Can't set EnableMessageCounters to true on jboss.messaging.ServerPeer JMX interface

I'm not 100% sure I have the correct "Fix Version". The version tag of the server is "JBoss 4.3.0.GA_CP01_SOA"

==Software Versions==
I believe this to be the latest released version of the SOA-P.
Java: Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_16-b02, mixed mode) (not tried any other)
OS: Ubuntu 8.10

==Configuration Changes==
This issue happens out of the box, without any configuration changes.

==Why I think it's a bug==
The bug causes a stacktrace to appear on the JMX-Console and "enableMessageCounters" to NOT be enabled. I believe it to be a bug, because enabling the "enableMessageCounters" property does not enable message counters. Also, if it is something I have done wrong, then I'd claim it was a bug because there is no human readable error message, just a stacktrace.

==Workaround==
invoke "enableMessageCounters()" on the same JMX interface.

==Reproduction Steps==

1. goto jmx-console
2. select "service=ServerPeer" from "jboss.messaging" catagory
3. set "EnableMessageCounters" radio button to true
4. click "Apply changes"
5. Observe:

org.jboss.util.NestedRuntimeException: Key properties cannot be empty; - nested throwable: (javax.management.MalformedObjectNameException: Key properties cannot be empty)
org.jboss.mx.util.propertyeditor.ObjectNameEditor.getValue(ObjectNameEditor.java:52)
org.jboss.util.propertyeditor.PropertyEditors.convertValue(PropertyEditors.java:261)
org.jboss.jmx.adaptor.control.Server.setAttributes(Server.java:190)
org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.updateAttributes(HtmlAdaptorServlet.java:250)
org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.processRequest(HtmlAdaptorServlet.java:98)
org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.doPost(HtmlAdaptorServlet.java:82)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

javax.management.MalformedObjectNameException: Key properties cannot be empty
javax.management.ObjectName.construct(ObjectName.java:467)
javax.management.ObjectName.<init>(ObjectName.java:1403)
org.jboss.mx.util.propertyeditor.ObjectNameEditor.getValue(ObjectNameEditor.java:49)
org.jboss.util.propertyeditor.PropertyEditors.convertValue(PropertyEditors.java:261)
org.jboss.jmx.adaptor.control.Server.setAttributes(Server.java:190)
org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.updateAttributes(HtmlAdaptorServlet.java:250)
org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.processRequest(HtmlAdaptorServlet.java:98)
org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.doPost(HtmlAdaptorServlet.java:82)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)