For what it's worth, I ran into this yesterday.
> Tom Mueller <mailto:Tom.Mueller_at_oracle.com>
> January 31, 2013 12:27 PM
> Me too. You are the first person I've heard of that is also seeing this.
> Jean and I were discussing this last week, trying to figure out what
> triggers this but have not been able to find anything.
>
> Do you also get this message?
>
> [INFO] Surefire report directory:
> /Users/tomuell/ws/cloudlogic/main/nucleus/core/context-propagation/target/surefire-reports
>
> java.lang.RuntimeException:
> com.sun.tools.attach.AttachNotSupportedException: Unable to open
> socket file: target process not responding or HotSpot VM not loaded
>
> Tom
>
>
>
> Marina Vatkina <mailto:marina.vatkina_at_oracle.com>
> January 31, 2013 12:21 PM
> I have been seeing this error for some time. The build succeeds
> (usually) after I run it again:
>
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-surefire-plugin:2.4.3:test
> (default-test) on project context-propagation:
> org.junit.runner.Runner; nested exception is
> java.lang.NoClassDefFoundError: org.junit.runner.Runner -> [Help 1]
>
> -marina