Re: [m2e-users] Errors running builder 'Maven Project Builder' on projec

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Re: [m2e-users] Errors running builder 'Maven Project Builder' on project 'X'

From: "MEYER, Julien" <j-meyer@xxxxxxxxx>
Date: Thu, 23 Oct 2014 13:11:20 +0000
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Hi Anto,

Thanks for your advices. I searched in the 0.log file as you told me but I didn’t find any stacktrace of a NPE. In fact, I don’t know were I must set the log debug severity (I mean inside the file). Could you make me a little example ?

Thanks.

-Julien.

De : m2e-users-bounces@xxxxxxxxxxx [mailto:m2e-users-bounces@xxxxxxxxxxx] De la part de Anton Tanasenko
Envoyé : jeudi 23 octobre 2014 12:13
À : Maven Integration for Eclipse users mailing list
Objet : Re: [m2e-users] Errors running builder 'Maven Project Builder' on project 'X'

Hi,

It does seem that m2e BuildProblemInfo cannot cope with nulls in exception error message and fails to log the root problem.

Until this is fixed, you can consult the 0.log file in <workspace>/.metadata/.plugins/org.eclipse.m2e.logback.configuration but since

mojo execution exceptions are logged with debug severity, you should enable that in logback config in the same dir.

Most probably there's an NPE from somewhere.

2014-10-23 12:47 GMT+03:00 MEYER, Julien <j-meyer@xxxxxxxxx>:

Hi everyone,

I am having trouble using the new Eclipse Luna 4.4 SR1 with my m2e plugins. The thing is that when I am saving a JSP file (or whatever) followed by a project build (Project > Build Project), eclipse raised an exception that I really don’t unterstand. It happens when I am copying files from one project to another too.

I’ve searched for hours but I didn’t fight the right answer of my questions in the web so I thought you guys could help me.

Here is the stack trace of the exception I am fighting with :

« Message : Errors running builder 'Maven Project Builder' on project 'efluid-webapp'.

!ENTRY org.eclipse.core.resources 4 2 2014-10-23 11:26:54.575

!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.core.resources".

!STACK 0

java.lang.NullPointerException

at java.lang.StringBuilder.<init>(Unknown Source)

at org.eclipse.m2e.core.internal.builder.BuildProblemInfo.formatMessage(BuildProblemInfo.java:27)

at org.eclipse.m2e.core.internal.builder.BuildProblemInfo.<init>(BuildProblemInfo.java:23)

at org.eclipse.m2e.core.internal.builder.MavenBuilderImpl.processBuildResults(MavenBuilderImpl.java:312)

at org.eclipse.m2e.core.internal.builder.MavenBuilderImpl.build(MavenBuilderImpl.java:174)

at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:172)

at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:1)

at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1$1.call(MavenBuilder.java:115)

at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)

at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:112)

at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1.call(MavenBuilder.java:105)

at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)

at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)

at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)

at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.execute(MavenBuilder.java:86)

at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:200)

at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:734)

at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206)

at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:246)

at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:299)

at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:302)

at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:358)

at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:381)

at org.eclipse.core.internal.resources.Workspace.buildInternal(Workspace.java:496)

at org.eclipse.core.internal.resources.Workspace.build(Workspace.java:405)

at org.eclipse.ui.actions.GlobalBuildAction$1.run(GlobalBuildAction.java:180)

at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

!ENTRY org.eclipse.core.resources 4 75 2014-10-23 11:26:54.577

!MESSAGE Errors occurred during the build.

!SUBENTRY 1 org.eclipse.m2e.core 4 75 2014-10-23 11:26:54.577

!MESSAGE Errors running builder 'Maven Project Builder' on project 'efluid-webapp'.