
+        assertTrue(dummyProvider.createPdpGroups(new ArrayList<>()).isEmpty());
+        assertTrue(dummyProvider.updatePdpGroups(new ArrayList<>()).isEmpty());
+        assertNull(dummyProvider.deletePdpGroup("name"));
+
+        dummyProvider.updatePdpSubGroup("name", new PdpSubGroup());
+        dummyProvider.updatePdp("name", "type", new Pdp());
+        dummyProvider.updatePdpStatistics(new ArrayList<>());
+        assertTrue(dummyProvider.getPdpStatistics("name", null).isEmpty());
     }
 
     @Test
diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyGuardPersistenceTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyGuardPersistenceTest.java
index 83665b078..ecb50cdc3 100644
--- a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyGuardPersistenceTest.java
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyGuardPersistenceTest.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -103,7 +103,7 @@ public class PolicyLegacyGuardPersistenceTest {
     }
 
     @Test
-    public void testPolicyPersistence() throws Exception {
+    public void testLegacyGuardPolicyPersistence() throws Exception {
         for (int i = 0; i < policyInputResourceNames.length; i++) {
             String policyInputString = ResourceUtils.getResourceAsString(policyInputResourceNames[i]);
             String policyOutputString = ResourceUtils.getResourceAsString(policyOutputResourceNames[i]);
diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyOperationalPersistenceTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyOperationalPersistenceTest.java
index 29e3b5a47..0eee4b2b6 100644
--- a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyOperationalPersistenceTest.java
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyLegacyOperationalPersistenceTest.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -103,7 +103,7 @@ public class PolicyLegacyOperationalPersistenceTest {
     }
 
     @Test
-    public void testPolicyPersistence() throws Exception {
+    public void testLegacyOperationalPolicyPersistence() throws Exception {
         for (int i = 0; i < policyInputResourceNames.length; i++) {
             String policyInputString = ResourceUtils.getResourceAsString(policyInputResourceNames[i]);
             String policyOutputString = ResourceUtils.getResourceAsString(policyOutputResourceNames[i]);
diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyToscaPersistenceTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyToscaPersistenceTest.java
index f4196811f..0cdc2ad49 100644
--- a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyToscaPersistenceTest.java
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyToscaPersistenceTest.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -92,7 +92,7 @@ public class PolicyToscaPersistenceTest {
     }
 
     @Test
-    public void testPolicyPersistence() throws Exception {
+    public void testToscaPolicyPersistence() throws Exception {
         Set<String> policyResources = ResourceUtils.getDirectoryContents("policies");
 
         for (String policyResource : policyResources) {
diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyTypePersistenceTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyTypePersistenceTest.java
index 0ecf8a046..22722186c 100644
--- a/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyTypePersistenceTest.java
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/PolicyTypePersistenceTest.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,29 +20,24 @@
 
 package org.onap.policy.models.provider.impl;
 
+import static org.assertj.core.api.Assertions.assertThatCode;
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 
 import java.util.Base64;
-import java.util.List;
 import java.util.Set;
 
-import lombok.NonNull;
-
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
-import org.onap.policy.common.utils.coder.StandardCoder;
+import org.onap.policy.common.utils.coder.YamlJsonTranslator;
 import org.onap.policy.common.utils.resources.ResourceUtils;
 import org.onap.policy.models.base.PfModelException;
 import org.onap.policy.models.provider.PolicyModelsProvider;
 import org.onap.policy.models.provider.PolicyModelsProviderFactory;
 import org.onap.policy.models.provider.PolicyModelsProviderParameters;
-import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyType;
-import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeFilter;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaEntityKey;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
-import org.yaml.snakeyaml.Yaml;
 
 /**
  * Test persistence of monitoring policies to and from the database.
@@ -50,8 +45,7 @@ import org.yaml.snakeyaml.Yaml;
  * @author Liam Fallon (liam.fallon@est.tech)
  */
 public class PolicyTypePersistenceTest {
-    private StandardCoder standardCoder;
-
+    private YamlJsonTranslator yamlTranslator = new YamlJsonTranslator();
     private PolicyModelsProvider databaseProvider;
 
     /**
@@ -73,14 +67,6 @@ public class PolicyTypePersistenceTest {
         databaseProvider = new PolicyModelsProviderFactory().createPolicyModelsProvider(parameters);
     }
 
-    /**
-     * Set up standard coder.
-     */
-    @Before
-    public void setupStandardCoder() {
-        standardCoder = new StandardCoder();
-    }
-
     @After
     public void teardown() throws Exception {
         databaseProvider.close();
@@ -90,60 +76,54 @@ public class PolicyTypePersistenceTest {
     public void testPolicyTypePersistence() throws Exception {
         Set<String> policyTypeDirectoryContents = ResourceUtils.getDirectoryContents("policytypes");
 
+        ToscaServiceTemplate serviceTemplate = new ToscaServiceTemplate();
+
         for (String policyTypeFilePath : policyTypeDirectoryContents) {
             String policyTypeString = ResourceUtils.getResourceAsString(policyTypeFilePath);
-            testYamlStringPolicyTypePersistence(policyTypeString);
-        }
-    }
-
-    private void testYamlStringPolicyTypePersistence(final String policyTypeString) throws Exception {
-        Object yamlObject = new Yaml().load(policyTypeString);
-        String yamlAsJsonString = new StandardCoder().encode(yamlObject);
 
-        testJsonStringPolicyTypePersistence(yamlAsJsonString);
-    }
-
-    /**
-     * Check persistence of a policy.
-     *
-     * @param policyTypeString the policy as a string
-     * @throws Exception any exception thrown
-     */
-    public void testJsonStringPolicyTypePersistence(@NonNull final String policyTypeString) throws Exception {
-        ToscaServiceTemplate serviceTemplate = standardCoder.decode(policyTypeString, ToscaServiceTemplate.class);
-
-        assertNotNull(serviceTemplate);
-        ToscaPolicyType inPolicyType = serviceTemplate.getPolicyTypes().values().iterator().next();
-
-        databaseProvider.createPolicyTypes(serviceTemplate);
-        checkPolicyTypePersistence(inPolicyType);
-
-        databaseProvider.updatePolicyTypes(serviceTemplate);
-        checkPolicyTypePersistence(inPolicyType);
-    }
+            ToscaServiceTemplate foundPolicyTypeSt =
+                    yamlTranslator.fromYaml(policyTypeString, ToscaServiceTemplate.class);
+
+            serviceTemplate.setDerivedFrom(foundPolicyTypeSt.getDerivedFrom());
+            serviceTemplate.setDescription(foundPolicyTypeSt.getDescription());
+            serviceTemplate.setMetadata(foundPolicyTypeSt.getMetadata());
+            serviceTemplate.setName(foundPolicyTypeSt.getName());
+            serviceTemplate.setToscaDefinitionsVersion(foundPolicyTypeSt.getToscaDefinitionsVersion());
+            serviceTemplate.setToscaTopologyTemplate(foundPolicyTypeSt.getToscaTopologyTemplate());
+            serviceTemplate.setVersion(foundPolicyTypeSt.getVersion());
+
+            if (foundPolicyTypeSt.getDataTypes() != null) {
+                if (serviceTemplate.getDataTypes() == null) {
+                    serviceTemplate.setDataTypes(foundPolicyTypeSt.getDataTypes());
+                } else {
+                    serviceTemplate.getDataTypes().putAll(foundPolicyTypeSt.getDataTypes());
+                }
+            }
+
+            if (serviceTemplate.getPolicyTypes() == null) {
+                serviceTemplate.setPolicyTypes(foundPolicyTypeSt.getPolicyTypes());
+            } else {
+                serviceTemplate.getPolicyTypes().putAll(foundPolicyTypeSt.getPolicyTypes());
+            }
+        }
 
-    private void checkPolicyTypePersistence(ToscaPolicyType inPolicyType) throws PfModelException {
-        List<ToscaPolicyType> policyTypeList =
-                databaseProvider.getPolicyTypeList(inPolicyType.getName(), inPolicyType.getVersion());
+        assertThatCode(() -> databaseProvider.createPolicyTypes(serviceTemplate)).doesNotThrowAnyException();
 
-        policyTypeList = databaseProvider.getFilteredPolicyTypeList(ToscaPolicyTypeFilter.builder()
-                .name(inPolicyType.getName()).version(inPolicyType.getVersion()).build());
+        ToscaEntityKey resourceOptimizationPtKey =
+                new ToscaEntityKey("onap.policies.optimization.resource.OptimizationPolicy", "1.0.0");
 
-        assertEquals(1, policyTypeList.size());
-        assertEquals(inPolicyType.getName(), policyTypeList.get(0).getName());
+        ToscaServiceTemplate resOptPolicyTypeSt = databaseProvider.getPolicyTypes(resourceOptimizationPtKey.getName(),
+                resourceOptimizationPtKey.getVersion());
 
-        policyTypeList = databaseProvider
-                .getFilteredPolicyTypeList(ToscaPolicyTypeFilter.builder().name(inPolicyType.getName()).build());
+        assertEquals(3, resOptPolicyTypeSt.getPolicyTypesAsMap().size());
+        assertTrue(resOptPolicyTypeSt.getPolicyTypesAsMap().containsKey(resourceOptimizationPtKey));
 
-        assertEquals(1, policyTypeList.size());
-        assertEquals(inPolicyType.getName(), policyTypeList.get(0).getName());
+        ToscaEntityKey resourcePtKey = new ToscaEntityKey("onap.policies.optimization.Resource", "1.0.0");
+        assertTrue(resOptPolicyTypeSt.getPolicyTypesAsMap().containsKey(resourcePtKey));
 
-        policyTypeList = databaseProvider.getFilteredPolicyTypeList(ToscaPolicyTypeFilter.builder().build());
-        assertTrue(policyTypeList.size() <= 3);
-        assertEquals(inPolicyType.getName(), policyTypeList.get(0).getName());
+        ToscaEntityKey optimizationPtKey = new ToscaEntityKey("onap.policies.Optimization", "1.0.0");
+        assertTrue(resOptPolicyTypeSt.getPolicyTypesAsMap().containsKey(optimizationPtKey));
 
-        for (ToscaPolicyType policyType : databaseProvider.getPolicyTypeList(null, null)) {
-            databaseProvider.deletePolicyType(policyType.getName(), policyType.getVersion());
-        }
+        assertEquals(2, resOptPolicyTypeSt.getDataTypesAsMap().size());
     }
 }
diff --git a/models-provider/src/test/resources/META-INF/persistence.xml b/models-provider/src/test/resources/META-INF/persistence.xml
index 4306413a5..77062ce23 100644
--- a/models-provider/src/test/resources/META-INF/persistence.xml
+++ b/models-provider/src/test/resources/META-INF/persistence.xml
@@ -27,8 +27,13 @@
         <class>org.onap.policy.models.dao.converters.Uuid2String</class>
         <class>org.onap.policy.models.base.PfConceptKey</class>
         <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaDataType</class>
-        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicyType</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaDataTypes</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicies</class>
         <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicy</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicyType</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicyTypes</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaTopologyTemplate</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaServiceTemplate</class>
         <class>org.onap.policy.models.pdp.persistence.concepts.JpaPdpGroup</class>
         <class>org.onap.policy.models.pdp.persistence.concepts.JpaPdpSubGroup</class>
         <class>org.onap.policy.models.pdp.persistence.concepts.JpaPdp</class>
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProvider.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProvider.java
index 7999f620b..6e60303a0 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProvider.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProvider.java
@@ -22,15 +22,19 @@
 package org.onap.policy.models.tosca.authorative.provider;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.TreeMap;
 
