Migrate remnants of jersey 1 to 2 in aai-common

- use org.glassfish.jersey instead of com.sun.jersey

Issue-ID: AAI-3990
Change-Id: Ice5731a241be3adf03a64a66fe6f595e5970c7c0
Signed-off-by: Fiete Ostkamp <Fiete.Ostkamp@telekom.de>

4 files changed, 154 insertions, 163 deletions

diff --git a/aai-core/pom.xml b/aai-core/pom.xml
index 2f5908b4..e53d233c 100644
--- a/aai-core/pom.xml
+++ b/aai-core/pom.xml
@@ -250,16 +250,12 @@ limitations under the License.
 			<artifactId>jackson-module-jaxb-annotations</artifactId>
 		</dependency>
 		<dependency>
-			<groupId>com.sun.jersey</groupId>
-			<artifactId>jersey-core</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>com.sun.jersey</groupId>
+			<groupId>org.glassfish.jersey.core</groupId>
 			<artifactId>jersey-client</artifactId>
 		</dependency>
 		<dependency>
-			<groupId>com.sun.jersey</groupId>
-			<artifactId>jersey-json</artifactId>
+			<groupId>org.glassfish.jersey.media</groupId>
+			<artifactId>jersey-media-json-jackson</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.tinkerpop</groupId>
@@ -417,11 +413,6 @@ limitations under the License.
 			<version>1.18.30</version>
 			<scope>provided</scope>
 		</dependency>
-		<dependency>
-			<groupId>org.apache.commons</groupId>
-			<artifactId>commons-configuration2</artifactId>
-			<version>2.7</version>
-		</dependency>
 	</dependencies>
 
 	<!-- Plugins and repositories -->
diff --git a/aai-core/src/main/java/org/onap/aai/util/HttpsAuthClient.java b/aai-core/src/main/java/org/onap/aai/util/HttpsAuthClient.java
index f8f0b65e..b31bfcb8 100644
--- a/aai-core/src/main/java/org/onap/aai/util/HttpsAuthClient.java
+++ b/aai-core/src/main/java/org/onap/aai/util/HttpsAuthClient.java
@@ -20,13 +20,6 @@
 
 package org.onap.aai.util;
 
-import com.sun.jersey.api.client.Client;
-import com.sun.jersey.api.client.ClientResponse;
-import com.sun.jersey.api.client.config.ClientConfig;
-import com.sun.jersey.api.client.config.DefaultClientConfig;
-import com.sun.jersey.api.json.JSONConfiguration;
-import com.sun.jersey.client.urlconnection.HTTPSProperties;
-
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.security.KeyManagementException;
@@ -41,8 +34,16 @@ import javax.net.ssl.HttpsURLConnection;
 import javax.net.ssl.KeyManagerFactory;
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLSession;
-
-import org.onap.aai.aailog.filter.RestControllerClientLoggingInterceptor;
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+import org.apache.commons.configuration2.JSONConfiguration;
+import org.glassfish.jersey.client.ClientConfig;
+import org.glassfish.jersey.client.ClientProperties;
+import org.onap.aai.aailog.filter.RestControllerClientRequestLoggingInterceptor;
+import org.onap.aai.aailog.filter.RestControllerClientResponseLoggingInterceptor;
 import org.onap.aai.exceptions.AAIException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -62,12 +63,10 @@ public class HttpsAuthClient {
             System.out.println("Making Jersey https call...");
             Client client = HttpsAuthClient.getClient();
 
-            ClientResponse res = client.resource(url).accept("application/json").header("X-TransactionId", "PROV001")
-                    .header("X-FromAppId", "AAI").type("application/json").get(ClientResponse.class);
-
-            // System.out.println("Jersey result: ");
-            // System.out.println(res.getEntity(String.class).toString());
-
+            Response res = client.target(url)
+                    .request(MediaType.APPLICATION_JSON)
+                    .header("X-TransactionId", "PROV001")
+                    .header("X-FromAppId", "AAI").get();
         } catch (KeyManagementException e) {
             logger.debug("HttpsAuthClient KeyManagement error : {}", e.getMessage());
         } catch (Exception e) {
@@ -89,9 +88,9 @@ public class HttpsAuthClient {
             String keystorePassword) throws KeyManagementException, UnrecoverableKeyException, CertificateException,
             NoSuchAlgorithmException, KeyStoreException, IOException {
 
