Hi Everybody I have set up a testQueue for receiving jms messages with an MDB. Now i would like to change the "The maximum number of messages this queue can hold before they are dropped" from -1 to 10 for some test. If I now invoking the apply button on the jms console im getting an Error and the following Exception on the JBoss Console: 09:48:50,875 ERROR [[HtmlAdaptor]] Servlet.service() for servlet HtmlAdaptor threw exception javax.management.MalformedObjectNameException: Key properties cannot be empty at javax.management.ObjectName.construct(ObjectName.java:467) at javax.management.ObjectName.(ObjectName.java:1403) at org.jboss.jmx.adaptor.control.Server.setAttributes(Server.java:171) at org.jboss.jmx.adaptor.html.HtmlAdaptorServlet$5.run(HtmlAdaptorServlet.java:403) at org.jboss.jmx.adaptor.html.HtmlAdaptorServlet$5.run(HtmlAdaptorServlet.java:400) at java.security.AccessController.doPrivileged(Native Method) at org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.setAttributes(HtmlAdaptorServlet.java:399) at org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.updateAttributes(HtmlAdaptorServlet.java:259) at org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.processRequest(HtmlAdaptorServlet.java:102) at org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.doPost(HtmlAdaptorServlet.java:86) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentVa a:126) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentVal :70) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) Every help is appreciated. Best regards Tom View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4201258#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...