Java install running out of memory

I run a Gentoo Linux Notebook with a 2Ghz processor and 2GB of RAM and I am getting this message in my log.err file;

I used this command as my user;

user @ directory$ java -verbose -jar Linux/setup.jar

========================================================================
Install, com.installshield.product.actions.Files, err, java.lang.OutOfMemoryError
STACK_TRACE: 2
java.lang.OutOfMemoryError
=====================================================================

I watched the memory usage, and although Java tried its best to use up all the memory, it only got to 1.3GB before it quit. The rest of all my programs all together consumed only 300MB of memory, so together that adds up to 1.6GB leaving a clean 400MB overhead left.

What gives? What would make this make file consume all the memory?

Any ideas help would be great.

Thanks,

John