-        ClientConfig config = new DefaultClientConfig();
-        config.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
-        config.getClasses().add(org.onap.aai.restcore.CustomJacksonJaxBJsonProvider.class);
+        ClientConfig config = new ClientConfig();
+        config.register(org.onap.aai.restcore.CustomJacksonJaxBJsonProvider.class);
+
         SSLContext ctx = null;
         try {
             System.setProperty("javax.net.ssl.trustStore", truststorePath);
@@ -117,20 +116,16 @@ public class HttpsAuthClient {
             }
 
             ctx.init(kmf.getKeyManagers(), null, null);
-            config.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES,
-                    new HTTPSProperties(new HostnameVerifier() {
-                        @Override
-                        public boolean verify(String s, SSLSession sslSession) {
-                            return true;
-                        }
-                    }, ctx));
+            config.property("jersey.config.client.ssl.context", ctx);
+            config.property("jersey.config.client.hostname.verifier", (HostnameVerifier) (s, sslSession) -> true);
         } catch (Exception e) {
             System.out.println("Error setting up config: exiting " + e.getMessage());
             throw e;
         }
 
-        Client client = Client.create(config);
-        client.addFilter(new RestControllerClientLoggingInterceptor());
+        Client client = ClientBuilder.newClient(config);
+        client.register(new RestControllerClientRequestLoggingInterceptor());
+        client.register(new RestControllerClientResponseLoggingInterceptor());
         // uncomment this line to get more logging for the request/response
         // client.addFilter(new LoggingFilter(System.out));
 
diff --git a/aai-core/src/main/java/org/onap/aai/util/HttpsAuthExternalClient.java b/aai-core/src/main/java/org/onap/aai/util/HttpsAuthExternalClient.java
index 53e2d958..1ace66c7 100644
--- a/aai-core/src/main/java/org/onap/aai/util/HttpsAuthExternalClient.java
+++ b/aai-core/src/main/java/org/onap/aai/util/HttpsAuthExternalClient.java
@@ -20,21 +20,16 @@
 
 package org.onap.aai.util;
 
-import com.sun.jersey.api.client.Client;
-import com.sun.jersey.api.client.config.ClientConfig;
-import com.sun.jersey.api.client.config.DefaultClientConfig;
-import com.sun.jersey.api.json.JSONConfiguration;
-import com.sun.jersey.client.urlconnection.HTTPSProperties;
-
 import java.io.FileInputStream;
-import java.security.KeyStore;
+
+import org.glassfish.jersey.client.ClientConfig;
+import org.glassfish.jersey.SslConfigurator;
 
 import javax.net.ssl.HostnameVerifier;
-import javax.net.ssl.HttpsURLConnection;
-import javax.net.ssl.KeyManagerFactory;
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLSession;
-import javax.net.ssl.TrustManagerFactory;
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
 
 public class HttpsAuthExternalClient {
 
@@ -48,63 +43,45 @@ public class HttpsAuthExternalClient {
      */
     public static Client getClient(String keystoreFileName, String keystorePassword) throws Exception {
 
