Hello,
We are using Jenkins 2.479.3 LTS, it seems that Windows agent disconnecting randomly with below errors:
Remoting version: 3261.v9c670a_4748a_9
Launcher: JNLPLauncher
Communication Protocol: JNLP4-connect
This is a Windows agent
Updating existing installations for
ERROR: Unexpected error in launching an agent. This is probably a bug in Jenkins
java.lang.NoSuchMethodException: java.lang.Class.getDeclaredFields0(boolean)
at java.base/java.lang.Class.newNoSuchMethodException(Class.java:660)
at java.base/java.lang.Class.throwExceptionOrReturnNull(Class.java:1460)
at java.base/java.lang.Class.getMethodHelper(Class.java:1557)
at java.base/java.lang.Class.getDeclaredMethod(Class.java:1132)
at org.jenkinsci.plugins.envinject.service.EnvInjectMasterEnvVarsSetter.getModifiers(EnvInjectMasterEnvVarsSetter.java:28)
at org.jenkinsci.plugins.envinject.service.EnvInjectMasterEnvVarsSetter.call(EnvInjectMasterEnvVarsSetter.java:67)
Also: hudson.remoting.Channel$CallSiteStackTrace: Remote call to JNLP4-connect connection from /:56595
at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1923)
at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:384)
at hudson.remoting.Channel.call(Channel.java:1112)
at hudson.FilePath.act(FilePath.java:1319)
at PluginClassLoader for envinject//org.jenkinsci.plugins.envinject.EnvInjectComputerListener.onOnline(EnvInjectComputerListener.java:144)
at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:751)
at jenkins.slaves.DefaultJnlpSlaveReceiver.afterChannel(DefaultJnlpSlaveReceiver.java:176)
at org.jenkinsci.remoting.engine.JnlpConnectionState.fire(JnlpConnectionState.java:336)
at org.jenkinsci.remoting.engine.JnlpConnectionState.fireAfterChannel(JnlpConnectionState.java:427)
at org.jenkinsci.remoting.engine.JnlpProtocol4Handler$Handler.lambda$onChannel$0(JnlpProtocol4Handler.java:354)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:68)
at jenkins.util.ErrorLoggingExecutorService.lambda$wrap$0(ErrorLoggingExecutorService.java:51)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
Caused: java.lang.RuntimeException
at org.jenkinsci.plugins.envinject.service.EnvInjectMasterEnvVarsSetter.call(EnvInjectMasterEnvVarsSetter.java:74)
at org.jenkinsci.plugins.envinject.service.EnvInjectMasterEnvVarsSetter.call(EnvInjectMasterEnvVarsSetter.java:19)
at hudson.remoting.UserRequest.perform(UserRequest.java:225)
at hudson.remoting.UserRequest.perform(UserRequest.java:50)
at hudson.remoting.Request$2.run(Request.java:391)
at hudson.remoting.InterceptingExecutorService.lambda$wrap$0(InterceptingExecutorService.java:81)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:140)
at java.base/java.lang.Thread.run(Thread.java:857)
Could you please have a look at above logs and suggest fix for it ? Thanks in advance