Same problem here: the mentioned JFluid problem and failure to connect to a locally running Java app later.
Found a workaround. I installed sun-java6-* like suggested in the post: http://ubuntuforums.org/showpost.php?p=9320525&postcount=1 and manually changed (soft link) /usr/bin/jvisualvm to sun's jvisualvm: cd /usr/bin sudo unlink jvisualvm sudo ln -s ../lib/jvm/java-6-sun/bin/jvisualvm jvisualvm Before doing that I tried two other approaches: (1) running jvisuavm with --jdkhome /usr/lib/jvm/java-6-sun (2) setting sun's java to be default jvm (with update-java-alternatives) and reinstalling visualvm. None of that worked (visualvm still opened with openjdk). Thus these appear to be bugs in ubuntus' lucid distro: the link to /usr/bin/jvisualvm is not updated on change of jvm and the jdkhome option does not seem to work correctly. -- VisualVM cannot load profiler (64 bit) https://bugs.launchpad.net/bugs/577958 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs