Can JDK1.5+ share any class data between JVM process

Hello,

I have to create 20~100 JVM client application on my server, each client application have 100M jar packages and use 600M memory. I've heard the JDK1.5 support class data sharing feature, so I want to use it. But went I use the -XShare:dump option in a JRE1.6 to dump the class data, I always got a file with size of 12.5M in my directory of "jdk1.6.0_01\jre\bin\client\classes.jsa". Can this 12.5M file share class between JVM?

[449 byte] By [Liang.K.Ronga] at [2007-11-27 6:56:38]