CODEWITHSUNDEEP
javajenkinsjenkins-plugins
JordanGS
JordanGS

Reputation: 4496

Jenkins getDescriptor() returns NullPointerException

My descriptor populates two lists, i am trying to call the descriptor with the following:

ZAPDriverDescriptorImpl zapDriver = getDescriptor();

then i call

zapDriver.getAllFormats() and zapDriver.getAllExportFormats()) to obtain the two lists. I concatenate them into list with only the unique elements.

Full class can be found on GitHub

The problem is that this works when i'm running jenkins locally (only on the master) but when i do a master-slave, this code would execute on the slave and run into a NullPointerException

ERROR: java.lang.NullPointerException
    at hudson.model.AbstractDescribableImpl.getDescriptor(AbstractDescribableImpl.java:41)
    at com.github.jenkinsci.zaproxyplugin.ZAPDriver.getDescriptor(ZAPDriver.java:2435)
    at com.github.jenkinsci.zaproxyplugin.ZAPDriver.deleteReports(ZAPDriver.java:815)
    at com.github.jenkinsci.zaproxyplugin.ZAPDriver.executeZAP(ZAPDriver.java:1141)
    at com.github.jenkinsci.zaproxyplugin.ZAPBuilder$ZAPDriverCallable.invoke(ZAPBuilder.java:362)
    at com.github.jenkinsci.zaproxyplugin.ZAPBuilder$ZAPDriverCallable.invoke(ZAPBuilder.java:1)
    at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2720)
    at hudson.remoting.UserRequest.perform(UserRequest.java:121)
    at hudson.remoting.UserRequest.perform(UserRequest.java:49)
    at hudson.remoting.Request$2.run(Request.java:326)
    at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at hudson.remoting.Engine$1$1.run(Engine.java:69)
    at java.lang.Thread.run(Thread.java:745)

Upvotes: 0

Views: 619

Answers (1)

Larry B.
Larry B.

Reputation: 753

You're calling Jenkins.getInstance() from a slave executor. It's not available there because slave machines don't run a Jenkins instance.

Upvotes: 1

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