I'm using M2E 0.13.0.201105171436 with Eclipse 3.7 RC1. I'm trying to import a project that uses the ANTLR3 plugin (see attached test project). M2E offers to download the antlr3 project configurator, but then I get the following exception during import:
java.lang.IncompatibleClassChangeError: Expecting non-static method org.eclipse.m2e.core.MavenPlugin.getMaven()Lorg/eclipse/m2e/core/embedder/IMaven;
at org.sonatype.m2e.antlr.internal.AntlrBuildParticipant.build(AntlrBuildParticipant.java:36)
at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:179)
at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:728)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239)
at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295)
at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374)
at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
