Java: UseG1GC to reduce memory consumption

Add java arugments:

-XX:+UseG1GC -XX:+UseStringDeduplication

Note: UseStringDeduplication only works with UseG1GC. From my experience, it does reduce the memory consumption significantly for some applications. But it also slows down the process a little bit compared with the default Parallel GC.

see also

• G1 GC: Reducing Memory Consumption by 20%