osx maven running tests Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread “main”

Question

I have been trying to run on mac a ready maven project which works under linux. When calling mvn clean install it runs a portion of the tests and then I am getting

Answer 1

I fixed this problem by adding another magic environmental variable

JAVA_TOOL_OPTIONS="-Xmx1024m -XX:MaxPermSize=512m -Xms512m"