+import javax.ws.rs.core.Response.Status;
+
 import lombok.NonNull;
 
 import org.onap.policy.models.base.PfConceptKey;
 import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.base.PfModelRuntimeException;
 import org.onap.policy.models.dao.PfDao;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaEntity;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
@@ -87,8 +91,14 @@ public class AuthorativeToscaProvider {
 
         LOGGER.debug("->getPolicyTypeList: name={}, version={}", name, version);
 
-        List<ToscaPolicyType> policyTypeList = new ArrayList<>(
-                new SimpleToscaProvider().getPolicyTypes(dao, name, version).toAuthorative().getPolicyTypes().values());
+        List<ToscaPolicyType> policyTypeList;
+
+        try {
+            policyTypeList = new ArrayList<>(new SimpleToscaProvider().getPolicyTypes(dao, name, version)
+                    .toAuthorative().getPolicyTypes().values());
+        } catch (PfModelRuntimeException pfme) {
+            return handlePfModelRuntimeException(pfme);
+        }
 
         LOGGER.debug("<-getPolicyTypeList: name={}, version={}, policyTypeList={}", name, version, policyTypeList);
         return policyTypeList;
@@ -136,6 +146,7 @@ public class AuthorativeToscaProvider {
 
         LOGGER.debug("<-getFilteredPolicyTypeList: filter={}, filteredPolicyTypeList={}", filter,
                 filteredPolicyTypeList);
+
         return filteredPolicyTypeList;
     }
 
@@ -234,8 +245,14 @@ public class AuthorativeToscaProvider {
             throws PfModelException {
         LOGGER.debug("->getPolicyList: name={}, version={}", name, version);
 
-        List<ToscaPolicy> policyList = asConceptList(new SimpleToscaProvider().getPolicies(dao, name, version)
-                .toAuthorative().getToscaTopologyTemplate().getPolicies());
+        List<ToscaPolicy> policyList;
+
+        try {
+            policyList = asConceptList(new SimpleToscaProvider().getPolicies(dao, name, version).toAuthorative()
+                    .getToscaTopologyTemplate().getPolicies());
+        } catch (PfModelRuntimeException pfme) {
+            return handlePfModelRuntimeException(pfme);
+        }
 
         LOGGER.debug("<-getPolicyList: name={}, version={}, policyTypeList={}", name, version, policyList);
         return policyList;
@@ -397,4 +414,18 @@ public class AuthorativeToscaProvider {
 
         return conceptMap;
     }
+
+    /**
+     * Handle a PfModelRuntimeException on a list call.
+     *
+     * @param pfme the model exception
+     * @return an empty list on 404
+     */
+    private <T extends ToscaEntity> List<T> handlePfModelRuntimeException(final PfModelRuntimeException pfme) {
+        if (Status.NOT_FOUND.equals(pfme.getErrorResponse().getResponseCode())) {
+            return Collections.emptyList();
+        } else {
+            throw pfme;
+        }
+    }
 }
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaDataType.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaDataType.java
index 86d67e4d8..a44d7654c 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaDataType.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaDataType.java
@@ -3,7 +3,7 @@
  * ONAP Policy Model
  * ================================================================================
  * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,10 +24,13 @@
 package org.onap.policy.models.tosca.simple.concepts;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.LinkedHashMap;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.Set;
 
 import javax.persistence.ElementCollection;
 import javax.persistence.Entity;
@@ -40,6 +43,7 @@ import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.NonNull;
 
+import org.apache.commons.collections4.CollectionUtils;
 import org.onap.policy.models.base.PfAuthorative;
 import org.onap.policy.models.base.PfConcept;
 import org.onap.policy.models.base.PfConceptKey;
@@ -52,6 +56,7 @@ import org.onap.policy.models.base.PfValidationResult.ValidationResult;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaConstraint;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaDataType;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaProperty;
+import org.onap.policy.models.tosca.utils.ToscaUtils;
 
 /**
  * Class to represent custom data type in TOSCA definition.
@@ -68,11 +73,11 @@ public class JpaToscaDataType extends JpaToscaEntityType<ToscaDataType> implemen
     private static final long serialVersionUID = -3922690413436539164L;
 
     @ElementCollection
-    private List<JpaToscaConstraint> constraints;
+    private List<JpaToscaConstraint> constraints = new ArrayList<>();
 
     @ElementCollection
     @Lob
-    private Map<String, JpaToscaProperty> properties;
+    private Map<String, JpaToscaProperty> properties = new LinkedHashMap<>();
 
     /**
      * The Default Constructor creates a {@link JpaToscaDataType} object with a null key.
@@ -268,4 +273,29 @@ public class JpaToscaDataType extends JpaToscaEntityType<ToscaDataType> implemen
 
         return 0;
     }
+
+    /**
+     * Get the data types referenced in a data type.
+     *
+     * @return the data types referenced in a data type
+     */
+    public Collection<PfConceptKey> getReferencedDataTypes() {
+        if (properties == null) {
+            return CollectionUtils.emptyCollection();
+        }
+
+        Set<PfConceptKey> referencedDataTypes = new LinkedHashSet<>();
+
+        for (JpaToscaProperty property : properties.values()) {
+            referencedDataTypes.add(property.getType());
+
+            if (property.getEntrySchema() != null) {
+                referencedDataTypes.add(property.getEntrySchema().getType());
+            }
+        }
+
+        referencedDataTypes.removeAll(ToscaUtils.getPredefinedDataTypes());
+
+        return referencedDataTypes;
+    }
 }
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaEntityType.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaEntityType.java
index 4823efc01..6544e7221 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaEntityType.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaEntityType.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  *  Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -26,15 +26,18 @@ import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.TreeMap;
+
 import javax.persistence.AttributeOverride;
 import javax.persistence.AttributeOverrides;
 import javax.persistence.Column;
 import javax.persistence.ElementCollection;
 import javax.persistence.EmbeddedId;
 import javax.persistence.MappedSuperclass;
+
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.NonNull;
+
 import org.apache.commons.lang3.ObjectUtils;
 import org.onap.policy.common.utils.validation.ParameterValidationUtils;
 import org.onap.policy.models.base.PfAuthorative;
@@ -70,7 +73,7 @@ public class JpaToscaEntityType<T extends ToscaEntity> extends PfConcept impleme
     private PfConceptKey derivedFrom;
 
     @ElementCollection
-    private Map<String, String> metadata;
+    private Map<String, String> metadata = new TreeMap<>();
 
     @Column
     private String description;
@@ -154,7 +157,6 @@ public class JpaToscaEntityType<T extends ToscaEntity> extends PfConcept impleme
             key.setVersion(toscaEntity.getVersion());
         }
 
-
         if (toscaEntity.getDerivedFrom() != null) {
             // CHeck if the derived from field contains a name-version ID
             if (toscaEntity.getDerivedFrom().contains(":")) {
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicy.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicy.java
index 36acec018..2816df004 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicy.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicy.java
@@ -3,7 +3,7 @@
  * ONAP Policy Model
  * ================================================================================
  * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,10 +23,12 @@
 
 package org.onap.policy.models.tosca.simple.concepts;
 
+import java.util.ArrayList;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
+
 import javax.persistence.AttributeOverride;
 import javax.persistence.AttributeOverrides;
 import javax.persistence.Column;
@@ -37,9 +39,11 @@ import javax.persistence.InheritanceType;
 import javax.persistence.Lob;
 import javax.persistence.Table;
 import javax.ws.rs.core.Response;
+
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.NonNull;
+
 import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.common.utils.coder.StandardCoder;
 import org.onap.policy.common.utils.validation.ParameterValidationUtils;
@@ -87,7 +91,7 @@ public class JpaToscaPolicy extends JpaToscaEntityType<ToscaPolicy> implements P
     private Map<String, String> properties;
 
     @ElementCollection
-    private List<PfConceptKey> targets;
+    private List<PfConceptKey> targets = new ArrayList<>();
     // @formatter:on
 
     /**
@@ -186,15 +190,13 @@ public class JpaToscaPolicy extends JpaToscaEntityType<ToscaPolicy> implements P
 
         if (toscaPolicy.getType() != null) {
             type.setName(toscaPolicy.getType());
-        }
-        else {
+        } else {
             type.setName(PfKey.NULL_KEY_NAME);
         }
 
         if (toscaPolicy.getTypeVersion() != null) {
             type.setVersion(toscaPolicy.getTypeVersion());
-        }
-        else {
+        } else {
             type.setVersion(PfKey.NULL_KEY_VERSION);
         }
 
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicyType.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicyType.java
index 43d7ad633..b068beaa0 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicyType.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicyType.java
@@ -23,6 +23,7 @@
 
 package org.onap.policy.models.tosca.simple.concepts;
 
+import java.util.ArrayList;
 import java.util.Collection;
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
@@ -73,13 +74,13 @@ public class JpaToscaPolicyType extends JpaToscaEntityType<ToscaPolicyType> impl
 
     @ElementCollection
     @Lob
-    private Map<String, JpaToscaProperty> properties;
+    private Map<String, JpaToscaProperty> properties = new LinkedHashMap<>();
 
     @ElementCollection
-    private List<PfConceptKey> targets;
+    private List<PfConceptKey> targets = new ArrayList<>();
 
     @ElementCollection
-    private List<JpaToscaTrigger> triggers;
+    private List<JpaToscaTrigger> triggers = new ArrayList<>();
 
     /**
      * The Default Constructor creates a {@link JpaToscaPolicyType} object with a null key.
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicyTypes.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicyTypes.java
index 9c059b483..00a6d6b50 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicyTypes.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaPolicyTypes.java
@@ -109,6 +109,7 @@ public class JpaToscaPolicyTypes extends PfConceptContainer<JpaToscaPolicyType,
     public PfValidationResult validate(@NonNull final PfValidationResult resultIn) {
         PfValidationResult result = super.validate(resultIn);
 
+        // Check that all ancestors of this policy type exist
         for (JpaToscaPolicyType policyType : this.getConceptMap().values()) {
             ToscaUtils.getEntityTypeAncestors(this, policyType, result);
         }
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaServiceTemplate.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaServiceTemplate.java
index 786784c09..aa4f231c0 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaServiceTemplate.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaServiceTemplate.java
@@ -23,6 +23,7 @@ package org.onap.policy.models.tosca.simple.concepts;
 
 import com.google.gson.annotations.SerializedName;
 
+import java.util.Collection;
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.List;
@@ -101,7 +102,15 @@ public class JpaToscaServiceTemplate extends JpaToscaEntityType<ToscaServiceTemp
     @SerializedName("policy_types")
     private JpaToscaPolicyTypes policyTypes;
 
