"java.lang​.OutOfMemo​ryError" on jar created with matlab compiler sdk.

I have made a jar from matlab compiler sdk on matlab 2019b and using it in my Java application with MCR9.7.

It works fine, except when i call gamultiobj. Parapool starts and i keep getting "java.lang.OutOfMemoryError" in my Eclipse console.

I tried increasing java heap space https://in.mathworks.com/matlabcentral/answers/482298-increasing-java-heap-memory-of-target-machine-so-that-exe-runs-on-target-machine-with-mcr from matlab preference and 'matlab.prf' as well

but this is not working for me