-        ClientConfig config = new DefaultClientConfig();
-        config.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
-        config.getClasses().add(org.onap.aai.restcore.CustomJacksonJaxBJsonProvider.class);
-        Client client = null;
-        SSLContext ctx = null;
-        String truststore_path = AAIConstants.AAI_HOME_ETC_AUTH + AAIConfig.get(AAIConstants.AAI_TRUSTSTORE_FILENAME);
-        try (FileInputStream tin = new FileInputStream(truststore_path)) {
-            String truststore_password = AAIConfig.get(AAIConstants.AAI_TRUSTSTORE_PASSWD);
-            String keystore_path = AAIConstants.AAI_HOME_ETC_AUTH + keystoreFileName;
-            String keystore_password = keystorePassword;
-            // System.setProperty("javax.net.ssl.trustStore", truststore_path);
-            // System.setProperty("javax.net.ssl.trustStorePassword", truststore_password);
-            HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
-                public boolean verify(String string, SSLSession ssls) {
-                    return true;
-                }
-            });
+        ClientConfig config = new ClientConfig();
+        config.register(org.onap.aai.restcore.CustomJacksonJaxBJsonProvider.class);
 
-            ctx = SSLContext.getInstance("TLS");
-            KeyManagerFactory kmf = null;
+        SSLContext sslContext = null;
+        String truststorePath = AAIConstants.AAI_HOME_ETC_AUTH + AAIConfig.get(AAIConstants.AAI_TRUSTSTORE_FILENAME);
+        try (FileInputStream tin = new FileInputStream(truststorePath)) {
+            String truststorePassword = AAIConfig.get(AAIConstants.AAI_TRUSTSTORE_PASSWD);
+            String keystorePath = AAIConstants.AAI_HOME_ETC_AUTH + keystoreFileName;
 
-            /****
-             * kmf = KeyManagerFactory.getInstance("SunX509");
-             * FileInputStream fin = new FileInputStream(keystore_path);
-             * KeyStore ks = KeyStore.getInstance("PKCS12");
-             * char[] pwd = keystore_password.toCharArray();
-             * ks.load(fin, pwd);
-             * kmf.init(ks, pwd);
-             ***/
+            SslConfigurator sslConfig = SslConfigurator.newInstance()
+                    .trustStoreFile(truststorePath)
+                    .trustStorePassword(truststorePassword)
+                    .keyStoreFile(keystorePath)
+                    .keyStorePassword(keystorePassword);
 
-            String alg = TrustManagerFactory.getDefaultAlgorithm();
-            TrustManagerFactory tmf = TrustManagerFactory.getInstance(alg);
+            sslContext = sslConfig.createSSLContext();
 
-            KeyStore ts = KeyStore.getInstance("PKCS12");
-            char[] tpwd = truststore_password.toCharArray();
-            ts.load(tin, tpwd);
-            tmf.init(ts);
+            HostnameVerifier hostnameVerifier = new HostnameVerifier() {
+                @Override
+                public boolean verify(String s, SSLSession sslSession) {
+                    return true;
+                }
+            };
 
-            // ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
-            // Updating key manager to null, to disable two way SSL
-            ctx.init(null, tmf.getTrustManagers(), null);
+            Client client = ClientBuilder.newBuilder()
+                    .withConfig(config)
+                    .sslContext(sslContext)
+                    .hostnameVerifier(hostnameVerifier)
+                    .build();
 
-            config.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES,
-                    new HTTPSProperties(new HostnameVerifier() {
-                        @Override
-                        public boolean verify(String s, SSLSession sslSession) {
-                            return true;
-                        }
-                    }, ctx));
+            // Uncomment this line to get more logging for the request/response
+            // client.register(new
+            // LoggingFeature(Logger.getLogger(LoggingFeature.DEFAULT_LOGGER_NAME),
+            // Level.INFO, LoggingFeature.Verbosity.PAYLOAD_ANY, 8192));
 
-            client = Client.create(config);
-            // uncomment this line to get more logging for the request/response
-            // client.addFilter(new LoggingFilter(System.out));
+            return client;
         } catch (Exception e) {
             throw e;
         }
-        return client;
     }
 
