Error occurred during initialization of VM

Hi Team

I am using your DomJudge Product

i am facing this Error can you help me on that :

Compiling failed with exitcode 1, compiler output: Error occurred during initialization of VM Could not reserve enough space for object heap Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit.

It works fine for C and C++ program

I have increase MEMRESERVED in java_javac

also increase Memory limit and process limit but nothing work for me

Thanks

Raj Baghel