-    @Column
+    @OneToOne(fetch = FetchType.EAGER, cascade = CascadeType.ALL, orphanRemoval = true)
+    @JoinColumns(
+            {
+                @JoinColumn(name = "topologyTemplateParentKeyName",    referencedColumnName = "parentKeyName"),
+                @JoinColumn(name = "topologyTemplateParentKeyVersion", referencedColumnName = "parentKeyVersion"),
+                @JoinColumn(name = "topologyTemplateParentLocalName",  referencedColumnName = "parentLocalName"),
+                @JoinColumn(name = "topologyTemplateLocalName",        referencedColumnName = "localName")
+            }
+        )
     @SerializedName("topology_template")
     private JpaToscaTopologyTemplate topologyTemplate;
     // @formatter:on
@@ -281,7 +290,7 @@ public class JpaToscaServiceTemplate extends JpaToscaEntityType<ToscaServiceTemp
             return result;
         }
 
-        validateDatatypesInPolicyTypes(result);
+        validateReferencedDataTypes(result);
 
         return validatePolicyTypesInPolicies(result);
     }
@@ -339,36 +348,54 @@ public class JpaToscaServiceTemplate extends JpaToscaEntityType<ToscaServiceTemp
      * @param result the validation result object to use for the validation result
      * @return the validation result object
      */
-    private PfValidationResult validateDatatypesInPolicyTypes(final PfValidationResult result) {
+    private PfValidationResult validateReferencedDataTypes(final PfValidationResult result) {
         if (policyTypes == null) {
             return result;
         }
 
-        for (JpaToscaPolicyType policyType : policyTypes.getAll(null)) {
-            for (PfConceptKey datatypeKey : policyType.getReferencedDataTypes()) {
-                if (dataTypes == null || dataTypes.get(datatypeKey) == null) {
-                    result.addValidationMessage(
-                            new PfValidationMessage(policyType.getKey(), this.getClass(), ValidationResult.INVALID,
-                                    "data type " + datatypeKey + " referenced in policy type not found"));
-                }
+        if (dataTypes != null) {
+            for (JpaToscaDataType dataType : dataTypes.getAll(null)) {
+                validateReferencedDataTypesExists(dataType.getKey(), dataType.getReferencedDataTypes(), result);
             }
         }
 
+        for (JpaToscaPolicyType policyType : policyTypes.getAll(null)) {
+            validateReferencedDataTypesExists(policyType.getKey(), policyType.getReferencedDataTypes(), result);
+        }
+
         return result;
     }
 
     /**
+     * Validate that the referenced data types exist for a collection of data type keys.
+     *
+     * @param referencingEntityKey the key of the referencing entity
+     * @param dataTypeKeyCollection the data type key collection
+     * @param result the result of the validation
+     */
+    private void validateReferencedDataTypesExists(final PfConceptKey referencingEntityKey,
+            final Collection<PfConceptKey> dataTypeKeyCollection, final PfValidationResult result) {
+        for (PfConceptKey dataTypeKey : dataTypeKeyCollection) {
+            if (dataTypes == null || dataTypes.get(dataTypeKey) == null) {
+                result.addValidationMessage(new PfValidationMessage(referencingEntityKey, this.getClass(),
+                        ValidationResult.INVALID, "referenced data type " + dataTypeKey.getId() + " not found"));
+            }
+        }
+    }
+
+    /**
      * Validate that all policy types referenced in policies exist.
      *
      * @param result the validation result object to use for the validation result
      * @return the validation result object
      */
     private PfValidationResult validatePolicyTypesInPolicies(PfValidationResult result) {
-        if (topologyTemplate == null || topologyTemplate.getPolicies() == null) {
+        if (topologyTemplate == null || topologyTemplate.getPolicies() == null
+                || topologyTemplate.getPolicies().getConceptMap().isEmpty()) {
             return result;
         }
 
-        if (policyTypes == null) {
+        if (policyTypes == null || policyTypes.getConceptMap().isEmpty()) {
             result.addValidationMessage(new PfValidationMessage(this.getKey(), this.getClass(),
                     ValidationResult.INVALID,
                     "no policy types are defined on the service template for the policies in the topology template"));
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaTopologyTemplate.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaTopologyTemplate.java
index c8dfa5a36..176608709 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaTopologyTemplate.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaTopologyTemplate.java
@@ -30,6 +30,8 @@ import javax.persistence.Entity;
 import javax.persistence.FetchType;
 import javax.persistence.Inheritance;
 import javax.persistence.InheritanceType;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinColumns;
 import javax.persistence.OneToOne;
 import javax.persistence.Table;
 
@@ -69,7 +71,15 @@ public class JpaToscaTopologyTemplate extends PfConcept implements PfAuthorative
     @Column(name = "description")
     private String description;
 
+    // @formatter:off
     @OneToOne(fetch = FetchType.EAGER, cascade = CascadeType.ALL, orphanRemoval = true)
+    @JoinColumns(
+            {
+                @JoinColumn(name = "policyName",    referencedColumnName = "name"),
+                @JoinColumn(name = "policyVersion", referencedColumnName = "version")
+            }
+        )
+    // @formatter:on
     private JpaToscaPolicies policies;
 
     /**
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/provider/SimpleToscaProvider.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/provider/SimpleToscaProvider.java
index 508b47060..9c7d6d305 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/provider/SimpleToscaProvider.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/simple/provider/SimpleToscaProvider.java
@@ -21,9 +21,8 @@
 package org.onap.policy.models.tosca.simple.provider;
 
 import java.util.ArrayList;
-import java.util.LinkedHashMap;
+import java.util.Collection;
 import java.util.List;
-import java.util.Map;
 
 import javax.ws.rs.core.Response;
 
@@ -36,6 +35,7 @@ import org.onap.policy.models.base.PfConceptKey;
 import org.onap.policy.models.base.PfKey;
 import org.onap.policy.models.base.PfModelException;
 import org.onap.policy.models.base.PfModelRuntimeException;
+import org.onap.policy.models.base.PfValidationResult;
 import org.onap.policy.models.dao.PfDao;
 import org.onap.policy.models.tosca.simple.concepts.JpaToscaDataType;
 import org.onap.policy.models.tosca.simple.concepts.JpaToscaDataTypes;
@@ -44,7 +44,7 @@ import org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicy;
 import org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicyType;
 import org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicyTypes;
 import org.onap.policy.models.tosca.simple.concepts.JpaToscaServiceTemplate;
-import org.onap.policy.models.tosca.simple.concepts.JpaToscaTopologyTemplate;
+import org.onap.policy.models.tosca.utils.ToscaServiceTemplateUtils;
 import org.onap.policy.models.tosca.utils.ToscaUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -57,6 +57,64 @@ import org.slf4j.LoggerFactory;
 public class SimpleToscaProvider {
     private static final Logger LOGGER = LoggerFactory.getLogger(SimpleToscaProvider.class);
 
+    // Recurring string constants
+    private static final String SERVICE_TEMPLATE_NOT_FOUND_IN_DATABASE = "service template not found in database";
+    private static final String DO_NOT_EXIST = " do not exist";
+
+    /**
+     * Get Service Template.
+     *
+     * @param dao the DAO to use to access the database
+     * @return the service template
+     * @throws PfModelException on errors getting the service template
+     */
+    public JpaToscaServiceTemplate getServiceTemplate(@NonNull final PfDao dao) throws PfModelException {
+        LOGGER.debug("->getServiceTemplate");
+
+        JpaToscaServiceTemplate serviceTemplate = new SimpleToscaServiceTemplateProvider().read(dao);
+        if (serviceTemplate == null) {
+            throw new PfModelRuntimeException(Response.Status.NOT_FOUND, SERVICE_TEMPLATE_NOT_FOUND_IN_DATABASE);
+        }
+
+        LOGGER.debug("<-getServiceTemplate: serviceTemplate={}", serviceTemplate);
+        return serviceTemplate;
+    }
+
+    /**
+     * Append a service template fragment to the service template in the database.
+     *
+     * @param dao the DAO to use to access the database
+     * @param incomingServiceTemplateFragment the service template containing the definition of the entities to be
+     *        created
+     * @return the TOSCA service template in the database after the operation
+     * @throws PfModelException on errors appending a service template to the template in the database
+     */
+    public JpaToscaServiceTemplate appendToServiceTemplate(@NonNull final PfDao dao,
+            @NonNull final JpaToscaServiceTemplate incomingServiceTemplateFragment) throws PfModelException {
+        LOGGER.debug("->appendServiceTemplateFragment: incomingServiceTemplateFragment={}",
+                incomingServiceTemplateFragment);
+
+        JpaToscaServiceTemplate dbServiceTemplate = new SimpleToscaServiceTemplateProvider().read(dao);
+
+        JpaToscaServiceTemplate serviceTemplateToWrite;
+        if (dbServiceTemplate == null) {
+            serviceTemplateToWrite = incomingServiceTemplateFragment;
+        } else {
+            serviceTemplateToWrite =
+                    ToscaServiceTemplateUtils.addFragment(dbServiceTemplate, incomingServiceTemplateFragment);
+        }
+
+        PfValidationResult result = serviceTemplateToWrite.validate(new PfValidationResult());
+        if (!result.isValid()) {
+            throw new PfModelRuntimeException(Response.Status.BAD_REQUEST, result.toString());
+        }
+
+        new SimpleToscaServiceTemplateProvider().write(dao, serviceTemplateToWrite);
+
+        LOGGER.debug("<-appendServiceTemplateFragment: returnServiceTempalate={}", serviceTemplateToWrite);
+        return serviceTemplateToWrite;
+    }
+
     /**
      * Get data types.
      *
@@ -70,13 +128,34 @@ public class SimpleToscaProvider {
             throws PfModelException {
         LOGGER.debug("->getDataTypes: name={}, version={}", name, version);
 
-        // Create the structure of the TOSCA service template to contain the data type
-        JpaToscaServiceTemplate serviceTemplate = new JpaToscaServiceTemplate();
-        serviceTemplate.setDataTypes(new JpaToscaDataTypes());
+        JpaToscaServiceTemplate serviceTemplate = getServiceTemplate(dao);
+
+        if (!ToscaUtils.doDataTypesExist(serviceTemplate)) {
+            throw new PfModelRuntimeException(Response.Status.NOT_FOUND,
+                    "data types for " + name + ":" + version + DO_NOT_EXIST);
+        }
 
-        // Add the data type to the TOSCA service template
-        List<JpaToscaDataType> jpaDataTypeList = dao.getFiltered(JpaToscaDataType.class, name, version);
-        serviceTemplate.getDataTypes().getConceptMap().putAll(asConceptMap(jpaDataTypeList));
+        serviceTemplate.setPolicyTypes(null);
+        serviceTemplate.setTopologyTemplate(null);
+
+        ToscaUtils.getEntityTree(serviceTemplate.getDataTypes(), name, version);
+
+        if (!ToscaUtils.doDataTypesExist(serviceTemplate)) {
+            throw new PfModelRuntimeException(Response.Status.NOT_FOUND,
+                    "data types for " + name + ":" + version + DO_NOT_EXIST);
+        }
+
+        for (JpaToscaDataType dataType : serviceTemplate.getDataTypes().getConceptMap().values()) {
+            Collection<PfConceptKey> referencedDataTypeKeys = dataType.getReferencedDataTypes();
+
+            for (PfConceptKey referencedDataTypeKey : referencedDataTypeKeys) {
+                JpaToscaServiceTemplate dataTypeEntityTreeServiceTemplate =
+                        getDataTypes(dao, referencedDataTypeKey.getName(), referencedDataTypeKey.getVersion());
+
+                serviceTemplate =
+                        ToscaServiceTemplateUtils.addFragment(serviceTemplate, dataTypeEntityTreeServiceTemplate);
+            }
+        }
 
