Fix sonars in apex-pdp #3

Fixed:
- use "var"
- use assertEquals instead of assertTrue(xxx.equals())
- separate assertions

Issue-ID: POLICY-3093
Change-Id: Id4db62626948681cd267e68a56dda65fa355c6f8
Signed-off-by: Jim Hahn <jrh3@att.com>

13 files changed, 42 insertions, 36 deletions

diff --git a/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/messaging/MessagingUtilsTest.java b/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/messaging/MessagingUtilsTest.java
index a3c7ea419..6d5915ce8 100644
--- a/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/messaging/MessagingUtilsTest.java
+++ b/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/messaging/MessagingUtilsTest.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (c) 2020 Nordix Foundation.
+ *  Modifications Copyright (C) 2021 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.
@@ -40,7 +41,7 @@ public class MessagingUtilsTest {
 
     @Test(expected = IllegalArgumentException.class)
     public void testIllegalArgumentException() {
-        assertEquals(1, MessagingUtils.findPort(65536));
+        MessagingUtils.findPort(65536);
     }
 
     @Test
@@ -58,7 +59,7 @@ public class MessagingUtilsTest {
 
     @Test(expected = IllegalArgumentException.class)
     public void testInvalidAllocateAddress() {
-        assertEquals(1, MessagingUtils.allocateAddress(1));
+        MessagingUtils.allocateAddress(1);
     }
 
     @Test
diff --git a/core/core-protocols/src/test/java/org/onap/policy/apex/core/protocols/SupportMessageTester.java b/core/core-protocols/src/test/java/org/onap/policy/apex/core/protocols/SupportMessageTest.java
index 7bc352025..8b19059b5 100644
--- a/core/core-protocols/src/test/java/org/onap/policy/apex/core/protocols/SupportMessageTester.java
+++ b/core/core-protocols/src/test/java/org/onap/policy/apex/core/protocols/SupportMessageTest.java
@@ -33,7 +33,7 @@ import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
 /**
  * Test of the abstract Message class.
  */
-public class SupportMessageTester {
+public class SupportMessageTest {
 
     @Test
     public void testMessage() {
diff --git a/examples/examples-servlet/src/main/java/org/onap/policy/apex/examples/servlet/ApexServletListener.java b/examples/examples-servlet/src/main/java/org/onap/policy/apex/examples/servlet/ApexServletListener.java
index 80ef7354b..c1b7fbc11 100644
--- a/examples/examples-servlet/src/main/java/org/onap/policy/apex/examples/servlet/ApexServletListener.java
+++ b/examples/examples-servlet/src/main/java/org/onap/policy/apex/examples/servlet/ApexServletListener.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2018 Ericsson. All rights reserved.
+ *  Modifications Copyright (C) 2021 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.
@@ -57,7 +58,7 @@ public class ApexServletListener implements ServletContextListener {
 
         // Check that a configuration file have been specified
         if (servletContextEvent.getServletContext().getInitParameter("config-file") == null) {
-            final String errorMessage =
+            final var errorMessage =
                     "Apex servlet start failed, servlet parameter \"config-file\" has not been specified";
             LOGGER.error("Apex servlet start failed, servlet parameter \"config-file\" has not been specified");
             throw new ApexRuntimeException(errorMessage);
@@ -89,8 +90,7 @@ public class ApexServletListener implements ServletContextListener {
             apexMain.shutdown();
             apexMain = null;
         } catch (final ApexException e) {
-            final String errorMessage = "Apex servlet stop did not execute normally";
-            LOGGER.error(errorMessage, e);
+            LOGGER.error("Apex servlet stop did not execute normally", e);
         }
 
