Websocket Sampler error - java.base/java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:970)

Issue #258 invalid
Former user created an issue

I am using Websocket Sampler plugin in JMeter but getting below error during test execution.

Unexpected error: null java.base/java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:970) java.base/java.util.LinkedList$ListItr.next(LinkedList.java:892) JMeter.plugins.functional.samplers.websocket.ServiceSocket.getResponseMessage(ServiceSocket.java:149) JMeter.plugins.functional.samplers.websocket.WebSocketSampler.sample(WebSocketSampler.java:159) org.apache.jmeter.threads.JMeterThread.doSampling(JMeterThread.java:651) org.apache.jmeter.threads.JMeterThread.executeSamplePackage(JMeterThread.java:570) org.apache.jmeter.threads.JMeterThread.processSampler(JMeterThread.java:501) org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:268) java.base/java.lang.Thread.run(Thread.java:1589)``

Comments (2)

  1. Peter Doornbosch repo owner

    The stacktrace indicates that you are using a different WebSocket plugin (the package JMeter.plugins.functional.samplers.websocket does not exist in this plugin).

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