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https://issues.apache.org/jira/browse/NETBEANS-2384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16821417#comment-16821417
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Tobias Warneke commented on NETBEANS-2384:
------------------------------------------

My wish is, that Netbeans should not be so fragile regarding those project 
structures. My thinking is, that you cannot guess all possible project 
structures. Therefore Netbeans should be as stable as possible regarding this.

May I help? Would it be enough the sourcecode line above to modify to check for 
prj not to be null? Or are there any side effects in place?

> multi module maven build stops with exception
> ---------------------------------------------
>
>                 Key: NETBEANS-2384
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-2384
>             Project: NetBeans
>          Issue Type: Bug
>          Components: projects - Maven
>    Affects Versions: 11.0
>            Reporter: Tobias Warneke
>            Priority: Critical
>         Attachments: ide.log.txt, mavenproject4.zip, screenshot-1.png, 
> screenshot-2.png, screenshot-3.png
>
>
> Using Netbeans 10, it works.
>  
>  
> SEVERE [org.openide.util.RequestProcessor]: Error in RequestProcessor 
> org.netbeans.modules.maven.execute.CommandLineOutputHandler$Output
> java.lang.NullPointerException
>  at 
> org.netbeans.modules.maven.api.PluginPropertyUtils.createEvaluator(PluginPropertyUtils.java:511)
>  at 
> org.netbeans.modules.maven.output.TestOutputListenerProvider.processLine(TestOutputListenerProvider.java:127)
>  at 
> org.netbeans.modules.maven.execute.AbstractOutputHandler.processLine(AbstractOutputHandler.java:293)
>  at 
> org.netbeans.modules.maven.execute.CommandLineOutputHandler$Output.run(CommandLineOutputHandler.java:330)
>  at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
>  at 
> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
>  at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
> [catch] at 
> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
> INFO [org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater]: 
> Resolving dependencies took: 56 ms



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