Hi All, I am getting below error in JMeter. When I run the test with more than 10 users, Basically I am running a few Websocket requests using the WebSocket plugin (WebSocket Samplers by Peter Doornbosch). Any suggestions on how to fix this?
java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at java.lang.String.substring(Unknown Source) ~[?:1.8.0_261] at org.apache.jmeter.samplers.SampleResult.getSampleLabel(SampleResult.java:586) ~[ApacheJMeter_core.jar:5.3] at org.apache.jmeter.visualizers.StatVisualizer.add(StatVisualizer.java:118) ~[ApacheJMeter_components.jar:5.3] at org.apache.jmeter.reporters.ResultCollector.sendToVisualizer(ResultCollector.java:570) ~[ApacheJMeter_core.jar:5.3] at org.apache.jmeter.reporters.ResultCollector.sampleOccurred(ResultCollector.java:547) ~[ApacheJMeter_core.jar:5.3] at org.apache.jmeter.threads.ListenerNotifier.notifyListeners(ListenerNotifier.java:58) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.TransactionController.notifyListeners(TransactionController.java:296) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.TransactionController.nextWithoutTransactionSampler(TransactionController.java:223) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.TransactionController.next(TransactionController.java:135) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.GenericController.nextIsAController(GenericController.java:224) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.TransactionController.nextIsAController(TransactionController.java:173) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.GenericController.next(GenericController.java:174) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.TransactionController.nextWithoutTransactionSampler(TransactionController.java:205) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.TransactionController.next(TransactionController.java:135) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.GenericController.nextIsAController(GenericController.java:221) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.GenericController.next(GenericController.java:174) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.LoopController.next(LoopController.java:134) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.GenericController.nextIsAController(GenericController.java:224) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.GenericController.next(GenericController.java:174) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.control.LoopController.next(LoopController.java:134) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.threads.AbstractThreadGroup.next(AbstractThreadGroup.java:91) [ApacheJMeter_core.jar:5.3] at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:291) [ApacheJMeter_core.jar:5.3] at java.lang.Thread.run(Unknown Source) [?:1.8.0_261] Thanks, Niraj
