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https://jira.codehaus.org/browse/MFINDBUGS-149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=278069#comment-278069
 ] 

Garvin LeClaire commented on MFINDBUGS-149:
-------------------------------------------

Do you have a project you can share that reproduces this error?  All the 
Integration tests pass so I would like to have a sample I can add to the 
integration tests.

> FindBugsMojo#executeFindBugs throws NPE
> ---------------------------------------
>
>                 Key: MFINDBUGS-149
>                 URL: https://jira.codehaus.org/browse/MFINDBUGS-149
>             Project: Maven 2.x FindBugs Plugin
>          Issue Type: Bug
>    Affects Versions: 2.3.3
>            Reporter: Kojima Takanori
>         Attachments: error.log, FindBugsMojo.goovy.patch
>
>
> I hit a bug when I using 2.3.3-SNAPSHOT (trunk build).
> Here is a stacktrace:
> {code}
> Caused by: java.lang.NullPointerException: Cannot invoke method replaceAll() 
> on null object
>         at 
> org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:77)
>         at 
> org.codehaus.groovy.runtime.InvokerHelper.invokePogoMethod(InvokerHelper.java:756)
>         at 
> org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:730)
>         at 
> org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodN(ScriptBytecodeAdapter.java:170)
>         at 
> org.codehaus.mojo.findbugs.FindBugsMojo.getResourceFile(FindBugsMojo.groovy:1060)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at 
> org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)
>         at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:230)
>         at 
> org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:338)
>         at 
> org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnCurrentN(ScriptBytecodeAdapter.java:78)
>         at 
> org.codehaus.mojo.findbugs.FindBugsMojo$_executeFindbugs_closure4_closure13.doCall(FindBugsMojo.groovy:839)
> {code}
> Parhaps, there is a side effect of MFINDBUGS-146.
> I made a quick-hack patch, please check.

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