 }
diff --git a/aai-core/src/main/java/org/onap/aai/util/RestController.java b/aai-core/src/main/java/org/onap/aai/util/RestController.java
index 1b050829..b72b5af5 100644
--- a/aai-core/src/main/java/org/onap/aai/util/RestController.java
+++ b/aai-core/src/main/java/org/onap/aai/util/RestController.java
@@ -22,9 +22,8 @@ package org.onap.aai.util;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.type.TypeFactory;
-import com.sun.jersey.api.client.Client;
-import com.sun.jersey.api.client.ClientHandlerException;
-import com.sun.jersey.api.client.ClientResponse;
+
+import javax.ws.rs.client.Entity;
 
 import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
@@ -37,6 +36,11 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
 
+import javax.ws.rs.ClientErrorException;
+import javax.ws.rs.client.Client;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
 import org.onap.aai.exceptions.AAIException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -69,8 +73,7 @@ public class RestController implements RestControllerInterface {
 
     public static final String REST_APIPATH_CLOUDREGION = "cloud-infrastructure/cloud-regions/cloud-region/";
     public static final String REST_APIPATH_TENANT = "cloud-infrastructure/tenants/tenant/";
-    public static final String REST_APIPATH_VIRTUAL_DATA_CENTER =
-            "cloud-infrastructure/virtual-data-centers/virtual-data-center/";
+    public static final String REST_APIPATH_VIRTUAL_DATA_CENTER = "cloud-infrastructure/virtual-data-centers/virtual-data-center/";
     public static final String REST_APIPATH_VIRTUAL_DATA_CENTERS = "cloud-infrastructure/virtual-data-centers/";
     public static final String REST_APIPATH_GENERIC_VNF = "network/generic-vnfs/generic-vnf/";
     public static final String REST_APIPATH_GENERIC_VNFS = "network/generic-vnfs";
@@ -173,8 +176,8 @@ public class RestController implements RestControllerInterface {
             url = AAIConfig.get(AAIConstants.AAI_OLDSERVER_URL) + path;
         } else {
             if (overrideLocalHost == null) {
-                overrideLocalHost =
-                        AAIConfig.get(AAIConstants.AAI_LOCAL_OVERRIDE, AAIConstants.AAI_LOCAL_OVERRIDE_DEFAULT);
+                overrideLocalHost = AAIConfig.get(AAIConstants.AAI_LOCAL_OVERRIDE,
+                        AAIConstants.AAI_LOCAL_OVERRIDE_DEFAULT);
             }
             if (AAIConstants.AAI_LOCAL_OVERRIDE_DEFAULT.equals(overrideLocalHost)) {
                 url = String.format(AAIConstants.AAI_LOCAL_REST, port,
@@ -185,21 +188,26 @@ public class RestController implements RestControllerInterface {
             }
         }
         LOGGER.debug(url + " for the get REST API");
-        ClientResponse cres = client.resource(url).accept("application/json").header("X-TransactionId", transId)
-                .header("X-FromAppId", sourceID).header("Real-Time", "true").type("application/json")
-                .get(ClientResponse.class);
+        Response response = client.target(url)
+                .request(MediaType.APPLICATION_JSON)
+                .header("X-TransactionId", transId)
+                .header("X-FromAppId", sourceID)
+                .header("Real-Time", "true")
+                .get();
 
-        // System.out.println("cres.EntityInputSream()="+cres.getEntityInputStream().toString());
-        // System.out.println("cres.tostring()="+cres.toString());
+        // System.out.println("response.EntityInputSream()="+response.getEntityInputStream().toString());
+        // System.out.println("response.tostring()="+response.toString());
 
-        if (cres.getStatus() == 200) {
+        if (response.getStatus() == 200) {
             // System.out.println(methodName + ": url=" + url);
-            t = (T) cres.getEntity(t.getClass());
+            T entity = response.readEntity((Class<T>) t.getClass());
+            restObject.set(entity);
             restObject.set(t);
             LOGGER.debug(methodName + "REST api GET was successfull!");
         } else {
-            // System.out.println(methodName + ": url=" + url + " failed with status=" + cres.getStatus());
-            throw new AAIException("AAI_7116", methodName + " with status=" + cres.getStatus() + ", url=" + url);
+            // System.out.println(methodName + ": url=" + url + " failed with status=" +
+            // response.getStatus());
+            throw new AAIException("AAI_7116", methodName + " with status=" + response.getStatus() + ", url=" + url);
         }
     }
 
