jmx-dev Need reviewer for 6888171: JMX Monitor API should not require JavaBeans to be present

Alan Bateman Alan.Bateman at Sun.COM
Mon Nov 23 02:04:26 PST 2009


The JMX Monitor API is specified to use the Java Beans introspector for 
complex types others than CompositeData or arrays. This dependency is 
undesirable because JavaBeans is very tied to AWT. I'd like to address 
this dependency. The main observation is that if explicit information is 
available (ie: XXXBeanInfo exists) then the application's dependency 
will require Java Beans to be present. In that case, the Java Beans 
introspector should be used and everywhere works as it does now. On the 
other hand, if explicit information is not available, then the 
introspector uses reflection to identity the property accessors. That 
case should not require the module containing Java Beans to be installed 
and if not installed, we can use a fallback mechanism to identity the 
property methods. I had a short call with Éamonn about this and he 
agreed that this approach is okay (and made useful suggestions to avoid 
duplicating some of the existing JMX introspection code). I've put the 
webrev the proposed changes here:
   http://cr.openjdk.java.net/~alanb/6888171/webrev.00

Thanks,
Alan.


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