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

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

From: "MEYER, Julien" <j-meyer@xxxxxxxxx>
Date: Thu, 23 Oct 2014 09:47:44 +0000
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Thread-topic: Errors running builder 'Maven Project Builder' on project 'X'

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'.