J. Brébec created KARAF-5296:
--------------------------------

             Summary: The command "shell:watch" fails with a NPE
                 Key: KARAF-5296
                 URL: https://issues.apache.org/jira/browse/KARAF-5296
             Project: Karaf
          Issue Type: Bug
          Components: karaf-shell
    Affects Versions: 4.1.2
            Reporter: J. Brébec
            Priority: Minor


The command "shell:watch" fails with a NPE :

{code}
java.lang.NullPointerException
        at org.apache.felix.gogo.jline.Posix.lambda$watch$6(Posix.java:872)
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
{code}

Reproduced on a fresh Karaf 4.1.2 instances, on Windows 7, with various "watch" 
tests (watch list, watch scr:components, ..)



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