jps returns no output even when java processes are running

Question

I\'m trying to debug some issues with java processes on a Solaris box, but running jps returns no output. And jstack gives the error \'Permission denied\'. The box is part o

Answer 1

Turns out the user didn't have access to /tmp because of some issue with mounting the file system. This leads to the files inside hsperfdata_ to never be written, even though the user had access to the /tmp/hsperfdata_ folder itself.