FULL PRODUCT VERSION : java version "1.5.0_04" Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_04-b05) Java HotSpot(TM) Client VM (build 1.5.0_04-b05, mixed mode, sharing) ADDITIONAL OS VERSION INFORMATION : Microsoft Windows XP [version 5.1.2600] A DESCRIPTION OF THE PROBLEM : For a non-Open MBean, an operation with a void return type results in an "Operation Completed Successfully" message. For an Open MBean, where the return type is specified as SimpleType.VOID, invocation results in a "Operation returned null" message. STEPS TO FOLLOW TO REPRODUCE THE PROBLEM : Create an Open MBean with a void operation. Register with a the MBeanServer. Start jconsole, navigate to the MBean operation, invoke it. EXPECTED VERSUS ACTUAL BEHAVIOR : EXPECTED - "Operation completed successfully" message (as per non-Open MBeans) ACTUAL - "Operation returned null" message (as per non-void operations that return null) REPRODUCIBILITY : This bug can be reproduced always.
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