         LOGGER.debug("<-getDataTypes: name={}, version={}, serviceTemplate={}", name, version, serviceTemplate);
         return serviceTemplate;
@@ -86,32 +165,20 @@ public class SimpleToscaProvider {
      * Create data types.
      *
      * @param dao the DAO to use to access the database
-     * @param serviceTemplate the service template containing the definition of the data types to be created
+     * @param incomingServiceTemplate the service template containing the definition of the data types to be created
      * @return the TOSCA service template containing the created data types
      * @throws PfModelException on errors creating data types
      */
     public JpaToscaServiceTemplate createDataTypes(@NonNull final PfDao dao,
-            @NonNull final JpaToscaServiceTemplate serviceTemplate) throws PfModelException {
-        LOGGER.debug("->createDataTypes: serviceTempalate={}", serviceTemplate);
-
-        ToscaUtils.assertDataTypesExist(serviceTemplate);
-
-        for (JpaToscaDataType dataType : serviceTemplate.getDataTypes().getAll(null)) {
-            dao.create(dataType);
-        }
+            @NonNull final JpaToscaServiceTemplate incomingServiceTemplate) throws PfModelException {
+        LOGGER.debug("->createDataTypes: incomingServiceTemplate={}", incomingServiceTemplate);
 
-        // Return the created Data types
-        JpaToscaDataTypes returnDataTypes = new JpaToscaDataTypes();
+        ToscaUtils.assertDataTypesExist(incomingServiceTemplate);
 
-        for (PfConceptKey dataTypeKey : serviceTemplate.getDataTypes().getConceptMap().keySet()) {
-            returnDataTypes.getConceptMap().put(dataTypeKey, dao.get(JpaToscaDataType.class, dataTypeKey));
-        }
+        JpaToscaServiceTemplate writtenServiceTemplate = appendToServiceTemplate(dao, incomingServiceTemplate);
 
-        JpaToscaServiceTemplate returnServiceTemplate = new JpaToscaServiceTemplate();
-        returnServiceTemplate.setDataTypes(returnDataTypes);
-
-        LOGGER.debug("<-createDataTypes: returnServiceTempalate={}", returnServiceTemplate);
-        return returnServiceTemplate;
+        LOGGER.debug("<-createDataTypes: returnServiceTempalate={}", writtenServiceTemplate);
+        return writtenServiceTemplate;
     }
 
     /**
@@ -180,20 +247,33 @@ public class SimpleToscaProvider {
             throws PfModelException {
         LOGGER.debug("->getPolicyTypes: name={}, version={}", name, version);
 
-        // Create the structure of the TOSCA service template to contain the policy type
-        JpaToscaServiceTemplate serviceTemplate = new JpaToscaServiceTemplate();
-        serviceTemplate.setPolicyTypes(new JpaToscaPolicyTypes());
+        JpaToscaServiceTemplate serviceTemplate = getServiceTemplate(dao);
+
+        serviceTemplate.setDataTypes(null);
+        serviceTemplate.setTopologyTemplate(null);
+
+        if (!ToscaUtils.doPolicyTypesExist(serviceTemplate)) {
+            throw new PfModelRuntimeException(Response.Status.NOT_FOUND,
+                    "policy types for " + name + ":" + version + DO_NOT_EXIST);
+        }
+
+        ToscaUtils.getEntityTree(serviceTemplate.getPolicyTypes(), name, version);
 
-        // Add the policy type to the TOSCA service template
-        List<JpaToscaPolicyType> jpaPolicyTypeList = dao.getFiltered(JpaToscaPolicyType.class, name, version);
-        serviceTemplate.getPolicyTypes().getConceptMap().putAll(asConceptMap(jpaPolicyTypeList));
+        if (!ToscaUtils.doPolicyTypesExist(serviceTemplate)) {
+            throw new PfModelRuntimeException(Response.Status.NOT_FOUND,
+                    "policy types for " + name + ":" + version + DO_NOT_EXIST);
+        }
+
+        for (JpaToscaPolicyType policyType : serviceTemplate.getPolicyTypes().getConceptMap().values()) {
+            Collection<PfConceptKey> referencedDataTypeKeys = policyType.getReferencedDataTypes();
 
-        // Return all data types
-        // TODO: In an upcoming review, return just the data types used by the policy types on the policy type list
-        List<JpaToscaDataType> jpaDataTypeList = dao.getFiltered(JpaToscaDataType.class, null, null);
-        if (!CollectionUtils.isEmpty(jpaDataTypeList)) {
-            serviceTemplate.setDataTypes(new JpaToscaDataTypes());
-            serviceTemplate.getDataTypes().getConceptMap().putAll(asConceptMap(jpaDataTypeList));
+            for (PfConceptKey referencedDataTypeKey : referencedDataTypeKeys) {
+                JpaToscaServiceTemplate dataTypeEntityTreeServiceTemplate =
+                        getDataTypes(dao, referencedDataTypeKey.getName(), referencedDataTypeKey.getVersion());
+
+                serviceTemplate =
+                        ToscaServiceTemplateUtils.addFragment(serviceTemplate, dataTypeEntityTreeServiceTemplate);
+            }
         }
 
         LOGGER.debug("<-getPolicyTypes: name={}, version={}, serviceTemplate={}", name, version, serviceTemplate);
@@ -204,37 +284,20 @@ public class SimpleToscaProvider {
      * Create policy types.
      *
      * @param dao the DAO to use to access the database
-     * @param serviceTemplate the service template containing the definition of the policy types to be created
+     * @param incomingServiceTemplate the service template containing the definition of the policy types to be created
      * @return the TOSCA service template containing the created policy types
      * @throws PfModelException on errors creating policy types
      */
     public JpaToscaServiceTemplate createPolicyTypes(@NonNull final PfDao dao,
-            @NonNull final JpaToscaServiceTemplate serviceTemplate) throws PfModelException {
-        LOGGER.debug("->createPolicyTypes: serviceTempalate={}", serviceTemplate);
-
-        ToscaUtils.assertPolicyTypesExist(serviceTemplate);
+            @NonNull final JpaToscaServiceTemplate incomingServiceTemplate) throws PfModelException {
+        LOGGER.debug("->createPolicyTypes: serviceTempalate={}", incomingServiceTemplate);
 
-        // Create the data types on the policy type
-        if (ToscaUtils.doDataTypesExist(serviceTemplate)) {
-            createDataTypes(dao, serviceTemplate);
-        }
+        ToscaUtils.assertPolicyTypesExist(incomingServiceTemplate);
 
-        for (JpaToscaPolicyType policyType : serviceTemplate.getPolicyTypes().getAll(null)) {
-            dao.create(policyType);
-        }
-
-        // Return the created policy types
-        JpaToscaPolicyTypes returnPolicyTypes = new JpaToscaPolicyTypes();
+        JpaToscaServiceTemplate writtenServiceTemplate = appendToServiceTemplate(dao, incomingServiceTemplate);
 
-        for (PfConceptKey policyTypeKey : serviceTemplate.getPolicyTypes().getConceptMap().keySet()) {
-            returnPolicyTypes.getConceptMap().put(policyTypeKey, dao.get(JpaToscaPolicyType.class, policyTypeKey));
-        }
-
-        JpaToscaServiceTemplate returnServiceTemplate = new JpaToscaServiceTemplate();
-        returnServiceTemplate.setPolicyTypes(returnPolicyTypes);
-
-        LOGGER.debug("<-createPolicyTypes: returnServiceTempalate={}", returnServiceTemplate);
-        return returnServiceTemplate;
+        LOGGER.debug("<-createPolicyTypes: returnServiceTempalate={}", writtenServiceTemplate);
+        return writtenServiceTemplate;
     }
 
     /**
@@ -309,14 +372,29 @@ public class SimpleToscaProvider {
             throws PfModelException {
         LOGGER.debug("->getPolicies: name={}, version={}", name, version);
 
-        // Create the structure of the TOSCA service template to contain the policy type
-        JpaToscaServiceTemplate serviceTemplate = new JpaToscaServiceTemplate();
-        serviceTemplate.setTopologyTemplate(new JpaToscaTopologyTemplate());
-        serviceTemplate.getTopologyTemplate().setPolicies(new JpaToscaPolicies());
+        JpaToscaServiceTemplate serviceTemplate = getServiceTemplate(dao);
+
+        if (!ToscaUtils.doPoliciesExist(serviceTemplate)) {
+            throw new PfModelRuntimeException(Response.Status.NOT_FOUND,
+                    "policies for " + name + ":" + version + DO_NOT_EXIST);
+        }
+
+        ToscaUtils.getEntityTree(serviceTemplate.getTopologyTemplate().getPolicies(), name, version);
+
+        if (!ToscaUtils.doPoliciesExist(serviceTemplate)) {
+            throw new PfModelRuntimeException(Response.Status.NOT_FOUND,
+                    "policies for " + name + ":" + version + DO_NOT_EXIST);
+        }
 
-        // Add the policy type to the TOSCA service template
-        List<JpaToscaPolicy> jpaPolicyList = dao.getFiltered(JpaToscaPolicy.class, name, version);
-        serviceTemplate.getTopologyTemplate().getPolicies().getConceptMap().putAll(asConceptMap(jpaPolicyList));
+        for (JpaToscaPolicy policy : serviceTemplate.getTopologyTemplate().getPolicies().getConceptMap().values()) {
+            if (policy.getDerivedFrom() != null) {
+                JpaToscaServiceTemplate referencedEntitiesServiceTemplate =
+                        getPolicyTypes(dao, policy.getDerivedFrom().getName(), policy.getDerivedFrom().getVersion());
+
+                serviceTemplate =
+                        ToscaServiceTemplateUtils.addFragment(serviceTemplate, referencedEntitiesServiceTemplate);
+            }
+        }
 
         LOGGER.debug("<-getPolicies: name={}, version={}, serviceTemplate={}", name, version, serviceTemplate);
         return serviceTemplate;
@@ -326,33 +404,20 @@ public class SimpleToscaProvider {
      * Create policies.
      *
      * @param dao the DAO to use to access the database
-     * @param serviceTemplate the service template containing the definitions of the new policies to be created.
+     * @param incomingServiceTemplate the service template containing the definitions of the new policies to be created.
      * @return the TOSCA service template containing the policy types that were created
      * @throws PfModelException on errors creating policies
      */
     public JpaToscaServiceTemplate createPolicies(@NonNull final PfDao dao,
-            @NonNull final JpaToscaServiceTemplate serviceTemplate) throws PfModelException {
-        LOGGER.debug("->createPolicies: serviceTempalate={}", serviceTemplate);
-
-        ToscaUtils.assertPoliciesExist(serviceTemplate);
-
-        for (JpaToscaPolicy policy : serviceTemplate.getTopologyTemplate().getPolicies().getAll(null)) {
-            verifyPolicyTypeForPolicy(dao, policy);
-            dao.create(policy);
-        }
-
-        // Return the created policy types
-        JpaToscaPolicies returnPolicies = new JpaToscaPolicies();
-        returnPolicies.setKey(serviceTemplate.getTopologyTemplate().getPolicies().getKey());
+            @NonNull final JpaToscaServiceTemplate incomingServiceTemplate) throws PfModelException {
+        LOGGER.debug("->createPolicies: incomingServiceTemplate={}", incomingServiceTemplate);
 
