-Xmixed           mixed mode execution (default)    -Xint             interpreted mode execution only    -Xbootclasspath:<directories and zip/jar files separated by ;>                      set search path for bootstrap classes and resources    -Xbootclasspath/a:<directories and zip/jar files separated by ;>                      append to end of bootstrap class path    -Xbootclasspath/p:<directories and zip/jar files separated by ;>                      prepend in front of bootstrap class path    -Xnoclassgc       disable class garbage collection    -Xincgc           enable incremental garbage collection    -Xbatch           disable background compilation    -Xms<size>        set initial Java heap size    -Xmx<size>        set maximum Java heap size    -Xss<size>        set java thread stack size    -Xprof            output cpu profiling data    -Xrunhprof[:help]|[:<option>=<value>, ...]                      perform JVMPI heap, cpu, or monitor profiling    -Xdebug           enable remote debugging    -Xfuture          enable strictest checks, anticipating future default    -Xrs              reduce use of OS signals by Java/VM (see documentation)    -Xcheck:jni       perform additional checks for JNI functionsThe -X options are non-standard and subject to change without notice.