JTS is not starting (on Tomcat) - 4.0

Ok, I know what the problem was. It was a memory issue. I am running this VM with 2.5 GB RAM, a standard image that I use for other tasks. Clearly, this is not enough for a full CLM 4.0 install. How I caught this was, I kept trying to catch a secondary command prompt that was terminating right after the initial one. This said: "JVMJ9VM015W Initialization error for library j9gc24(5): Failed to allocate default memory space. Could not create the Java virtual machine." I bumped the RAM up to the recommended 4GB and now the JTS has started for me. I should've noticed this earlier. Thanks for your ideas however.

I have the same issue running 64-bit windows 7 professional.  Got exactly the same error, and I have 4 G RAM.

What I did was to edit server.startup.bat using notepad
you'll see a bunch of set JAVA_OPTS
You care about the -Xmx and -Xms options. They are probably set to use 4G (looks like -Xms4G).  You can try setting it to 2G

what the heck are these options?  Check out http://stackoverflow.com/questions/1043817/speed-tradeoff-of-javas-xms-and-xmx-options

I hope this helps!

of course, in doing this, your perfomance will suffer if you lower it, but crap performance is better than no performance!  The real solution, install more RAM!