-        for (PfConceptKey policyKey : serviceTemplate.getTopologyTemplate().getPolicies().getConceptMap().keySet()) {
-            returnPolicies.getConceptMap().put(policyKey, dao.get(JpaToscaPolicy.class, policyKey));
-        }
+        ToscaUtils.assertPoliciesExist(incomingServiceTemplate);
 
-        serviceTemplate.getTopologyTemplate().setPolicies(returnPolicies);
+        JpaToscaServiceTemplate writtenServiceTemplate = appendToServiceTemplate(dao, incomingServiceTemplate);
 
-        LOGGER.debug("<-createPolicies: serviceTemplate={}", serviceTemplate);
-        return serviceTemplate;
+        LOGGER.debug("<-createPolicies: serviceTemplate={}", writtenServiceTemplate);
+        return writtenServiceTemplate;
     }
 
     /**
@@ -409,21 +474,6 @@ public class SimpleToscaProvider {
     }
 
     /**
-     * Convert a list of concepts to a map of concepts.
-     *
-     * @param conceptList the concept list
-     * @return the concept map
-     */
-    private <T extends PfConcept> Map<PfConceptKey, T> asConceptMap(List<T> conceptList) {
-        Map<PfConceptKey, T> conceptMap = new LinkedHashMap<>();
-        for (T concept : conceptList) {
-            conceptMap.put((PfConceptKey) concept.getKey(), concept);
-        }
-
-        return conceptMap;
-    }
-
-    /**
      * Verify the policy type for a policy exists.
      *
      * @param dao the DAO to use to access policy types in the database
@@ -447,7 +497,6 @@ public class SimpleToscaProvider {
         if (policyType == null) {
             String errorMessage =
                     "policy type " + policyTypeKey.getId() + " for policy " + policy.getId() + " does not exist";
-            LOGGER.warn(errorMessage);
             throw new PfModelRuntimeException(Response.Status.BAD_REQUEST, errorMessage);
         }
     }
@@ -476,8 +525,7 @@ public class SimpleToscaProvider {
 
         // We should have one and only one returned entry
         if (filterdPolicyTypeList.size() != 1) {
-            String errorMessage = "search for lates policy type " + policyTypeName + " returned more than one entry";
-            LOGGER.warn(errorMessage);
+            String errorMessage = "search for latest policy type " + policyTypeName + " returned more than one entry";
             throw new PfModelRuntimeException(Response.Status.BAD_REQUEST, errorMessage);
         }
 
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/utils/ToscaUtils.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/utils/ToscaUtils.java
index 390692277..cc0431946 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/utils/ToscaUtils.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/utils/ToscaUtils.java
@@ -52,14 +52,18 @@ public final class ToscaUtils {
 
     // @formatter:off
     private static final Set<PfConceptKey> PREDEFINED_TOSCA_DATA_TYPES = Set.of(
-            new PfConceptKey("string",    PfKey.NULL_KEY_VERSION),
-            new PfConceptKey("integer",   PfKey.NULL_KEY_VERSION),
-            new PfConceptKey("float",     PfKey.NULL_KEY_VERSION),
-            new PfConceptKey("boolean",   PfKey.NULL_KEY_VERSION),
-            new PfConceptKey("timestamp", PfKey.NULL_KEY_VERSION),
-            new PfConceptKey("null",      PfKey.NULL_KEY_VERSION),
-            new PfConceptKey("list",      PfKey.NULL_KEY_VERSION),
-            new PfConceptKey("map",       PfKey.NULL_KEY_VERSION)
+            new PfConceptKey("string",                       PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("integer",                      PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("float",                        PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("boolean",                      PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("timestamp",                    PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("null",                         PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("list",                         PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("map",                          PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("scalar-unit.size",             PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("scalar-unit.time",             PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("scalar-unit.frequency",        PfKey.NULL_KEY_VERSION),
+            new PfConceptKey("tosca.datatypes.TimeInterval", PfKey.NULL_KEY_VERSION)
         );
     // @formatter:on
 
@@ -242,17 +246,18 @@ public final class ToscaUtils {
      * Get the entity tree from a concept container for a given entity key.
      *
      * @param entityTypes the concept container containing entity types
-     * @param searchKey the key to search for
+     * @param entityName the name of the entity
+     * @param entityVersion the version of the entity
      */
     public static void getEntityTree(
             @NonNull final PfConceptContainer<? extends PfConcept, ? extends PfNameVersion> entityTypes,
-            @NonNull final PfConceptKey searchKey) {
+            final String entityName, final String entityVersion) {
 
         PfValidationResult result = new PfValidationResult();
 
         @SuppressWarnings("unchecked")
         Set<JpaToscaEntityType<?>> filteredEntitySet =
-                (Set<JpaToscaEntityType<?>>) entityTypes.getAll(searchKey.getName(), searchKey.getVersion());
+                (Set<JpaToscaEntityType<?>>) entityTypes.getAll(entityName, entityVersion);
         for (JpaToscaEntityType<?> filteredEntityType : filteredEntitySet) {
             filteredEntitySet.addAll(ToscaUtils.getEntityTypeAncestors(entityTypes, filteredEntityType, result));
         }
diff --git a/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProviderPolicyTest.java b/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProviderPolicyTest.java
index 36c66546a..8b79374bc 100644
--- a/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProviderPolicyTest.java
+++ b/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProviderPolicyTest.java
@@ -156,8 +156,7 @@ public class AuthorativeToscaProviderPolicyTest {
         assertEquals(1, gotPolicyList.size());
         assertEquals(0, beforePolicy.compareNameVersion(beforePolicy, gotPolicyList.get(0)));
 
-        gotPolicyList = new AuthorativeToscaProvider().getPolicyList(pfDao, "Nonexistant", VERSION_100);
-        assertEquals(0, gotPolicyList.size());
+        assertTrue(new AuthorativeToscaProvider().getPolicyList(pfDao, "Nonexistant", VERSION_100).isEmpty());
     }
 
     @Test
@@ -380,10 +379,11 @@ public class AuthorativeToscaProviderPolicyTest {
         assertEquals(0, beforePolicy.compareNameVersion(beforePolicy, createdPolicy));
         assertTrue(beforePolicy.getType().equals(deletedPolicy.getType()));
 
-        ToscaServiceTemplate gotServiceTemplate =
-                new AuthorativeToscaProvider().getPolicies(pfDao, policyKey.getName(), policyKey.getVersion());
-
-        assertTrue(gotServiceTemplate.getToscaTopologyTemplate().getPolicies().isEmpty());
+        // @formatter:off
+        assertThatThrownBy(
+            () -> new AuthorativeToscaProvider().getPolicies(pfDao, policyKey.getName(), policyKey.getVersion()))
+                    .hasMessageMatching("policies for onap.restart.tca:1.0.0 do not exist");
+        // @formatter:on
     }
 
     @Test
diff --git a/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProviderPolicyTypeTest.java b/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProviderPolicyTypeTest.java
index c41f5e1f4..ae350bd90 100644
--- a/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProviderPolicyTypeTest.java
+++ b/models-tosca/src/test/java/org/onap/policy/models/tosca/authorative/provider/AuthorativeToscaProviderPolicyTypeTest.java
@@ -58,8 +58,8 @@ import org.yaml.snakeyaml.Yaml;
  */
 public class AuthorativeToscaProviderPolicyTypeTest {
     private static final String VERSION = "version";
-    private static final String POLICY_AFFINITY_VERSION0 = "onap.policies.NoVersion:0.0.0";
-    private static final String POLICY_AFFINITY = "onap.policies.NoVersion";
+    private static final String POLICY_NO_VERSION_VERSION0 = "onap.policies.NoVersion:0.0.0";
+    private static final String POLICY_NO_VERSION = "onap.policies.NoVersion";
     private static final String MISSING_POLICY_TYPES = "no policy types specified on service template";
     private static final String DAO_IS_NULL = "^dao is marked .*on.*ull but is null$";
     private static final String VERSION_000 = "0.0.0";
@@ -135,7 +135,7 @@ public class AuthorativeToscaProviderPolicyTypeTest {
         ToscaServiceTemplate createdServiceTemplate =
                 new AuthorativeToscaProvider().createPolicyTypes(pfDao, toscaServiceTemplate);
 
-        PfConceptKey policyTypeKey = new PfConceptKey(POLICY_AFFINITY_VERSION0);
+        PfConceptKey policyTypeKey = new PfConceptKey(POLICY_NO_VERSION_VERSION0);
 
         ToscaPolicyType beforePolicyType = toscaServiceTemplate.getPolicyTypes().get(policyTypeKey.getName());
         ToscaPolicyType createdPolicyType = createdServiceTemplate.getPolicyTypes().get(policyTypeKey.getName());
@@ -150,21 +150,26 @@ public class AuthorativeToscaProviderPolicyTypeTest {
         assertEquals(0, ObjectUtils.compare(beforePolicyType.getDescription(), createdPolicyType.getDescription()));
 
         List<ToscaPolicyType> gotPolicyTypeList =
-                new AuthorativeToscaProvider().getPolicyTypeList(pfDao, POLICY_AFFINITY, VERSION_000);
-        assertEquals(1, gotPolicyTypeList.size());
+                new AuthorativeToscaProvider().getPolicyTypeList(pfDao, POLICY_NO_VERSION, VERSION_000);
+        assertEquals(2, gotPolicyTypeList.size());
         assertEquals(true, beforePolicyType.getName().equals(gotPolicyType.getName()));
 
-        gotPolicyTypeList = new AuthorativeToscaProvider().getPolicyTypeList(pfDao, POLICY_AFFINITY, null);
-        assertEquals(1, gotPolicyTypeList.size());
+        gotPolicyTypeList = new AuthorativeToscaProvider().getPolicyTypeList(pfDao, POLICY_NO_VERSION, null);
+        assertEquals(2, gotPolicyTypeList.size());
         assertEquals(true, beforePolicyType.getName().equals(gotPolicyType.getName()));
 
         gotPolicyTypeList = new AuthorativeToscaProvider().getPolicyTypeList(pfDao, null, null);
-        assertEquals(1, gotPolicyTypeList.size());
+        assertEquals(2, gotPolicyTypeList.size());
         assertEquals(true, beforePolicyType.getName().equals(gotPolicyType.getName()));
 
         gotPolicyTypeList = new AuthorativeToscaProvider().getPolicyTypeList(pfDao, null, VERSION_000);
-        assertEquals(1, gotPolicyTypeList.size());
+        assertEquals(2, gotPolicyTypeList.size());
         assertEquals(true, beforePolicyType.getName().equals(gotPolicyType.getName()));
+
+        assertThatThrownBy(() -> new AuthorativeToscaProvider().getPolicyTypeList(new DefaultPfDao(), POLICY_NO_VERSION,
+                VERSION_000)).hasMessageContaining("Policy Framework DAO has not been initialized");
+
+        assertTrue(new AuthorativeToscaProvider().getPolicyTypeList(pfDao, "i.dont.Exist", VERSION_000).isEmpty());
     }
 
