On 09/28/2015 04:25 PM, Markus Koschany wrote: (snip)
I think you hit a common issue with Eclipse. The update mechanism provided by Eclipse is not really compatible with Debian's packaging system. Often it just works but sometimes you will experience weird bugs due to incompatible versions. The only way to debug such a problem is to deinstall all downloaded Eclipse plugins.
I understand that this might not be a satisfactory answer but the only way to avoid such bugs is to disable Eclipse's way of updating plugins and to use the provided Debian packages whenever possible.
Aha, thank you very much for these clues. I wiped out everything in the plugins directory in ~/.eclipse and anything related to m2e, then reinstalled the maven add-on, and now I can see the XML stuff and the Maven stuff both in Eclipse's UI! I guess I'd request Debian packaging of the m2e Eclipse stuff so I don't have to touch the non-Debian add-on sites at all but overall I am now much happier and I appreciate your help. I'll try to avoid non-Debian offered updates in future and use the add-on sites only when necessary. Cheers, Mark The University of Dundee is a registered Scottish Charity, No: SC015096 __ This is the maintainer address of Debian's Java team <http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-java-maintainers>. Please use debian-j...@lists.debian.org for discussions and questions.