@@ -229,21 +237,25 @@ public class RestController implements RestControllerInterface {
         url = AAIConfig.get(AAIConstants.AAI_SERVER_URL_BASE) + apiVersion + "/" + path;
 
         LOGGER.debug(url + " for the get REST API");
-        ClientResponse cres = client.resource(url).accept("application/json").header("X-TransactionId", transId)
-                .header("X-FromAppId", sourceID).header("Real-Time", "true").type("application/json")
-                .get(ClientResponse.class);
+        Response response = client.target(url)
+                .request(MediaType.APPLICATION_JSON)
+                .header("X-TransactionId", transId)
+                .header("X-FromAppId", sourceID)
+                .header("Real-Time", "true")
+                .get();
 
-        // System.out.println("cres.EntityInputSream()="+cres.getEntityInputStream().toString());
-        // System.out.println("cres.tostring()="+cres.toString());
+        // System.out.println("response.EntityInputSream()="+response.getEntityInputStream().toString());
+        // System.out.println("response.tostring()="+response.toString());
 
-        if (cres.getStatus() == 200) {
+        if (response.getStatus() == 200) {
             // System.out.println(methodName + ": url=" + url);
-            t = (T) cres.getEntity(t.getClass());
-            restObject.set(t);
+            T entity = response.readEntity((Class<T>) t.getClass());
+            restObject.set(entity);
             LOGGER.debug(methodName + "REST api GET was successfull!");
         } else {
-            // System.out.println(methodName + ": url=" + url + " failed with status=" + cres.getStatus());
-            throw new AAIException("AAI_7116", methodName + " with status=" + cres.getStatus() + ", url=" + url);
+            // System.out.println(methodName + ": url=" + url + " failed with status=" +
+            // response.getStatus());
+            throw new AAIException("AAI_7116", methodName + " with status=" + response.getStatus() + ", url=" + url);
         }
     }
 
@@ -318,8 +330,8 @@ public class RestController implements RestControllerInterface {
             url = AAIConfig.get(AAIConstants.AAI_OLDSERVER_URL) + path;
         } else {
             if (overrideLocalHost == null) {
-                overrideLocalHost =
-                        AAIConfig.get(AAIConstants.AAI_LOCAL_OVERRIDE, AAIConstants.AAI_LOCAL_OVERRIDE_DEFAULT);
+                overrideLocalHost = AAIConfig.get(AAIConstants.AAI_LOCAL_OVERRIDE,
+                        AAIConstants.AAI_LOCAL_OVERRIDE_DEFAULT);
             }
             if (AAIConstants.AAI_LOCAL_OVERRIDE_DEFAULT.equals(overrideLocalHost)) {
                 url = String.format(AAIConstants.AAI_LOCAL_REST, port,
@@ -330,18 +342,21 @@ public class RestController implements RestControllerInterface {
             }
         }
 
-        ClientResponse cres = client.resource(url).accept("application/json").header("X-TransactionId", transId)
-                .header("X-FromAppId", sourceID).header("Real-Time", "true").type("application/json").entity(t)
-                .put(ClientResponse.class);
+        Response response = client.target(url)
+                .request(MediaType.APPLICATION_JSON)
+                .header("X-TransactionId", transId)
+                .header("X-FromAppId", sourceID)
+                .header("Real-Time", "true")
+                .put(Entity.entity(t, MediaType.APPLICATION_JSON));
 
-        // System.out.println("cres.tostring()="+cres.toString());
+        // System.out.println("response.tostring()="+response.toString());
 
-        int statuscode = cres.getStatus();
+        int statuscode = response.getStatus();
         if (statuscode >= 200 && statuscode <= 299) {
             LOGGER.debug(methodName + ": url=" + url + ", request=" + path);
         } else {
             throw new AAIException("AAI_7116", methodName + " with status=" + statuscode + ", url=" + url + ", msg="
-                    + cres.getEntity(String.class));
+                    + response.readEntity(String.class));
         }
     }
 