         LOGGER.info("Apex Servliet has been stopped");
diff --git a/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/impl/EventConsumerFactory.java b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/impl/EventConsumerFactory.java
index 2f6922a2b..acf49e385 100644
--- a/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/impl/EventConsumerFactory.java
+++ b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/impl/EventConsumerFactory.java
@@ -2,6 +2,7 @@
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
  *  Modifications Copyright (C) 2019-2020 Nordix Foundation.
+ *  Modifications Copyright (C) 2021 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.
@@ -23,7 +24,6 @@ package org.onap.policy.apex.service.engine.event.impl;
 
 import org.onap.policy.apex.service.engine.event.ApexEventConsumer;
 import org.onap.policy.apex.service.engine.event.ApexEventException;
-import org.onap.policy.apex.service.parameters.carriertechnology.CarrierTechnologyParameters;
 import org.onap.policy.apex.service.parameters.eventhandler.EventHandlerParameters;
 import org.slf4j.ext.XLogger;
 import org.slf4j.ext.XLoggerFactory;
@@ -48,7 +48,7 @@ public class EventConsumerFactory {
     public ApexEventConsumer createConsumer(final String name, final EventHandlerParameters consumerParameters)
             throws ApexEventException {
         // Get the carrier technology parameters
-        final CarrierTechnologyParameters technologyParameters = consumerParameters.getCarrierTechnologyParameters();
+        final var technologyParameters = consumerParameters.getCarrierTechnologyParameters();
 
         // Get the class for the event consumer using reflection
         final String consumerPluginClass = technologyParameters.getEventConsumerPluginClass();
diff --git a/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/impl/EventProducerFactory.java b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/impl/EventProducerFactory.java
index e87e2fd78..7139625ab 100644
--- a/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/impl/EventProducerFactory.java
+++ b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/impl/EventProducerFactory.java
@@ -2,6 +2,7 @@
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
  *  Modifications Copyright (C) 2019-2020 Nordix Foundation.
+ *  Modifications Copyright (C) 2021 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.
@@ -23,7 +24,6 @@ package org.onap.policy.apex.service.engine.event.impl;
 
 import org.onap.policy.apex.service.engine.event.ApexEventException;
 import org.onap.policy.apex.service.engine.event.ApexEventProducer;
-import org.onap.policy.apex.service.parameters.carriertechnology.CarrierTechnologyParameters;
 import org.onap.policy.apex.service.parameters.eventhandler.EventHandlerParameters;
 import org.slf4j.ext.XLogger;
 import org.slf4j.ext.XLoggerFactory;
@@ -48,7 +48,7 @@ public class EventProducerFactory {
     public ApexEventProducer createProducer(final String name, final EventHandlerParameters producerParameters)
             throws ApexEventException {
         // Get the carrier technology parameters
-        final CarrierTechnologyParameters technologyParameters = producerParameters.getCarrierTechnologyParameters();
+        final var technologyParameters = producerParameters.getCarrierTechnologyParameters();
 
         // Get the class for the event producer using reflection
         final String producerPluginClass = technologyParameters.getEventProducerPluginClass();
diff --git a/testsuites/integration/integration-common/src/main/java/org/onap/policy/apex/context/test/concepts/TestContextDateItem.java b/testsuites/integration/integration-common/src/main/java/org/onap/policy/apex/context/test/concepts/TestContextDateItem.java
index 13cefaa58..a62d348f2 100644
--- a/testsuites/integration/integration-common/src/main/java/org/onap/policy/apex/context/test/concepts/TestContextDateItem.java
+++ b/testsuites/integration/integration-common/src/main/java/org/onap/policy/apex/context/test/concepts/TestContextDateItem.java
@@ -2,6 +2,7 @@
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
  *  Modifications Copyright (C) 2019-2020 Nordix Foundation.
+ *  Modifications Copyright (C) 2021 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.
@@ -101,7 +102,7 @@ public class TestContextDateItem implements Serializable {
     public void setDateValue(final long dateValue) {
         this.time = dateValue;
 
