Uncaught exception in thread Thread[Thread Group 3-1,6,main]

[karthiklingasamy]

Hi Team
I am testing an application using jmeter version 5.4.1. The web application receives message from MQTT.
So I am using MQTT Connect to establish connection and listening the topic using MQTT Sub Sampler.
Until last few days every thing fine jmeter listen the topic and works fine. Since today(28-Jan-2021) i got the below exception
and jmeter not receive the message from MQQT but at the same time my web application receive the message from MQTT

Software Details:
jmeter Version : 5.4.1
xmeter Jar: mqtt-xmeter-2.0.2-jar-with-dependencies.jar

2021-01-28 13:06:08,069 ERROR o.a.j.JMeter: Uncaught exception in thread Thread[Thread Group 3-1,6,main]
java.lang.StackOverflowError: null
at org.apache.jmeter.threads.JMeterThread.notifyTestListeners(JMeterThread.java:1013) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.threads.JMeterThread$IterationListener.iterationStart(JMeterThread.java:1098) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.GenericController.fireIterationStart(GenericController.java:399) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.GenericController.fireIterEvents(GenericController.java:391) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.GenericController.next(GenericController.java:160) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.LoopController.next(LoopController.java:134) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.LoopController.nextIsNull(LoopController.java:166) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.GenericController.next(GenericController.java:170) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.LoopController.next(LoopController.java:134) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.GenericController.nextIsAController(GenericController.java:225) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.GenericController.next(GenericController.java:175) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.LoopController.next(LoopController.java:134) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.LoopController.nextIsNull(LoopController.java:166) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.GenericController.next(GenericController.java:170) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.LoopController.next(LoopController.java:134) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.GenericController.nextIsAController(GenericController.java:225) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.GenericController.next(GenericController.java:175) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.LoopController.next(LoopController.java:134) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.LoopController.nextIsNull(LoopController.java:166) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.GenericController.next(GenericController.java:170) ~[ApacheJMeter_core.jar:5.4.1]
at org.apache.jmeter.control.LoopController.next(LoopController.java:134) ~[ApacheJMeter_core.jar:5.4.1]