     @Test
@@ -193,13 +198,21 @@ public class AuthorativeToscaProviderPolicyTypeTest {
             new AuthorativeToscaProvider().getFilteredPolicyTypeList(pfDao, null);
         }).hasMessageMatching("^filter is marked .*on.*ull but is null$");
 
+        assertThatThrownBy(() -> new AuthorativeToscaProvider().getFilteredPolicyTypeList(new DefaultPfDao(),
+                ToscaPolicyTypeFilter.builder().name("i.dont.Exist").build()))
+                        .hasMessageContaining("Policy Framework DAO has not been initialized");
+
+        assertTrue(new AuthorativeToscaProvider()
+                .getFilteredPolicyTypeList(pfDao, ToscaPolicyTypeFilter.builder().name("i.dont.Exist").build())
+                .isEmpty());
+
         ToscaServiceTemplate toscaServiceTemplate = standardCoder.decode(yamlAsJsonString, ToscaServiceTemplate.class);
 
         assertNotNull(toscaServiceTemplate);
         ToscaServiceTemplate createdServiceTemplate =
                 new AuthorativeToscaProvider().createPolicyTypes(pfDao, toscaServiceTemplate);
 
-        PfConceptKey policyTypeKey = new PfConceptKey(POLICY_AFFINITY_VERSION0);
+        PfConceptKey policyTypeKey = new PfConceptKey(POLICY_NO_VERSION_VERSION0);
 
         ToscaPolicyType beforePolicyType = toscaServiceTemplate.getPolicyTypes().get(policyTypeKey.getName());
         ToscaPolicyType createdPolicyType = createdServiceTemplate.getPolicyTypes().get(policyTypeKey.getName());
@@ -228,13 +241,13 @@ public class AuthorativeToscaProviderPolicyTypeTest {
         assertEquals(0, ObjectUtils.compare(beforePolicyType.getDescription(), gotPolicyType.getDescription()));
 
         List<ToscaPolicyType> gotPolicyTypeList =
-                new AuthorativeToscaProvider().getPolicyTypeList(pfDao, POLICY_AFFINITY, VERSION_000);
-        assertEquals(1, gotPolicyTypeList.size());
+                new AuthorativeToscaProvider().getPolicyTypeList(pfDao, POLICY_NO_VERSION, VERSION_000);
+        assertEquals(2, gotPolicyTypeList.size());
         assertEquals(true, beforePolicyType.getName().equals(gotPolicyType.getName()));
 
         gotPolicyTypeList = new AuthorativeToscaProvider().getFilteredPolicyTypeList(pfDao,
                 ToscaPolicyTypeFilter.builder().build());
-        assertEquals(1, gotPolicyTypeList.size());
+        assertEquals(2, gotPolicyTypeList.size());
         assertEquals(true, beforePolicyType.getName().equals(gotPolicyType.getName()));
 
         gotPolicyTypeList = new AuthorativeToscaProvider().getFilteredPolicyTypeList(pfDao,
@@ -249,7 +262,7 @@ public class AuthorativeToscaProviderPolicyTypeTest {
 
         gotPolicyTypeList = new AuthorativeToscaProvider().getFilteredPolicyTypeList(pfDao,
                 ToscaPolicyTypeFilter.builder().version("1.0.0").build());
-        assertEquals(0, gotPolicyTypeList.size());
+        assertEquals(1, gotPolicyTypeList.size());
         assertEquals(true, beforePolicyType.getName().equals(gotPolicyType.getName()));
     }
 
@@ -283,7 +296,7 @@ public class AuthorativeToscaProviderPolicyTypeTest {
         ToscaServiceTemplate createdServiceTemplate =
                 new AuthorativeToscaProvider().createPolicyTypes(pfDao, toscaServiceTemplate);
 
-        PfConceptKey policyTypeKey = new PfConceptKey(POLICY_AFFINITY_VERSION0);
+        PfConceptKey policyTypeKey = new PfConceptKey(POLICY_NO_VERSION_VERSION0);
 
         ToscaPolicyType beforePolicyType = toscaServiceTemplate.getPolicyTypes().get(policyTypeKey.getName());
         ToscaPolicyType createdPolicyType = createdServiceTemplate.getPolicyTypes().get(policyTypeKey.getName());
@@ -315,7 +328,7 @@ public class AuthorativeToscaProviderPolicyTypeTest {
         ToscaServiceTemplate createdServiceTemplate =
                 new AuthorativeToscaProvider().createPolicyTypes(pfDao, toscaServiceTemplate);
 
-        PfConceptKey policyTypeKey = new PfConceptKey(POLICY_AFFINITY_VERSION0);
+        PfConceptKey policyTypeKey = new PfConceptKey(POLICY_NO_VERSION_VERSION0);
 
         ToscaPolicyType beforePolicyType = toscaServiceTemplate.getPolicyTypes().get(policyTypeKey.getName());
         ToscaPolicyType createdPolicyType = createdServiceTemplate.getPolicyTypes().get(policyTypeKey.getName());
@@ -366,7 +379,7 @@ public class AuthorativeToscaProviderPolicyTypeTest {
         ToscaServiceTemplate createdServiceTemplate =
                 new AuthorativeToscaProvider().createPolicyTypes(pfDao, toscaServiceTemplate);
 
-        PfConceptKey policyTypeKey = new PfConceptKey(POLICY_AFFINITY_VERSION0);
+        PfConceptKey policyTypeKey = new PfConceptKey(POLICY_NO_VERSION_VERSION0);
 
         ToscaPolicyType beforePolicyType = toscaServiceTemplate.getPolicyTypes().get(policyTypeKey.getName());
         ToscaPolicyType createdPolicyType = createdServiceTemplate.getPolicyTypes().get(policyTypeKey.getName());
@@ -380,10 +393,9 @@ public class AuthorativeToscaProviderPolicyTypeTest {
         assertEquals(true, beforePolicyType.getName().equals(deletedPolicy.getName()));
         assertEquals(0, ObjectUtils.compare(beforePolicyType.getDescription(), deletedPolicy.getDescription()));
 
-        ToscaServiceTemplate gotServiceTemplate = new AuthorativeToscaProvider().getPolicyTypes(pfDao,
-                policyTypeKey.getName(), policyTypeKey.getVersion());
-
-        assertTrue(gotServiceTemplate.getPolicyTypes().isEmpty());
+        assertThatThrownBy(() -> {
+            new AuthorativeToscaProvider().getPolicyTypes(pfDao, policyTypeKey.getName(), policyTypeKey.getVersion());
+        }).hasMessage("policy types for onap.policies.NoVersion:0.0.0 do not exist");
     }
 
     @Test
diff --git a/models-tosca/src/test/java/org/onap/policy/models/tosca/legacy/mapping/LegacyGuardPolicyMapperTest.java b/models-tosca/src/test/java/org/onap/policy/models/tosca/legacy/mapping/LegacyGuardPolicyMapperTest.java
index 6d32c6d0b..62c088c83 100644
--- a/models-tosca/src/test/java/org/onap/policy/models/tosca/legacy/mapping/LegacyGuardPolicyMapperTest.java
+++ b/models-tosca/src/test/java/org/onap/policy/models/tosca/legacy/mapping/LegacyGuardPolicyMapperTest.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,6 +25,7 @@ import static org.junit.Assert.assertEquals;
 
 import java.util.LinkedHashMap;
 import java.util.Map;
+
 import org.junit.Test;
 import org.onap.policy.models.base.PfConceptKey;
 import org.onap.policy.models.tosca.legacy.concepts.LegacyGuardPolicyOutput;
@@ -49,10 +50,6 @@ public class LegacyGuardPolicyMapperTest {
         JpaToscaPolicy policy = new JpaToscaPolicy(new PfConceptKey("PolicyName", "2.0.0"));
         serviceTemplate.getTopologyTemplate().getPolicies().getConceptMap().put(policy.getKey(), policy);
 
-        assertThatThrownBy(() -> {
-            new LegacyGuardPolicyMapper().fromToscaServiceTemplate(serviceTemplate);
-        }).hasMessageContaining("no metadata defined on TOSCA policy");
-
         policy.setMetadata(new LinkedHashMap<>());
         assertThatThrownBy(() -> {
             new LegacyGuardPolicyMapper().fromToscaServiceTemplate(serviceTemplate);
diff --git a/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaDataTypeTest.java b/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaDataTypeTest.java
index 499cf72fb..d205794de 100644
--- a/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaDataTypeTest.java
+++ b/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaDataTypeTest.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- *  Copyright (C) 2019=-2020 Nordix Foundation.
+ *  Copyright (C) 2019-2020 Nordix Foundation.
  *  Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -34,13 +34,14 @@ import java.util.Map;
 
 import org.junit.Test;
 import org.onap.policy.models.base.PfConceptKey;
+import org.onap.policy.models.base.PfKey;
 import org.onap.policy.models.base.PfReferenceKey;
 import org.onap.policy.models.base.PfValidationResult;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaConstraint;
 import org.onap.policy.models.tosca.authorative.concepts.ToscaDataType;
 