-        final Calendar calendar = Calendar.getInstance();
+        final var calendar = Calendar.getInstance();
         calendar.setTimeZone(TimeZone.getTimeZone("UTC"));
         calendar.setTimeInMillis(time);
 
diff --git a/testsuites/integration/integration-context-test/src/test/java/org/onap/policy/apex/testsuites/integration/context/distribution/ContextInstantiation.java b/testsuites/integration/integration-context-test/src/test/java/org/onap/policy/apex/testsuites/integration/context/distribution/ContextInstantiation.java
index 5561dbece..fa3612fe9 100644
--- a/testsuites/integration/integration-context-test/src/test/java/org/onap/policy/apex/testsuites/integration/context/distribution/ContextInstantiation.java
+++ b/testsuites/integration/integration-context-test/src/test/java/org/onap/policy/apex/testsuites/integration/context/distribution/ContextInstantiation.java
@@ -2,6 +2,7 @@
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
  *  Modifications Copyright (C) 2019-2020 Nordix Foundation.
+ *  Modifications Copyright (C) 2021 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.
@@ -21,6 +22,7 @@
 
 package org.onap.policy.apex.testsuites.integration.context.distribution;
 
+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;
@@ -274,16 +276,16 @@ public class ContextInstantiation {
         externalContextOther.setTestExternalContextItem002(new TestContextIntItem());
         externalContextOther.getTestExternalContextItem002().setIntValue(INT_VAL_2);
 
-        assertTrue(externalContextAlbum.put(EXTERNAL_CONTEXT, externalContextOther).equals(externalContext));
+        assertThat(externalContextAlbum.put(EXTERNAL_CONTEXT, externalContextOther)).isEqualTo(externalContext);
         externalContextItem = (TestExternalContextItem) externalContextAlbum.get(EXTERNAL_CONTEXT);
         assertEquals(INT_VAL_2, externalContextItem.getTestExternalContextItem002().getIntValue());
-        assertTrue(externalContextAlbum.put(EXTERNAL_CONTEXT, externalContext).equals(externalContextOther));
+        assertThat(externalContextAlbum.put(EXTERNAL_CONTEXT, externalContext)).isEqualTo(externalContextOther);
         externalContextItem = (TestExternalContextItem) externalContextAlbum.get(EXTERNAL_CONTEXT);
         assertEquals(INT_VAL_3, externalContextItem.getTestExternalContextItem002().getIntValue());
         assertThatThrownBy(() -> externalContextAlbum.put("TestExternalContextItem00A", null))
             .hasMessageContaining(NULL_ILLEGAL + "\"TestExternalContextItem00A\" for put()");
 
-        assertTrue(externalContextAlbum.get(EXTERNAL_CONTEXT).equals(externalContext));
+        assertThat(externalContextAlbum.get(EXTERNAL_CONTEXT)).isEqualTo(externalContext);
 
         assertThatThrownBy(() -> externalContextAlbum.put("TestExternalContextItemFFF", null))
             .hasMessageContaining(NULL_ILLEGAL + "\"TestExternalContextItemFFF\" for put()");
@@ -477,11 +479,11 @@ public class ContextInstantiation {
     }
 
     private void assertFloat(final float actual, final float expected) {
-        assertTrue(Float.compare(actual, expected) == 0);
+        assertThat(actual).isEqualTo(expected);
     }
 
     private void assertDouble(final double actual, final double expected) {
-        assertTrue(Double.compare(actual, expected) == 0);
+        assertThat(actual).isEqualTo(expected);
     }
 
     private Distributor getDistributor() throws ContextException {
diff --git a/testsuites/integration/integration-context-test/src/test/java/org/onap/policy/apex/testsuites/integration/context/distribution/ContextUpdate.java b/testsuites/integration/integration-context-test/src/test/java/org/onap/policy/apex/testsuites/integration/context/distribution/ContextUpdate.java
index ae662f293..b0370c5d9 100644
--- a/testsuites/integration/integration-context-test/src/test/java/org/onap/policy/apex/testsuites/integration/context/distribution/ContextUpdate.java
+++ b/testsuites/integration/integration-context-test/src/test/java/org/onap/policy/apex/testsuites/integration/context/distribution/ContextUpdate.java
@@ -2,6 +2,7 @@
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
  *  Modifications Copyright (C) 2019-2020 Nordix Foundation.
+ *  Modifications Copyright (C) 2021 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.
@@ -21,6 +22,7 @@
 
 package org.onap.policy.apex.testsuites.integration.context.distribution;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
@@ -97,10 +99,10 @@ public class ContextUpdate {
             .hasMessage("album \"LongContextAlbum:0.0.1\" null keys are illegal on keys for put()");
 
