[jira] [Created] (KARAF-5481) NullPointer when invoking Karaf.stop()

["Fabian Lange (JIRA)" <ji...@apache.org>]

Fabian Lange created KARAF-5481:
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             Summary: NullPointer when invoking Karaf.stop()
                 Key: KARAF-5481
                 URL: https://issues.apache.org/jira/browse/KARAF-5481
             Project: Karaf
          Issue Type: Bug
            Reporter: Fabian Lange


customer sees this when they run a package upgrade of our karaf distribution

```Nov 12 04:15:54 karaf[21250]: Exception in thread "main" java.lang.NullPointerException
Nov 12 04:15:54 karaf[21250]: at org.apache.karaf.main.Stop.main(Stop.java:60)```

https://github.com/apache/karaf/blob/master/main/src/main/java/org/apache/karaf/main/Stop.java#L60

We have the feeling this is kind of a race condition between sending the stop command and deleting the file which contains the stop command.

whats your thoughts? shouldn'T we at least ensure that `config.shutdownCommand` is non null?





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