 /**
- * DAO test for ToscaDatatype.
+ * DAO test for JpaToscaDatatype.
  *
  * @author Liam Fallon (liam.fallon@est.tech)
  */
@@ -140,4 +141,53 @@ public class JpaToscaDataTypeTest {
         ToscaDataType datOut = tdta.toAuthorative();
         assertNotNull(datOut);
     }
+
+    @Test
+    public void testGetReferencedDataTypes() {
+        JpaToscaDataType dt0 = new JpaToscaDataType(new PfConceptKey("dt0", "0.0.1"));
+
+        assertTrue(dt0.getReferencedDataTypes().isEmpty());
+
+        dt0.setProperties(new LinkedHashMap<>());
+        assertTrue(dt0.getReferencedDataTypes().isEmpty());
+
+        JpaToscaProperty prop0 = new JpaToscaProperty(new PfReferenceKey(dt0.getKey(), "prop0"));
+        prop0.setType(new PfConceptKey("string", PfKey.NULL_KEY_VERSION));
+        assertTrue(prop0.validate(new PfValidationResult()).isValid());
+
+        dt0.getProperties().put(prop0.getKey().getLocalName(), prop0);
+        assertTrue(dt0.getReferencedDataTypes().isEmpty());
+
+        JpaToscaProperty prop1 = new JpaToscaProperty(new PfReferenceKey(dt0.getKey(), "prop1"));
+        prop1.setType(new PfConceptKey("the.property.Type0", "0.0.1"));
+        assertTrue(prop1.validate(new PfValidationResult()).isValid());
+
+        dt0.getProperties().put(prop1.getKey().getLocalName(), prop1);
+        assertEquals(1, dt0.getReferencedDataTypes().size());
+
+        JpaToscaProperty prop2 = new JpaToscaProperty(new PfReferenceKey(dt0.getKey(), "prop2"));
+        prop2.setType(new PfConceptKey("the.property.Type0", "0.0.1"));
+        assertTrue(prop2.validate(new PfValidationResult()).isValid());
+
+        dt0.getProperties().put(prop2.getKey().getLocalName(), prop2);
+        assertEquals(1, dt0.getReferencedDataTypes().size());
+
+        JpaToscaProperty prop3 = new JpaToscaProperty(new PfReferenceKey(dt0.getKey(), "prop4"));
+        prop3.setType(new PfConceptKey("the.property.Type1", "0.0.1"));
+        prop3.setEntrySchema(new JpaToscaEntrySchema());
+        prop3.getEntrySchema().setType(new PfConceptKey("the.property.Type3", "0.0.1"));
+        assertTrue(prop3.validate(new PfValidationResult()).isValid());
+
+        dt0.getProperties().put(prop3.getKey().getLocalName(), prop3);
+        assertEquals(3, dt0.getReferencedDataTypes().size());
+
+        JpaToscaProperty prop4 = new JpaToscaProperty(new PfReferenceKey(dt0.getKey(), "prop4"));
+        prop4.setType(new PfConceptKey("the.property.Type1", "0.0.1"));
+        prop4.setEntrySchema(new JpaToscaEntrySchema());
+        prop4.getEntrySchema().setType(new PfConceptKey("the.property.Type2", "0.0.1"));
+        assertTrue(prop4.validate(new PfValidationResult()).isValid());
+
+        dt0.getProperties().put(prop4.getKey().getLocalName(), prop4);
+        assertEquals(3, dt0.getReferencedDataTypes().size());
+    }
 }
diff --git a/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaServiceTemplateTest.java b/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaServiceTemplateTest.java
index 95c51e912..5cbec008b 100644
--- a/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaServiceTemplateTest.java
+++ b/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/concepts/JpaToscaServiceTemplateTest.java
@@ -21,6 +21,7 @@
 
 package org.onap.policy.models.tosca.simple.concepts;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
@@ -135,5 +136,101 @@ public class JpaToscaServiceTemplateTest {
         assertTrue(tst.validate(new PfValidationResult()).isValid());
 
         assertThatThrownBy(() -> tst.validate(null)).hasMessageMatching("resultIn is marked .*on.*ull but is null");
+
+        tst.setToscaDefinitionsVersion(null);
+        PfValidationResult result = tst.validate(new PfValidationResult());
+        assertThat(result.toString()).contains("service template tosca definitions version may not be null");
+
+        tst.setToscaDefinitionsVersion(JpaToscaServiceTemplate.DEFAULT_TOSCA_DEFINTIONS_VERISON);
+        tst.setDataTypes(null);
+        result = tst.validate(new PfValidationResult());
+        assertTrue(result.isOk());
+
+        JpaToscaPolicyType pt0 = new JpaToscaPolicyType(new PfConceptKey("pt0:0.0.1"));
+        tst.getPolicyTypes().getConceptMap().put(pt0.getKey(), pt0);
+        result = tst.validate(new PfValidationResult());
+        assertTrue(result.isOk());
+
+        JpaToscaDataType dt0 = new JpaToscaDataType(new PfConceptKey("dt0:0.0.1"));
+        JpaToscaProperty prop0 = new JpaToscaProperty(new PfReferenceKey(pt0.getKey(), "prop0"));
+        prop0.setType(dt0.getKey());
+        pt0.getProperties().put(prop0.getKey().getLocalName(), prop0);
+        result = tst.validate(new PfValidationResult());
+        assertFalse(result.isOk());
+        assertThat(result.toString()).contains("referenced data type dt0:0.0.1 not found");
+
+        tst.setDataTypes(null);
+        result = tst.validate(new PfValidationResult());
+        assertFalse(result.isOk());
+        assertThat(result.toString()).contains("referenced data type dt0:0.0.1 not found");
+
+        tst.setDataTypes(new JpaToscaDataTypes());
+        result = tst.validate(new PfValidationResult());
+        assertFalse(result.isOk());
+        assertThat(result.toString()).contains("referenced data type dt0:0.0.1 not found");
+
+        tst.getDataTypes().getConceptMap().put(dt0.getKey(), dt0);
+        result = tst.validate(new PfValidationResult());
+        assertTrue(result.isOk());
+
+        tst.setTopologyTemplate(null);
+        result = tst.validate(new PfValidationResult());
+        assertTrue(result.isOk());
+
+        tst.setTopologyTemplate(new JpaToscaTopologyTemplate());
+        result = tst.validate(new PfValidationResult());
+        assertTrue(result.isOk());
+
+        tst.getTopologyTemplate().setPolicies(new JpaToscaPolicies());
+        result = tst.validate(new PfValidationResult());
+        assertTrue(result.isOk());
+
+        tst.setPolicyTypes(null);
+        result = tst.validate(new PfValidationResult());
+        assertTrue(result.isOk());
+
+        JpaToscaPolicy pol0 = new JpaToscaPolicy(new PfConceptKey("pol0:0.0.1"));
+        tst.getTopologyTemplate().getPolicies().getConceptMap().put(pol0.getKey(), pol0);
+        result = tst.validate(new PfValidationResult());
+        assertFalse(result.isOk());
+        assertThat(result.toString()).contains("type is null or a null key");
+
+        pol0.setType(new PfConceptKey("i.dont.Exist:0.0.1"));
+        result = tst.validate(new PfValidationResult());
+        assertFalse(result.isOk());
+        assertThat(result.toString()).contains(
+                "no policy types are defined on the service template for the policies in the topology template");
+
+        tst.setPolicyTypes(policyTypes);
+        result = tst.validate(new PfValidationResult());
+        assertFalse(result.isOk());
+        assertThat(result.toString()).contains("policy type i.dont.Exist:0.0.1 referenced in policy not found");
+
+        pol0.setType(dt0.getKey());
+        result = tst.validate(new PfValidationResult());
+        assertFalse(result.isOk());
+        assertThat(result.toString()).contains("policy type dt0:0.0.1 referenced in policy not found");
+
+        pol0.setType(pt0.getKey());
+        result = tst.validate(new PfValidationResult());
+        assertTrue(result.isOk());
+
+        tst.setPolicyTypes(null);
+        result = tst.validate(new PfValidationResult());
+        assertFalse(result.isOk());
+        assertThat(result.toString()).contains(
+                "no policy types are defined on the service template for the policies in the topology template");
+
+        tst.setPolicyTypes(policyTypes);
+        pol0.setType(pt0.getKey());
+        result = tst.validate(new PfValidationResult());
+        assertTrue(result.isOk());
+
+        tst.setPolicyTypes(new JpaToscaPolicyTypes());
+        result = tst.validate(new PfValidationResult());
+        assertFalse(result.isOk());
+        assertThat(result.toString()).contains(
+                "no policy types are defined on the service template for the policies in the topology template");
+
     }
 }
diff --git a/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/provider/SimpleToscaProviderTest.java b/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/provider/SimpleToscaProviderTest.java
index 03c7f9b1b..f34c0c869 100644
--- a/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/provider/SimpleToscaProviderTest.java
+++ b/models-tosca/src/test/java/org/onap/policy/models/tosca/simple/provider/SimpleToscaProviderTest.java
@@ -24,7 +24,6 @@ package org.onap.policy.models.tosca.simple.provider;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
 
 import java.util.Properties;
 
@@ -59,6 +58,7 @@ import org.yaml.snakeyaml.Yaml;
  */
 public class SimpleToscaProviderTest {
     private static final String TEMPLATE_IS_NULL = "^serviceTemplate is marked .*on.*ull but is null$";
+    private static final String INCOMING_TEMPLATE_IS_NULL = "^incomingServiceTemplate is marked .*on.*ull but is null$";
     private static final String VCPE_INPUT_JSON = "policies/vCPE.policy.monitoring.input.tosca.json";
     private static final String DAO_IS_NULL = "^dao is marked .*on.*ull but is null$";
 
@@ -140,10 +140,8 @@ public class SimpleToscaProviderTest {
         assertEquals(dataType0, deletedServiceTemplate.getDataTypes().get(dataType0Key));
         assertEquals("Updated Description", deletedServiceTemplate.getDataTypes().get(dataType0Key).getDescription());
 
-        JpaToscaServiceTemplate doesNotExistServiceTemplate =
-                new SimpleToscaProvider().deleteDataType(pfDao, dataType0Key);
-
-        assertEquals(null, doesNotExistServiceTemplate.getDataTypes().get(dataType0Key));
+        assertThatThrownBy(() -> new SimpleToscaProvider().deleteDataType(pfDao, dataType0Key))
+                .hasMessage("data types for DataType0:0.0.1 do not exist");
     }
 
     @Test
@@ -191,10 +189,8 @@ public class SimpleToscaProviderTest {
         assertEquals("Updated Description",
                 deletedServiceTemplate.getPolicyTypes().get(policyType0Key).getDescription());
 
-        JpaToscaServiceTemplate doesNotExistServiceTemplate =
-                new SimpleToscaProvider().deletePolicyType(pfDao, policyType0Key);
-
-        assertEquals(null, doesNotExistServiceTemplate.getPolicyTypes().get(policyType0Key));
+        assertThatThrownBy(() -> new SimpleToscaProvider().deletePolicyType(pfDao, policyType0Key))
+                .hasMessage("policy types for PolicyType0:0.0.1 do not exist");
     }
 
     @Test
@@ -235,10 +231,8 @@ public class SimpleToscaProviderTest {
         assertEquals("Updated Description",
                 deletedServiceTemplate.getPolicyTypes().get(policyType0Key).getDescription());
 
-        JpaToscaServiceTemplate doesNotExistServiceTemplate =
-                new SimpleToscaProvider().deletePolicyType(pfDao, policyType0Key);
-
-        assertEquals(null, doesNotExistServiceTemplate.getPolicyTypes().get(policyType0Key));
+        assertThatThrownBy(() -> new SimpleToscaProvider().deletePolicyType(pfDao, policyType0Key))
+                .hasMessage("policy types for PolicyType0:0.0.1 do not exist");
     }
 
     @Test
@@ -255,7 +249,8 @@ public class SimpleToscaProviderTest {
         JpaToscaServiceTemplate createdServiceTemplate =
                 new SimpleToscaProvider().createPolicies(pfDao, originalServiceTemplate);
 
-        assertEquals(originalServiceTemplate, createdServiceTemplate);
+        assertEquals(originalServiceTemplate.getTopologyTemplate().getPolicies(),
+                createdServiceTemplate.getTopologyTemplate().getPolicies());
 
         PfConceptKey policyKey = new PfConceptKey("onap.restart.tca:1.0.0");
 
@@ -264,7 +259,6 @@ public class SimpleToscaProviderTest {
 
         assertEquals(originalServiceTemplate.getTopologyTemplate().getPolicies().get(policyKey),
                 gotServiceTemplate.getTopologyTemplate().getPolicies().get(policyKey));
-
     }
 
     @Test
@@ -281,7 +275,8 @@ public class SimpleToscaProviderTest {
         JpaToscaServiceTemplate createdServiceTemplate =
                 new SimpleToscaProvider().createPolicies(pfDao, originalServiceTemplate);
 
