NPE when plugins throw certain exceptions
-----------------------------------------
Key: MNG-1354
URL: http://jira.codehaus.org/browse/MNG-1354
Project: Maven 2
Type: Bug
Components: maven-core
Versions: 2.0
Reporter: Mark Hobson
Regularly see this, although it's entirely obvious why looking at the source:
java.lang.NullPointerException
at
org.apache.maven.usability.diagnostics.DiagnosisUtils.appendRootCauseIfPresentAndUnique(DiagnosisUtils.java:89)
at
org.apache.maven.usability.diagnostics.ErrorDiagnostics$PuntErrorDiagnoser.diagnose(ErrorDiagnostics.java:132)
at
org.apache.maven.usability.diagnostics.ErrorDiagnostics.diagnose(ErrorDiagnostics.java:104)
at org.apache.maven.DefaultMaven.logDiagnostics(DefaultMaven.java:693)
at org.apache.maven.DefaultMaven.logFatal(DefaultMaven.java:627)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:143)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
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:585)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Can spend time creating a testcase if it's not immediately obvious.
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