So you want the JVM to be unique to the user who runs the app or is this a modification needed at installation?

Are you launching from a CL program? Perhaps a routine the selects the requested JVM and then updates the invocation parameters before running the QSH command to invoke the program? Or maybe a variable that can be passed to a shell script and used to set the JAVA_HOME parameter there?

Not knowing how you are invoking the app I can't think of the *best* way but those are things I have done in order to set JVM's that differ between apps.


David Gibbs wrote:
I'm in a bit of a quandary here ... I'm trying to figure out the best way to allow customers to specify which version of the JVM they want to use with a Java application on the i.

There are multiple JVM's available ... 64bit Classic, 32bit PASE, and 64bit PASE.

For the classic JVM, you can specify the java.version property in the, file, or on the command line.

But with the PASE JVM's, the java version is specified using the JAVA_HOME environment variable.

Is it possible to have the JAVA_HOME environment variable set specifically at the user level?

I tried putting "export JAVA_HOME=/QIBM/ProdData/Java400/jdk15" in the users .profile file, which was picked up in qshell, but not in a direct JAVA invocation.

I also tried putting 'java.home=/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit' in the users file, but got either errors or the value was ignored (different behavior for different OS versions).

Any thoughts?



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