I installed FM Server 12 on a Windows Server 2003 64 bit machine and after, Java did not work anymore at all!
See the FM KB article: http://help.filemaker.com/app/answers/detail/a_id/10248
In section 1.8, it talks about the server install including Java and that it might be older than a version you might already have on your server.
Doug de Stwolinska
Thank you very much. Yes, this helped a lot. Thank you also that you did not just say rtfm
I had to do it exactly as described. Even after removing FM Server 12 and Java 29 and 31,
rebooting, reinstalling FM Server 12 which comes with Java 29 it did not work. Only
after installing Java 31 after this it worked...