Having trouble launching latest Gephi on OSX? I’m running Mavericks but I’m sure this will help others who have upgraded or who are still running older versions of OSX.
From command line, use the jdkhome parameter when launching Gephi and point it to the system Java 1.6 install:
$ cd /Applications/Gephi.app/Contents/MacOS
$ ./Gephi --jdkhome /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/