[rvm-research] Runtime Exception when running JMX

Hi,

I am trying to use JMX within Jikes.
 *All what I am doing* is :
 MemoryMXBean memMx = ManagementFactory.getMemoryMXBean();
        memMx.getHeapMemoryUsage().getCommitted();
        memMx.getHeapMemoryUsage().getUsed();


*I get the below exception:*
Unexpected exception thrown in timer thread:
java.lang.IllegalArgumentException: Maximum value of 0 is below 42733568,
the amount committed.
java.lang.IllegalArgumentException: Maximum value of 0 is below 42733568,
the amount committed.
   at java.lang.management.MemoryUsage.<init>(MemoryUsage.java:141)
   at org.jikesrvm.mm.mminterface.JMXSupport.getUsage(JMXSupport.java:159)
   at
gnu.java.lang.management.VMMemoryMXBeanImpl.getUsage(VMMemoryMXBeanImpl.java:79)
   at
gnu.java.lang.management.VMMemoryMXBeanImpl.getHeapMemoryUsage(VMMemoryMXBeanImpl.java:28)
   at
gnu.java.lang.management.MemoryMXBeanImpl.getHeapMemoryUsage(MemoryMXBeanImpl.java:149)
   at org.jikesrvm.scheduler.TimerThread.run(TimerThread.java:97)

Any ideas ??

-- 
Regards,
Khaled Mahmoud

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