@@ -365,18 +380,21 @@ public class RestController implements RestControllerInterface {
 
         url = AAIConfig.get(AAIConstants.AAI_SERVER_URL_BASE) + apiVersion + "/" + path;
 
-        ClientResponse cres = client.resource(url).accept("application/json").header("X-TransactionId", transId)
-                .header("X-FromAppId", sourceID).header("Real-Time", "true").type("application/json").entity(t)
-                .put(ClientResponse.class);
+        Response response = client.target(url)
+                .request(MediaType.APPLICATION_JSON)
+                .header("X-TransactionId", transId)
+                .header("X-FromAppId", sourceID)
+                .header("Real-Time", "true")
+                .put(Entity.entity(t, MediaType.APPLICATION_JSON));
 
-        // System.out.println("cres.tostring()="+cres.toString());
+        // System.out.println("response.tostring()="+response.toString());
 
-        int statuscode = cres.getStatus();
+        int statuscode = response.getStatus();
         if (statuscode >= 200 && statuscode <= 299) {
             LOGGER.debug(methodName + ": url=" + url + ", request=" + path);
         } else {
             throw new AAIException("AAI_7116", methodName + " with status=" + statuscode + ", url=" + url + ", msg="
-                    + cres.getEntity(String.class));
+                    + response.getEntity());
         }
     }
 
@@ -410,16 +428,20 @@ public class RestController implements RestControllerInterface {
             url = String.format(AAIConstants.AAI_LOCAL_REST_OVERRIDE, overrideLocalHost,
                     AAIConfig.get(AAIConstants.AAI_DEFAULT_API_VERSION_PROP)) + path;
         }
-        ClientResponse cres = client.resource(url).accept("application/json").header("X-TransactionId", transId)
-                .header("X-FromAppId", sourceID).header("Real-Time", "true").type("application/json").entity(request)
-                .delete(ClientResponse.class);
-
-        if (cres.getStatus() == 404) { // resource not found
-            LOGGER.info("Resource does not exist...: " + cres.getStatus() + ":" + cres.getEntity(String.class));
-        } else if (cres.getStatus() == 200 || cres.getStatus() == 204) {
+        Response response = client.target(url)
+                .request(MediaType.APPLICATION_JSON)
+                .header("X-TransactionId", transId)
+                .header("X-FromAppId", sourceID)
+                .header("Real-Time", "true")
+                .delete();
+
+        if (response.getStatus() == 404) { // resource not found
+            LOGGER.info(
+                    "Resource does not exist...: " + response.getStatus() + ":" + response.readEntity(String.class));
+        } else if (response.getStatus() == 200 || response.getStatus() == 204) {
             LOGGER.info("Resource " + url + " deleted");
         } else {
-            LOGGER.error("Deleting Resource failed: " + cres.getStatus() + ":" + cres.getEntity(String.class));
+            LOGGER.error("Deleting Resource failed: " + response.getStatus() + ":" + response.readEntity(String.class));
             throw new AAIException("AAI_7116", "Error during DELETE");
         }
     }
@@ -451,17 +473,20 @@ public class RestController implements RestControllerInterface {
 
             url = AAIConfig.get(AAIConstants.AAI_SERVER_URL_BASE) + apiVersion + "/" + path;
 
-            ClientResponse cres = client.resource(url).accept("application/json").header("X-TransactionId", transId)
-                    .header("X-FromAppId", sourceID).header("Real-Time", "true").type("application/json").entity(t)
-                    .post(ClientResponse.class);
+            Response response = client.target(url)
+                    .request(MediaType.APPLICATION_JSON)
+                    .header("X-TransactionId", transId)
+                    .header("X-FromAppId", sourceID)
+                    .header("Real-Time", "true")
+                    .post(Entity.entity(t, MediaType.APPLICATION_JSON));
 
