jvmarg
Additional parameters may be passed to the VM via nested <jvmarg> attributes. <jvmarg> allows all attributes described in Command line arguments.
classpath
Sets class path (also source path unless one explicitly set). Overrides METAPATH/CLASSPATH environment variables. The classpath element represents a PATH like structure.
sourcepath
Sets source path. Overrides the SOURCEPATH environment variable. The sourcepath element represents a PATH like structure.