Restriction on length of CLASSPATH?

Esteemed listers,

It looks very much so that the length of the CLASSPATH environment variable as used for running a Java program from a shell script (invoked through BPXBATCH) is restricted to about 4K bytes. However, I can't seem to find any documentation that officially states this restriction. Would it be a restriction on the length of a shell variable, or would it be a restriction in the JVM?

Any pointers to some doc will be very much appreciated.



P.S. We are running Java 5 on z/OS 1.12

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