Updates Java 6 to update 14 which includes the -XX:+UseCompressedOops option... greatly reducing the amount of memory 64 bit java takes.
I'd be interested in hearing about anyones experience trying this with IntelliJ.
The update also update Java 5 to Java 1.5.0_16 and Java 1.4 to Java 1.4.2_18. Only for Mac OS X v10.5.7
Original message URL: http://www.jetbrains.net/devnet/message/5240153#5240153