-            int statuscode = cres.getStatus();
+            int statuscode = response.getStatus();
             if (statuscode >= 200 && statuscode <= 299) {
                 LOGGER.debug(methodName + "REST api POST was successful!");
-                return cres.getEntity(String.class);
+                return response.readEntity(String.class);
             } else {
                 throw new AAIException("AAI_7116", methodName + " with status=" + statuscode + ", url=" + url + ", msg="
-                        + cres.getEntity(String.class));
+                        + response.readEntity(String.class));
             }
 
         } catch (AAIException e) {
@@ -503,17 +528,17 @@ public class RestController implements RestControllerInterface {
      */
     /*
      * DoesResourceExist
-     * 
+     *
      * To check whether a resource exist or get a copy of the existing version of the resource
-     * 
+     *
      * Resourcepath: should contain the qualified resource path (including encoded unique key identifier value),
      * resourceClassName: is the canonical name of the resource class name,
      * fromAppId:
      * transId:
-     * 
+     *
      * Will return null (if the resource doesn’t exist) (or)
      * Will return the specified resource from the Graph.
-     * 
+     *
      * Example:
      * LogicalLink llink = new LogicalLink();
      * String resourceClassName = llink.getClass().getCanonicalName();
@@ -536,7 +561,7 @@ public class RestController implements RestControllerInterface {
 
         } catch (AAIException e) {
 
-        } catch (ClientHandlerException che) {
+        } catch (ClientErrorException che) {
 
         } catch (Exception e) {
 
@@ -560,13 +585,13 @@ public class RestController implements RestControllerInterface {
         transId += ":" + UUID.randomUUID().toString();
 
         int numRetries = 5;
-        ClientResponse cres = null;
+        Response response = null;
         int statusCode = -1;
 
         try {
             if (overrideLocalHost == null) {
-                overrideLocalHost =
-                        AAIConfig.get(AAIConstants.AAI_LOCAL_OVERRIDE, AAIConstants.AAI_LOCAL_OVERRIDE_DEFAULT);
+                overrideLocalHost = AAIConfig.get(AAIConstants.AAI_LOCAL_OVERRIDE,
+                        AAIConstants.AAI_LOCAL_OVERRIDE_DEFAULT);
             }
             if (AAIConstants.AAI_LOCAL_OVERRIDE_DEFAULT.equals(overrideLocalHost)) {
                 url = String.format(AAIConstants.AAI_LOCAL_REST, AAIConstants.AAI_RESOURCES_PORT,
@@ -578,11 +603,14 @@ public class RestController implements RestControllerInterface {
 
             do {
 
-                cres = client.resource(url).accept("application/json").header("X-TransactionId", transId)
-                        .header("X-FromAppId", sourceID).header("X-HTTP-Method-Override", "PATCH")
-                        .type("application/merge-patch+json").entity(t).post(ClientResponse.class);
+                response = client.target(url)
+                        .request(MediaType.APPLICATION_JSON)
+                        .header("X-TransactionId", transId)
+                        .header("X-FromAppId", sourceID)
+                        .header("X-HTTP-Method-Override", "PATCH")
+                        .post(Entity.entity(t, "application/merge-patch+json"));
 
-                statusCode = cres.getStatus();
+                statusCode = response.getStatus();
 
                 if (statusCode >= 200 && statusCode <= 299) {
                     LOGGER.debug(methodName + "REST api PATCH was successful!");
@@ -598,7 +626,7 @@ public class RestController implements RestControllerInterface {
             LOGGER.debug(methodName + "Unable to make the patch request to url " + url + " even after trying = "
                     + numRetries + " times.");
             throw new AAIException("AAI_7116", methodName + " with status=" + statusCode + ", url=" + url + ", msg="
-                    + cres.getEntity(String.class));
+                    + response.readEntity(String.class));
 
         } catch (AAIException e) {
             throw new AAIException("AAI_7116", methodName + " with url=" + url + ", Exception: " + e.toString());