How do I set Java's min and max heap size through environment variables?

Question

How do I set Java\'s min and max heap size through environment variables?

I know that the heap sizes can be set when launching java, but I would like to have this ad

Answer 1

If you want any java process, not just ant or Tomcat, to pick up options like -Xmx use the environment variable _JAVA_OPTIONS.

In bash: export _JAVA_OPTIONS="-Xmx1g"