A fatal error has been detected by the Java Runtime Environment: SIGSEGV (0xb) at pc=0x00002b2f7e9b2744, pid=28778, tid=1138739520

Question

I am getting the following error while executing the program.

And this is not always happening. The code contains some complex calculations with a large volume of data

Answer 1

This indicates an error in the JVM itself.

First you need to be absolutely certain your hardware - notably your memory - is in order. Run memcheck to find out (the easiest way may be to boot on a Ubuntu install media, and pick it from the boot menu).

Fix any hardware issues found.

If problem persists, ensure you are running the latest version of the Java distribution you are using. If you run OpenJDK consider downloading an Oracle build, and vice versa. If you do not need 64-bit consider using a 32-bit JVM.