Hi, This seems like https://bugs.eclipse.org/bugs/show_bug.cgi?id=547340 . Please try updating to a more recent build of Eclipse m2e (using https://download.eclipse.org/technology/m2e/snapshots/1.12.0/latest/ p2 repo), and if you see further issues with that version, please reopen the m2e bug with steps to reproduce.
Cheers
