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Type:
Bug
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Resolution: Cannot Reproduce
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Priority:
Minor
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Component/s: core
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Environment:Jenkins version 2.131
Hi.
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My Jenkins instance worked fine until I tried to restart it today. The log files says this when I run "service jenkins restart":
Jul 23, 2018 9:09:27 AM hudson.init.impl.InstallUncaughtExceptionHandler$DefaultUncaughtExceptionHandler uncaughtException SEVERE: A thread (Thread-6/40) died unexpectedly due to an uncaught exception, this may leave your Jenkins in a bad way and is usually indicative of a bug in the code. java.lang.NullPointerException: Cannot invoke method toInteger() on null object at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:91) at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:48) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48) at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:35) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117) at tcp-slave-agent-port$_run_closure1.doCall(tcp-slave-agent-port.groovy:9) at tcp-slave-agent-port$_run_closure1.doCall(tcp-slave-agent-port.groovy) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325) at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022) at groovy.lang.Closure.call(Closure.java:414) at groovy.lang.Closure.call(Closure.java:408) at groovy.lang.Closure.run(Closure.java:495) at java.lang.Thread.run(Thread.java:748)
I recently upgraded from version 2.129 (if I recall correctly) to 2.131. I believe this is not the first restart after the upgrade, but I'm not sure. environment variable
This StackOverflow post indicates that this has something to do with a missing JENKINS_SLAVE_AGENT_PORT }}environment variable, {{}}but to the best of my knowledge I've not made any configuration changes to Jenkins or the Debian 9 server running Jenkins.{{