         assertNull(dateContextAlbum.put("date0", tciA));
-        assertTrue(dateContextAlbum.put("date0", tciA).equals(tciA));
+        assertThat(dateContextAlbum.put("date0", tciA)).isEqualTo(tciA);
 
         assertNull(mapContextAlbum.put("map0", tciC));
-        assertTrue(mapContextAlbum.put("map0", tciC).equals(tciC));
+        assertThat(mapContextAlbum.put("map0", tciC)).isEqualTo(tciC);
 
         contextDistributor.clear();
     }
diff --git a/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventBatch.java b/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventBatch.java
index 99f480b6c..3e3658349 100644
--- a/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventBatch.java
+++ b/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventBatch.java
@@ -55,8 +55,8 @@ public class EventBatch {
         this.apexClient = apexClient;
 
         // Create the events for the batch of events
-        for (int eventNumber = 0; eventNumber < batchSize; eventNumber++) {
-            InputEvent inputEvent = new InputEvent();
+        for (var eventNumber = 0; eventNumber < batchSize; eventNumber++) {
+            var inputEvent = new InputEvent();
             inputEvent.setTestSlogan(getEventSlogan(eventNumber));
             inputEventMap.put(eventNumber, inputEvent);
         }
@@ -72,9 +72,9 @@ public class EventBatch {
             return inputEventMap.get(0).asJson();
         }
 
-        StringBuilder jsonBuilder = new StringBuilder();
+        var jsonBuilder = new StringBuilder();
         jsonBuilder.append("[\n");
-        boolean first = true;
+        var first = true;
         for (InputEvent inputEvent : inputEventMap.values()) {
             if (first) {
                 first = false;
@@ -95,7 +95,7 @@ public class EventBatch {
      * @return the event slogan
      */
     private String getEventSlogan(final int eventNumber) {
-        StringBuilder testSloganBuilder = new StringBuilder();
+        var testSloganBuilder = new StringBuilder();
         testSloganBuilder.append(batchNumber);
         testSloganBuilder.append('-');
         testSloganBuilder.append(eventNumber);
diff --git a/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventBatchStats.java b/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventBatchStats.java
index fa5083ed0..d7b9daf14 100644
--- a/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventBatchStats.java
+++ b/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventBatchStats.java
@@ -26,7 +26,6 @@ import java.util.List;
 import lombok.Getter;
 import org.apache.commons.lang3.tuple.ImmutablePair;
 import org.apache.commons.lang3.tuple.Pair;
-import org.onap.policy.apex.testsuites.performance.benchmark.eventgenerator.events.OutputEvent;
 
 /**
  * This POJO class returns statistics on a event batch execution in Apex.
@@ -85,7 +84,7 @@ public class EventBatchStats {
         long accumulatedRoundTripTime = 0;
         long accumulatedApexExecutionTime = 0;
 
-        for (int eventNo = 0; eventNo < batchSize; eventNo++) {
+        for (var eventNo = 0; eventNo < batchSize; eventNo++) {
             Pair<Long, Long> eventTimings = calculateEventTimings(eventBatch, eventNo);
             if (eventTimings == null) {
                 // The event has not been sent yet or the response has not been received yet
@@ -154,7 +153,7 @@ public class EventBatchStats {
         // If an event is in a batch, it has been sent
         eventsSent++;
 
-        OutputEvent outputEvent = eventBatch.getOutputEvent(eventNo);
+        var outputEvent = eventBatch.getOutputEvent(eventNo);
 
         if (outputEvent == null) {
             eventsNotReceived++;
diff --git a/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGenerator.java b/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGenerator.java
index 91f84b66b..51b6c7cae 100644
--- a/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGenerator.java
+++ b/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGenerator.java
@@ -65,7 +65,7 @@ public class EventGenerator {
 
         LOGGER.info("Event generator REST server starting");
 
-        final ResourceConfig rc = new ResourceConfig(EventGeneratorEndpoint.class);
+        final var rc = new ResourceConfig(EventGeneratorEndpoint.class);
         eventGeneratorServer = GrizzlyHttpServerFactory.createHttpServer(getBaseUri(), rc);
 
