Investigation of the test failures of Hudson on Hudson revealed that

the plxus/components.xml of maven-interceptor and maven2.1-interceptor
are picked up in the MavenEmbedder while parsing POM, which breaks
Maven 2.0.7 (that is, I needed to run the tests on Maven 2.0.7 to reproduce
the problem.)

So I'm adding the marker file so that our MaskedClassLoader can hide
them from Plexus when we start MavenEmbedder.

I hate making this kind of change in the RC branch, and this problem
doesn't appear to affect my RC deployment so far (so maybe this only
reproduces when we run Hudson inside Maven), but OTOH this should be
a fairly low risk change.


git-svn-id: https://hudson.dev.java.net/svn/hudson/branches/rc@18126 71c3de6d-444a-0410-be80-ed276b4c234a