Now someone might have some more insight here because this failure didn't crop up until yesterday.
About 3 months ago maven-archiver was changed so that the client was responsible for setting
the archiver implementation using:
archiver.setArchiver( new JarArchiver() );
But this code is something that I just added to the PackagingMojo.java file. Using -X says that
version 2.0 of maven-archiver is being used so I'm not exactly sure what is going on here. An
older version of maven-archiver set up its archiver internally so I suppose it might be possible
that something older then 2.0 was being used but this IT should have broken long ago looking
at the code in the PackagingMojo.
git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@367632 13f79535-47bb-0310-9956-ffa450edef68