2 errors; which is first?

[Andreas Tscharner]

Hello World,

Setup:
master: Jenkins 2.60.3 on Debian 9
agents: Windows 7 in VMs

I sometimes have the following error:

ERROR: Issue with creating launcher for agent build-vm6. The agent has
not been fully initialized yet

and then at the end of the console output:

java.nio.channels.ClosedChannelException
at
org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.onReadClosed(ChannelApplicationLayer.java:208)
at
org.jenkinsci.remoting.protocol.ApplicationLayer.onRecvClosed(ApplicationLayer.java:222)
at
org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.onRecvClosed(ProtocolStack.java:832)
at
org.jenkinsci.remoting.protocol.FilterLayer.onRecvClosed(FilterLayer.java:287)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.onRecvClosed(SSLEngineFilterLayer.java:181)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.switchToNoSecure(SSLEngineFilterLayer.java:283)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.processWrite(SSLEngineFilterLayer.java:503)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.processQueuedWrites(SSLEngineFilterLayer.java:248)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.doSend(SSLEngineFilterLayer.java:200)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.doCloseSend(SSLEngineFilterLayer.java:213)
at
org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doCloseSend(ProtocolStack.java:800)
at
org.jenkinsci.remoting.protocol.ApplicationLayer.doCloseWrite(ApplicationLayer.java:173)
at
org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer$ByteBufferCommandTransport.closeWrite(ChannelApplicationLayer.java:311)
at hudson.remoting.Channel.close(Channel.java:1295)
at hudson.slaves.ChannelPinger$1.onDead(ChannelPinger.java:180)
at hudson.remoting.PingThread.ping(PingThread.java:130)
at hudson.remoting.PingThread.run(PingThread.java:86)
Caused: hudson.remoting.RequestAbortedException
at hudson.remoting.Request.abort(Request.java:307)
at hudson.remoting.Channel.terminate(Channel.java:896)
at
org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.onReadClosed(ChannelApplicationLayer.java:208)
at
org.jenkinsci.remoting.protocol.ApplicationLayer.onRecvClosed(ApplicationLayer.java:222)
at
org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.onRecvClosed(ProtocolStack.java:832)
at
org.jenkinsci.remoting.protocol.FilterLayer.onRecvClosed(FilterLayer.java:287)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.onRecvClosed(SSLEngineFilterLayer.java:181)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.switchToNoSecure(SSLEngineFilterLayer.java:283)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.processWrite(SSLEngineFilterLayer.java:503)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.processQueuedWrites(SSLEngineFilterLayer.java:248)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.doSend(SSLEngineFilterLayer.java:200)
at
org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.doCloseSend(SSLEngineFilterLayer.java:213)
at
org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doCloseSend(ProtocolStack.java:800)
at
org.jenkinsci.remoting.protocol.ApplicationLayer.doCloseWrite(ApplicationLayer.java:173)
at
org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer$ByteBufferCommandTransport.closeWrite(ChannelApplicationLayer.java:311)
at hudson.remoting.Channel.close(Channel.java:1295)
at hudson.slaves.ChannelPinger$1.onDead(ChannelPinger.java:180)
at hudson.remoting.PingThread.ping(PingThread.java:130)
at hudson.remoting.PingThread.run(PingThread.java:86)
at ......remote call to JNLP4-connect connection from
build-vm6/192.168.168.165:1034(Native Method)
at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1545)
at hudson.remoting.Request.call(Request.java:172)
at hudson.remoting.Channel.call(Channel.java:829)
at hudson.FilePath.act(FilePath.java:987)
at hudson.FilePath.act(FilePath.java:976)
at hudson.FilePath.mkdirs(FilePath.java:1159)
at hudson.plugins.git.GitSCM.createClient(GitSCM.java:745)
at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1109)
at
org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:113)
at
org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:85)
at
org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:75)
at
org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1$1.call(AbstractSynchronousNonBlockingStepExecution.java:47)
at hudson.security.ACL.impersonate(ACL.java:260)
at
org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1.run(AbstractSynchronousNonBlockingStepExecution.java:44)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
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 java.lang.Thread.run(Thread.java:748)
Finished: FAILURE


My question here: Which error caused the other one and why?

TIA and best regards
Andreas
--
Andreas Tscharner sterne...@gmail.com

Gordon's Law:
If you think you have the solution, the question was poorly phrased.