Modify JVM args from inside the JVM

Question

Is there a way to modify the jvm args from inside of the jvm? Specifically, I want to be able to change the maximum heap size of the jvm from inside of it. Is this possibl

Answer 1

This is a halfway-serious, completely-off-the-wall hack-thought:

...what if you spawned a new instance of java (with the new settings) from the current jvm then killed the old process from the new? I have no idea if this will help or not (or even work)...