| When running Kubernetes agents, upon shutting them down (not sure how that is related), I sometimes get the following stacktrace
AVERTISSEMENT: failed to shut down 1c62c2d9-920c-479c-94fe-9292dea21a67
java.io.IOException: Remote call on JNLP4-connect connection from localhost/127.0.0.1:53049 failed
at hudson.remoting.Channel.call(Channel.java:1004)
at hudson.Launcher$RemoteLauncher.kill(Launcher.java:1083)
at org.jenkinsci.plugins.workflow.support.steps.ExecutorStepExecution$PlaceholderTask$2.run(ExecutorStepExecution.java:740)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletException
at hudson.util.ProcessTree.get(ProcessTree.java:432)
at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1100)
at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1091)
at hudson.remoting.UserRequest.perform(UserRequest.java:211)
at hudson.remoting.UserRequest.perform(UserRequest.java:54)
at hudson.remoting.Request$2.run(Request.java:369)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:117)
... 1 more
Suppressed: hudson.remoting.Channel$CallSiteStackTrace: Remote call to JNLP4-connect connection from localhost/127.0.0.1:53049
at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1788)
at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:356)
at hudson.remoting.Channel.call(Channel.java:998)
at hudson.Launcher$RemoteLauncher.kill(Launcher.java:1083)
at org.jenkinsci.plugins.workflow.support.steps.ExecutorStepExecution$PlaceholderTask$2.run(ExecutorStepExecution.java:740)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
... 1 more
Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletException
at hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch(RemoteClassLoader.java:811)
at sun.reflect.GeneratedMethodAccessor126.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:931)
at hudson.remoting.Request$2.run(Request.java:369)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at org.jenkinsci.remoting.CallableDecorator.call(CallableDecorator.java:18)
at hudson.remoting.CallableDecoratorList$1.call(CallableDecoratorList.java:21)
at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
at jenkins.security.ImpersonatingExecutorService$2.call(ImpersonatingExecutorService.java:71)
at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
... 1 more
Suppressed: hudson.remoting.Channel$CallSiteStackTrace: Remote call to JNLP4-connect connection to host.docker.internal/192.168.65.2:52872
at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1737)
at hudson.remoting.Request.call(Request.java:202)
at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:288)
at com.sun.proxy.$Proxy5.fetch(Unknown Source)
at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:317)
at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
at hudson.util.ProcessTree.get(ProcessTree.java:432)
at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1100)
at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1091)
at hudson.remoting.UserRequest.perform(UserRequest.java:211)
at hudson.remoting.UserRequest.perform(UserRequest.java:54)
at hudson.remoting.Request$2.run(Request.java:369)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:117)
... 1 more
My interpretation is that loading SlaveComputer on the agent JVM causes ServletException to be pulled (because it is in the signature of several methods of Computer). I believe moving the method over to a separate utility class without ties to ServletException would prevent this problem to occur. |
