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Jenkins JNLP4-connect connection from xxx.xxx.xxx.xxx failed after the success of build procedure

I got a failure after all the build procedure were finished without any errors.

And I don't know why below error has occurred.

This error has marked the status of a job as a failure even all the tests were successfully finished. FATAL: Remote call on JNLP4-connect connection from socautovm1.xxx.local/192.168.114.144:65033 failed Also: hudson.remoting.Channel$CallSiteStackTrace: Remote call to JNLP4-connect connection from socautovm1.xxx.local/192.168.114.144:65033

at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1741)
        at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:357)
        at hudson.remoting.Channel.call(Channel.java:955)
        at hudson.Launcher$RemoteLauncher.kill(Launcher.java:1078)
        at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:510)
        at hudson.model.Run.execute(Run.java:1815)
        at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
        at hudson.model.ResourceController.execute(ResourceController.java:97)
        at hudson.model.Executor.run(Executor.java:429)
java.lang.NoClassDefFoundError: Could not initialize class hudson.slaves.SlaveComputer
    at hudson.util.ProcessTree.get(ProcessTree.java:399)
    at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1090)
    at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1081)
    at hudson.remoting.UserRequest.perform(UserRequest.java:212)
    at hudson.remoting.UserRequest.perform(UserRequest.java:54)
    at hudson.remoting.Request$2.run(Request.java:369)
    at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:93)
    at java.lang.Thread.run(Unknown Source)
Caused: java.io.IOException: Remote call on JNLP4-connect connection from socautovm1.xxx.local/192.168.114.144:65033 failed
    at hudson.remoting.Channel.call(Channel.java:961)
    at hudson.Launcher$RemoteLauncher.kill(Launcher.java:1078)
    at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:510)
    at hudson.model.Run.execute(Run.java:1815)
    at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
    at hudson.model.ResourceController.execute(ResourceController.java:97)
    at hudson.model.Executor.run(Executor.java:429)
I was having a similar issue when trying to run a Job on Jenkins that fetches the list of containers on a Slave node.
Whenever I run the job I get the error below:
ERROR: Issue with creating launcher for agent Linux1(Docker). The agent is being disconnected
[EnvInject] - Loading node environment variables.
ERROR: SEVERE ERROR occurs
org.jenkinsci.lib.envinject.EnvInjectException: hudson.remoting.ChannelClosedException: Channel "unknown": Remote call on Linux1(Docker) failed. The channel is closing down or has closed down
Here's how I fixed it:
I simply restarted the Jenkins service on the main/master node.
For Windows servers:
Search for Services and then locate the Jenkins service and restart it.
For Linux servers:
You might need to use Systemd (sudo systemctl restart jenkins)
That's all.
I hope this helps
        
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