-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
    -Xgcprio:[throughput|pausetime|deterministic]
	      sets priority for the garbage collector (gc)
		  throughput	optimizes the gc behavior to achieve optimal
                                throughput (default in server mode)
		  pausetime	optimizes the gc behavior to achieve minimal
                                pause times 
		  deterministic	optimizes the gc behavior to ensure extremely
                                short pause times and limit the total number of
                                those pauses within a prescribed window (this
                                feature requires a valid license)
    -Xgc:[singlecon|gencon|singlepar|genpar]
              used to set a static garbage collector
              will override the -Xgcprio option
                  singlecon     use the single-spaced concurrent garbage
                                collection algorithm (default in client mode)
                  gencon        use the generational concurrent 
                                garbage collection algorithm
                  singlepar     use the single-spaced parallel 
                                garbage collection algorithm
                  genpar        use the generational parallel 
                                garbage collection algorithm
    -Xms<size>[g|G|m|M|k|K]
              sets the initial Java heap size (ms)
                  server mode:  the default value is 25% of the amount 
				of free physical memory in the system 
				up to 64 MB with a minimum of 8 MB (default)
                  client mode:  the default value is 25% of the amount 
				of free physical memory in the system 
				up to 16 MB with a minimum of 8 MB
    -Xmx<size>[g|G|m|M|k|K]
	      sets the maximum Java heap size (mx)
                  server mode:  the default value is the smallest of 75% of
                       		physical memory and 1536 MB (default)
                  client mode: 	the default value is the smallest of 75% of
				physical memory and 64 MB              
    -Xns<size>[g|G|m|M|k|K]
	      sets the initial Java nursery size for generational collectors
                  server mode:  the default value is dynamic (throughput
                                prio and genpar gc) or 10 MB per hardware
                                thread (pausetime prio and gencon gc)
                  client mode:  the default value is 2 MB            
    -Xss<size>[g|G|m|M|k|K]
              set initial stack size
    -Xpausetarget=<optimal_pause_time>[ms|s]
              JRockit will optimize the pause time to the given target,
              uses -Xgcprio:pausetime
                  ms            pause time specified in milliseconds (default)
                  s             pause time specified in seconds
    -Xnoclassgc
              disable class garbage collection
    -Xdebug
              enables debugging support in the VM
    -Xrun<library>	    
              loads and runs a library
    -Xmanagement
              enable the management agent
    -Xnoopt   
              do not optimize code
    -Xstrictfp
              always use strict floating point calculations
    -Xverify  
              do full bytecode verification
    -Xnohup or -Xrs
              JRockit will not process CTRL_LOGOFF_EVENT or SIGHUP events
    -Xverbose[:memory|load|jni|cpuinfo|codegen|opt|gcpause|gcreport]
              Enables verbose output. These are only a few of the 
              available log modules. For more information on log 
              modules refer to the documentation. 
    -Xverboselog:<file>
              logs verbose output to a file 
    -Xverbosetimestamp
              adds a timestamp to the verbose printout
    -Xverbosedecorations:<decorations>
              adds <decorations> to the verbose printout
    -Xcheck:jni       
	      perform additional checks for JNI functions
For more information on these options refer to the documentation.
The -X options are non-standard and subject to change without notice.