Get java.lang.OutOfMemoryError: Java heap space error when compiling aspectJ project

I get

java.lang.OutOfMemoryError: Java heap space

when I try to compile an aspecj project. The project is a ma开发者_C百科ven 2 project and I have set maven-compiler-plugin to use up to 2048m memory. But this error just doesn't go away. What else can I do to increase the heap space?

You could try tips specified here, including

set MAVEN_OPTS=Xmx1024M