possible to force a 64-bit JVM to use 32-bit mode via the argument “-d32”?

Question

so I have some 3rd party native library that works only in 32 bit JVM across windows,osx,linux and I need to always enforce the java application to run in 32 bit JVM mode.

Answer 1

With Java 6, no. With Java 7+, yes.

Use -d32 with Java 7