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Bug
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Resolution: Unresolved
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Minor
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None
Problem
I know that the plugin is not adopted for Jenkins Pipelines yet, but the following line fails with NPE if called properly (with real AbstractBuild children and Launcher as parameters).
final Node node = Computer.currentComputer().getNode();
The root cause lies in the fact that the pipeline-related code is actually executed on the master thread rather than the agent thread, and this leads to the fact that Computer.currentComputer() always returns null.
How to Fix
Simply change that line with the following:
final Node node = build.getBuiltOn();
I am attaching the Groovy class I was using to solve that issue.
It nests the original CustomToolInstallWrapper and only overrides decorateLauncher by changing only the given line (other lines are only changed in case of Groovy code style).
Logs
[c.l.t.u.p.CustomToolInstallWrapperProxy] Wrapping launcher for RunProxy('test-pipeline #109') on Jenkins... [Pipeline] // wrap [Pipeline] } [Pipeline] // stage [Pipeline] } [Pipeline] // node [Pipeline] End of Pipeline java.lang.NullPointerException at com.cloudbees.jenkins.plugins.customtools.CustomToolInstallWrapper.decorateLauncher(CustomToolInstallWrapper.java:169) at com.cloudbees.jenkins.plugins.customtools.CustomToolInstallWrapper$decorateLauncher.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:144) at com.lge.tpci.utils.proxy.AbstractWrapperProxy.decorateLauncher(AbstractWrapperProxy.groovy:166) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSite.invoke(PogoMetaMethodSite.java:169) at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:59) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:51) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:157) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:185) at com.lge.tpci.utils.proxy.AbstractWrapperProxy.wrapContext(AbstractWrapperProxy.groovy:67) at com.lge.tpci.utils.proxy.AbstractWrapperProxy$wrapContext.callCurrent(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:51) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:157) at com.lge.tpci.utils.proxy.AbstractWrapperProxy.setUp(AbstractWrapperProxy.groovy:141) at org.jenkinsci.plugins.workflow.steps.CoreWrapperStep$Execution2.doStart(CoreWrapperStep.java:117) at org.jenkinsci.plugins.workflow.steps.GeneralNonBlockingStepExecution.lambda$run$0(GeneralNonBlockingStepExecution.java:77) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) Finished: FAILURE
