[ mx4j-Bugs-977253 ] ClassCastException when trying to browse TabularData

Bugs item #977253, was opened at 2004-06-22 09:04
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=450647&aid=977253&group_id=47745

Category: HTTP Adaptor
Group: Release 2.0.1
Status: Open
Resolution: None
Priority: 5
Submitted By: Lars Kühne (lkuehne)
Assigned to: Nobody/Anonymous (nobody)
Summary: ClassCastException when trying to browse TabularData

Initial Comment:
I have implemented an OpenMBean that has an attribute
of type TabularData. The getter method is implemented
using TabularDataSupport, basically:

  TabularDataSupport tabularDataSupport = new
TabularDataSupport(...);
  tabularDataSupport.put(new CompositeDataSupport(...));
  tabularDataSupport.put(new CompositeDataSupport(...));
  return tabularDataSupport;

When try I use the MX4J HttpAdaptor to look at the
table data I get

java.lang.ClassCastException
	at
javax.management.openmbean.TabularDataSupport.get(TabularDataSupport.java:25
2)
	at
mx4j.tools.adaptor.http.GetAttributeCommandProcessor.executeRequest(GetAttri
buteCommandProcessor.java:152)
	at
mx4j.tools.adaptor.http.HttpAdaptor$HttpClient.run(HttpAdaptor.java:979)

The object being passed to TabularDataSupport.get() is
a java.util.List and the code is trying to cast it to
Object[]. 

To me it seems that
GetAttributeCommandProcessor.executeRequest() is
confused by the fact that TabularDataSupport implements
the Map interface. There should be some additional case
for TabluarData before checking "if (.. &&
attributeValue instanceof Map)".

My own code seems OK, I can browse the TabularData in
the JDK 1.5 jconsole tool.

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