         // Wait for the HTTP server to come up
@@ -147,7 +147,7 @@ public class EventGenerator {
             LOGGER.info("Starting event generator with arguments: {}", Arrays.toString(args));
         }
 
-        EventGeneratorParameterHandler parameterHandler = new EventGeneratorParameterHandler();
+        var parameterHandler = new EventGeneratorParameterHandler();
 
         EventGeneratorParameters parameters = null;
 
@@ -166,7 +166,7 @@ public class EventGenerator {
         }
 
         // Start the event generator
-        EventGenerator eventGenerator = new EventGenerator(parameters);
+        var eventGenerator = new EventGenerator(parameters);
         LOGGER.info("Event generator started");
 
         // Wait for event generation to finish
diff --git a/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGeneratorEndpoint.java b/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGeneratorEndpoint.java
index 6cbee6935..53e57f295 100644
--- a/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGeneratorEndpoint.java
+++ b/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGeneratorEndpoint.java
@@ -115,7 +115,7 @@ public class EventGeneratorEndpoint {
             return Response.status(204).build();
         }
 
-        EventBatch batch = new EventBatch(parameters.get().getBatchSize(), getApexClient());
+        var batch = new EventBatch(parameters.get().getBatchSize(), getApexClient());
         batchMap.put(batch.getBatchNumber(), batch);
 
         return Response.status(200).entity(batch.getBatchAsJsonString()).build();
@@ -130,7 +130,7 @@ public class EventGeneratorEndpoint {
     @Path("/PostEvent")
     @POST
     public Response postEventResponse(final String jsonString) {
-        final OutputEvent outputEvent = new Gson().fromJson(jsonString, OutputEvent.class);
+        final var outputEvent = new Gson().fromJson(jsonString, OutputEvent.class);
 
         EventBatch batch = batchMap.get(outputEvent.findBatchNumber());
 
diff --git a/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGeneratorParameterHandler.java b/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGeneratorParameterHandler.java
index 912290097..16e72a2b9 100644
--- a/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGeneratorParameterHandler.java
+++ b/testsuites/performance/performance-benchmark-test/src/main/java/org/onap/policy/apex/testsuites/performance/benchmark/eventgenerator/EventGeneratorParameterHandler.java
@@ -2,6 +2,7 @@
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2018 Ericsson. All rights reserved.
  *  Modifications Copyright (C) 2020 Nordix Foundation.
+ *  Modifications Copyright (C) 2021 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.
@@ -99,7 +100,7 @@ public class EventGeneratorParameterHandler {
      * @throws ParseException on parse errors
      */
     public EventGeneratorParameters parse(final String[] args) throws ParseException {
-        CommandLine commandLine = new DefaultParser().parse(options, args);
+        var commandLine = new DefaultParser().parse(options, args);
         final String[] remainingArgs = commandLine.getArgs();
 
         if (remainingArgs.length > 0) {
@@ -110,7 +111,7 @@ public class EventGeneratorParameterHandler {
             return null;
         }
 
-        EventGeneratorParameters parameters = new EventGeneratorParameters();
+        var parameters = new EventGeneratorParameters();
 
         if (commandLine.hasOption('c')) {
             parameters = getParametersFromJsonFile(commandLine.getOptionValue(CONFIGURATION_FILE));
@@ -200,10 +201,10 @@ public class EventGeneratorParameterHandler {
      * @return help string
      */
     public String getHelp(final String mainClassName) {
-        final StringWriter stringWriter = new StringWriter();
-        final PrintWriter stringPrintWriter = new PrintWriter(stringWriter);
+        final var stringWriter = new StringWriter();
+        final var stringPrintWriter = new PrintWriter(stringWriter);
 
-        final HelpFormatter helpFormatter = new HelpFormatter();
+        final var helpFormatter = new HelpFormatter();
         helpFormatter.printHelp(stringPrintWriter, MAX_HELP_LINE_LENGTH, mainClassName + " [options...] ", "", options,
                 0, 0, "");