-        assertEquals(originalServiceTemplate, createdServiceTemplate);
+        assertEquals(originalServiceTemplate.getTopologyTemplate().getPolicies(),
+                createdServiceTemplate.getTopologyTemplate().getPolicies());
     }
 
     @Test
@@ -315,7 +310,7 @@ public class SimpleToscaProviderTest {
         JpaToscaServiceTemplate createdServiceTemplate =
                 new SimpleToscaProvider().createPolicies(pfDao, originalServiceTemplate);
 
-        assertEquals(originalServiceTemplate, createdServiceTemplate);
+        assertEquals(originalServiceTemplate.getTopologyTemplate(), createdServiceTemplate.getTopologyTemplate());
 
         PfConceptKey policyKey = new PfConceptKey("onap.restart.tca:1.0.0");
 
@@ -325,8 +320,11 @@ public class SimpleToscaProviderTest {
         assertEquals(originalServiceTemplate.getTopologyTemplate().getPolicies().get(policyKey),
                 deletedServiceTemplate.getTopologyTemplate().getPolicies().get(policyKey));
 
-        assertTrue(new SimpleToscaProvider().getPolicies(pfDao, policyKey.getName(), policyKey.getVersion())
-                .getTopologyTemplate().getPolicies().getConceptMap().isEmpty());
+        // @formatter:off
+        assertThatThrownBy(
+            () -> new SimpleToscaProvider().getPolicies(pfDao, policyKey.getName(), policyKey.getVersion()))
+                    .hasMessage("policies for onap.restart.tca:1.0.0 do not exist");
+        // @formatter:on
     }
 
     @Test
@@ -361,7 +359,7 @@ public class SimpleToscaProviderTest {
 
         assertThatThrownBy(() -> {
             new SimpleToscaProvider().createDataTypes(pfDao, null);
-        }).hasMessageMatching(TEMPLATE_IS_NULL);
+        }).hasMessageMatching(INCOMING_TEMPLATE_IS_NULL);
 
         assertThatThrownBy(() -> {
             new SimpleToscaProvider().updateDataTypes(null, null);
@@ -401,7 +399,7 @@ public class SimpleToscaProviderTest {
 
         assertThatThrownBy(() -> {
             new SimpleToscaProvider().createPolicyTypes(pfDao, null);
-        }).hasMessageMatching(TEMPLATE_IS_NULL);
+        }).hasMessageMatching(INCOMING_TEMPLATE_IS_NULL);
 
         assertThatThrownBy(() -> {
             new SimpleToscaProvider().updatePolicyTypes(null, null);
@@ -441,7 +439,7 @@ public class SimpleToscaProviderTest {
 
         assertThatThrownBy(() -> {
             new SimpleToscaProvider().createPolicies(pfDao, null);
-        }).hasMessageMatching(TEMPLATE_IS_NULL);
+        }).hasMessageMatching(INCOMING_TEMPLATE_IS_NULL);
 
         assertThatThrownBy(() -> {
             new SimpleToscaProvider().updatePolicies(null, null);
diff --git a/models-tosca/src/test/java/org/onap/policy/models/tosca/utils/ToscaUtilsTest.java b/models-tosca/src/test/java/org/onap/policy/models/tosca/utils/ToscaUtilsTest.java
index bad89e909..a5d145e39 100644
--- a/models-tosca/src/test/java/org/onap/policy/models/tosca/utils/ToscaUtilsTest.java
+++ b/models-tosca/src/test/java/org/onap/policy/models/tosca/utils/ToscaUtilsTest.java
@@ -253,31 +253,23 @@ public class ToscaUtilsTest {
     @Test
     public void testgetEntityTree() {
         assertThatThrownBy(() -> {
-            ToscaUtils.getEntityTree(null, null);
+            ToscaUtils.getEntityTree(null, null, null);
         }).hasMessageMatching("entityTypes is marked .*on.*ull but is null");
 
-        assertThatThrownBy(() -> {
-            ToscaUtils.getEntityTree(null, new PfConceptKey());
-        }).hasMessageMatching("entityTypes is marked .*on.*ull but is null");
-
-        assertThatThrownBy(() -> {
-            ToscaUtils.getEntityTree(new JpaToscaDataTypes(), null);
-        }).hasMessageMatching("searchKey is marked .*on.*ull but is null");
-
         JpaToscaDataTypes dataTypes = new JpaToscaDataTypes(new PfConceptKey("datatypes", "0.0.1"));
         JpaToscaDataTypes filteredDataTypes = new JpaToscaDataTypes(new PfConceptKey("datatypes", "0.0.1"));
-        ToscaUtils.getEntityTree(filteredDataTypes, new PfConceptKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, "IDontExist", "0.0.0");
         assertEquals(dataTypes, filteredDataTypes);
 
         JpaToscaDataType dt0 = new JpaToscaDataType(new PfConceptKey("dt0", "0.0.1"));
         dataTypes.getConceptMap().put(dt0.getKey(), dt0);
         filteredDataTypes.getConceptMap().put(dt0.getKey(), dt0);
-        ToscaUtils.getEntityTree(filteredDataTypes, new PfConceptKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, "IDontExist", "0.0.0");
         assertNotEquals(dataTypes, filteredDataTypes);
         assertTrue(filteredDataTypes.getConceptMap().isEmpty());
 
         filteredDataTypes.getConceptMap().put(dt0.getKey(), dt0);
-        ToscaUtils.getEntityTree(filteredDataTypes, dt0.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt0.getKey().getName(), dt0.getKey().getVersion());
         assertEquals(dataTypes, filteredDataTypes);
 
         JpaToscaDataType dt1 = new JpaToscaDataType(new PfConceptKey("dt1", "0.0.1"));
@@ -317,31 +309,31 @@ public class ToscaUtilsTest {
         dataTypes.getConceptMap().put(dt8.getKey(), dt8);
         dataTypes.getConceptMap().put(dt9.getKey(), dt9);
 
-        ToscaUtils.getEntityTree(filteredDataTypes, dt0.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt0.getKey().getName(), dt0.getKey().getVersion());
         assertEquals(1, filteredDataTypes.getConceptMap().size());
 
         filteredDataTypes = new JpaToscaDataTypes(dataTypes);
-        ToscaUtils.getEntityTree(filteredDataTypes, dt1.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt1.getKey().getName(), dt1.getKey().getVersion());
         assertEquals(2, filteredDataTypes.getConceptMap().size());
 
         filteredDataTypes = new JpaToscaDataTypes(dataTypes);
-        ToscaUtils.getEntityTree(filteredDataTypes, dt2.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt2.getKey().getName(), dt2.getKey().getVersion());
         assertEquals(2, filteredDataTypes.getConceptMap().size());
 
         filteredDataTypes = new JpaToscaDataTypes(dataTypes);
-        ToscaUtils.getEntityTree(filteredDataTypes, dt3.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt3.getKey().getName(), dt3.getKey().getVersion());
         assertEquals(2, filteredDataTypes.getConceptMap().size());
 
         filteredDataTypes = new JpaToscaDataTypes(dataTypes);
-        ToscaUtils.getEntityTree(filteredDataTypes, dt4.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt4.getKey().getName(), dt4.getKey().getVersion());
         assertEquals(3, filteredDataTypes.getConceptMap().size());
 
         filteredDataTypes = new JpaToscaDataTypes(dataTypes);
-        ToscaUtils.getEntityTree(filteredDataTypes, dt5.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt5.getKey().getName(), dt5.getKey().getVersion());
         assertEquals(4, filteredDataTypes.getConceptMap().size());
 
         filteredDataTypes = new JpaToscaDataTypes(dataTypes);
-        ToscaUtils.getEntityTree(filteredDataTypes, dt6.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt6.getKey().getName(), dt6.getKey().getVersion());
         assertEquals(5, filteredDataTypes.getConceptMap().size());
         assertTrue(filteredDataTypes.getConceptMap().containsValue(dt0));
         assertFalse(filteredDataTypes.getConceptMap().containsValue(dt1));
@@ -352,15 +344,15 @@ public class ToscaUtilsTest {
         assertTrue(filteredDataTypes.getConceptMap().containsValue(dt6));
 
         filteredDataTypes = new JpaToscaDataTypes(dataTypes);
-        ToscaUtils.getEntityTree(filteredDataTypes, dt7.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt7.getKey().getName(), dt7.getKey().getVersion());
         assertEquals(1, filteredDataTypes.getConceptMap().size());
 
         filteredDataTypes = new JpaToscaDataTypes(dataTypes);
-        ToscaUtils.getEntityTree(filteredDataTypes, dt8.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt8.getKey().getName(), dt8.getKey().getVersion());
         assertEquals(2, filteredDataTypes.getConceptMap().size());
 
         filteredDataTypes = new JpaToscaDataTypes(dataTypes);
-        ToscaUtils.getEntityTree(filteredDataTypes, dt9.getKey());
+        ToscaUtils.getEntityTree(filteredDataTypes, dt9.getKey().getName(), dt9.getKey().getVersion());
         assertEquals(3, filteredDataTypes.getConceptMap().size());
 
         dt9.setDerivedFrom(new PfConceptKey("i.dont.Exist", "0.0.0"));
@@ -368,7 +360,7 @@ public class ToscaUtilsTest {
 
         assertThatThrownBy(() -> {
             final JpaToscaDataTypes badDataTypes = new JpaToscaDataTypes(dataTypes);
-            ToscaUtils.getEntityTree(badDataTypes, dt9.getKey());
+            ToscaUtils.getEntityTree(badDataTypes, dt9.getKey().getName(), dt9.getKey().getVersion());
         }).hasMessageContaining("parent i.dont.Exist:0.0.0 of entity not found");
     }
 }
diff --git a/models-tosca/src/test/resources/META-INF/persistence.xml b/models-tosca/src/test/resources/META-INF/persistence.xml
index 62e0b6046..d6fba8f8a 100644
--- a/models-tosca/src/test/resources/META-INF/persistence.xml
+++ b/models-tosca/src/test/resources/META-INF/persistence.xml
@@ -28,9 +28,11 @@
         <class>org.onap.policy.models.base.PfConceptKey</class>
         <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaDataType</class>
         <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaDataTypes</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicies</class>
         <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicy</class>
         <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicyType</class>
         <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaPolicyTypes</class>
+        <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaTopologyTemplate</class>
         <class>org.onap.policy.models.tosca.simple.concepts.JpaToscaServiceTemplate</class>
 
         <properties>
diff --git a/models-tosca/src/test/resources/onap.policies.NoVersion.yaml b/models-tosca/src/test/resources/onap.policies.NoVersion.yaml
index 7d1262b7d..5923eb22d 100644
--- a/models-tosca/src/test/resources/onap.policies.NoVersion.yaml
+++ b/models-tosca/src/test/resources/onap.policies.NoVersion.yaml
@@ -1,5 +1,9 @@
 tosca_definitions_version: tosca_simple_yaml_1_0_0
 policy_types:
+   onap.policies.Optimization:
+      derived_from: tosca.policies.Root
+      version: 1.0.0
+      description: The base policy type for all policies that govern optimization
    onap.policies.NoVersion:
       derived_from: onap.policies.Optimization
       properties: