JMS Point to Point Jmeter Load Testing - NoInitialContextException - jmeter

Question

I was trying to test JMS using Jmeter and was trying to run it in local, but keep getting the error:
Response message: javax.naming.NoInitialContextException: Cannot instantiate class: org.apache.activemq.jndi.ActiveMQInitialContextFactory [Root exception is java.lang.ClassNotFoundException: org.apache.activemq.jndi.ActiveMQInitialContextFactory]
I have already added the activemq-all.jar file in lib folder of jmeter, which should have resolved the issue, but it remains.
Please help me understand if I am missing something. Thanks.
Below is my jmx file content for the test plan:
<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="5.0" jmeter="5.0 r1840935">
<hashTree>
<TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="JMS P2P Load Test" enabled="true">
<stringProp name="TestPlan.comments"></stringProp>
<boolProp name="TestPlan.functional_mode">false</boolProp>
<boolProp name="TestPlan.tearDown_on_shutdown">true</boolProp>
<boolProp name="TestPlan.serialize_threadgroups">false</boolProp>
<elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables" enabled="true">
<collectionProp name="Arguments.arguments"/>
</elementProp>
<stringProp name="TestPlan.user_define_classpath"></stringProp>
</TestPlan>
<hashTree>
<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="JMSTestPlan-P2P" enabled="true">
<stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
<elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller" enabled="true">
<boolProp name="LoopController.continue_forever">false</boolProp>
<stringProp name="LoopController.loops">2</stringProp>
</elementProp>
<stringProp name="ThreadGroup.num_threads">1</stringProp>
<stringProp name="ThreadGroup.ramp_time">0</stringProp>
<boolProp name="ThreadGroup.scheduler">false</boolProp>
<stringProp name="ThreadGroup.duration"></stringProp>
<stringProp name="ThreadGroup.delay"></stringProp>
</ThreadGroup>
<hashTree>
<JMSSampler guiclass="JMSSamplerGui" testclass="JMSSampler" testname="JMS Point-to-Point" enabled="true">
<stringProp name="JMSSampler.queueconnectionfactory">ConnectionFactory</stringProp>
<stringProp name="JMSSampler.SendQueue">Q.REQ</stringProp>
<stringProp name="JMSSampler.ReceiveQueue">Q.REQ</stringProp>
<intProp name="JMSSampler.communicationStyle">0</intProp>
<boolProp name="JMSSampler.isNonPersistent">false</boolProp>
<boolProp name="JMSSampler.useReqMsgIdAsCorrelId">true</boolProp>
<stringProp name="JMSSampler.timeout">2000</stringProp>
<stringProp name="JMSSampler.jmsNumberOfSamplesToAggregate"></stringProp>
<stringProp name="HTTPSamper.xml_data">Testing point to point</stringProp>
<stringProp name="JMSSampler.initialContextFactory">org.apache.activemq.jndi.ActiveMQInitialContextFactory</stringProp>
<stringProp name="JMSSampler.contextProviderUrl">tcp://localhost:61616</stringProp>
<elementProp name="JMSSampler.jndiProperties" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables" enabled="true">
<collectionProp name="Arguments.arguments">
<elementProp name="queue.Q.REQ" elementType="Argument">
<stringProp name="Argument.name">queue.Q.REQ</stringProp>
<stringProp name="Argument.value">example.A</stringProp>
<stringProp name="Argument.metadata">=</stringProp>
</elementProp>
</collectionProp>
</elementProp>
<elementProp name="arguments" elementType="JMSProperties">
<collectionProp name="JMSProperties.properties"/>
</elementProp>
<boolProp name="JMSSampler.useResMsgIdAsCorrelId">true</boolProp>
</JMSSampler>
<hashTree/>
<ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="View Results Tree" enabled="true">
<boolProp name="ResultCollector.error_logging">false</boolProp>
<objProp>
<name>saveConfig</name>
<value class="SampleSaveConfiguration">
<time>true</time>
<latency>true</latency>
<timestamp>true</timestamp>
<success>true</success>
<label>true</label>
<code>true</code>
<message>true</message>
<threadName>true</threadName>
<dataType>true</dataType>
<encoding>false</encoding>
<assertions>true</assertions>
<subresults>true</subresults>
<responseData>false</responseData>
<samplerData>false</samplerData>
<xml>false</xml>
<fieldNames>true</fieldNames>
<responseHeaders>false</responseHeaders>
<requestHeaders>false</requestHeaders>
<responseDataOnError>false</responseDataOnError>
<saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
<assertionsResultsToSave>0</assertionsResultsToSave>
<bytes>true</bytes>
<sentBytes>true</sentBytes>
<url>true</url>
<threadCounts>true</threadCounts>
<idleTime>true</idleTime>
<connectTime>true</connectTime>
</value>
</objProp>
<stringProp name="filename"></stringProp>
</ResultCollector>
<hashTree/>
</hashTree>
</hashTree>
</hashTree>
</jmeterTestPlan>

Answer 1

Your test plan looks good, most probably you forgot one little step: you need to restart JMeter in order to pick up the new .jars from its classpath
If you want quickly test a .jar without JMeter restart you can add on Test Plan level
You might also be interested in Building a JMS Testing Plan - Apache JMeter guide which covers JMeter official documentation on JMS testing gaps.