Hi everyone, We have a new packaging draft available[1] on Fedora wiki. These changes are not final, just a proposal and I'd welcome feedback about possible problems for projects being packaged on top of Fedora (and by extension future RHELs). Executive summary of proposed changes (listed from the top of diff[2]): * Requirement to place multiple jars into subdirectories will be lifted (still optionally allowed though) * Addition of guidelines for compatibility packages (i.e packaging multiple versions of library already present in the system) * Maven2 references/templates removed * We will use mvn-rpmbuild package (or possibly verify) instead of install to simplify build dependencies * Better explanation of %add_maven_depmap macro and its usage * Addition of %pom_* macros for modifying pom.xml files instead of using patches (useful when removing dependencies or disabling submodules) * Java EE API packaging guidelines. Basically we will pick one implementation for each API and only that will be allowed to have "Provides: javax.XXX". API usage is a mess currently There is another point, and that is of JNI-related issues (i.e. packaging Java applications trying to use native calls). Fedora (and most other Linux distributions) traditionally supported multilib Java environments partially. That means you can install i686 JVM on x86_64 host system and use it normally. However things would not work correctly in case you wanted to use JNI library in such a setup. Work has been started on a Fedora bug[3] to support multilib properly, but when I was halfway done I realized it's more complicated. And it would make packaging work of JNI libraries quite complicated. So I am working on a different approach[4] which would simply ignore multilib problems for Java packages. This would mean it would not be supported to install i686 java packages on x86_64 host (except VM itself). Please put any JNI-related discussion on [4], and the rest you can send as a reply to [5] (or just send it to me and I'll do my best to fix the proposal). Thanks, [1] https://fedoraproject.org/wiki/User:Akurtakov/JavaPackagingDraftUpdate [2] https://url.corp.redhat.com/53d8d41 [3] https://bugzilla.redhat.com/show_bug.cgi?id=665576 [4] https://fedoraproject.org/wiki/User:Sochotni/JavaMultilib [5] http://lists.fedoraproject.org/pipermail/java-devel/2012-June/004443.html -- Stanislav Ochotnicky <sochotnicky(a)redhat.com&gt; Software Engineer - Base Operating Systems Brno PGP: 7B087241 Red Hat Inc. http://cz.redhat.com