Hi all, I downloaded JBoss 5.0.0.GA and, without any changes, I tried to modify one MBean from jmx-console but I received 500 Internal Server Error: javax.management.MalformedObjectNameException: Key properties cannot be empty at javax.management.ObjectName.construct(ObjectName.java:467) at javax.management.ObjectName.<init>(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: 401) at java.security.AccessController.doPrivileged(Native Method) at org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.setAttributes(HtmlAdaptorServl et.java:399) at org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.updateAttributes(HtmlAdaptorSe rvlet.java:259) at org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.processRequest(HtmlAdaptorServ let.java:102) at org.jboss.jmx.adaptor.html.HtmlAdaptorServlet.doPost(HtmlAdaptorServlet.java :86) ... After debug, I think the problem is on HtmlAdaptorServlet.updateAttributes() that tries to set MBean value without decode the string getted from request.getParameter(). I modified the HtmlAdaptorServlet and inspectMBean.jsp in order to decode parameter before update, and it's work! That's the diff: ____________________________________________________________________________ __________ In inspectMBean.jsp 143c143 < <input type="button" value="Refresh MBean View" onClick="javascript:location='HtmlAdaptor?action=inspectMBean&amp;name=<%= URLEncoder.encode(request.getParameter("name"),"UTF-8") %>'"/> --- onClick="javascript:location='HtmlAdaptor?action=inspectMBean&amp;name=<%= request.getParameter("name").indexOf("%") == -1 ? URLEncoder.encode(request.getParameter("name"),"UTF-8") : request.getParameter("name") %>'"/> ____________________________________________________________________________ __________ In HtmlAdaptorServlet.java 254c254 < attributes.put(param, value); --- 259,260c259,260 < AttributeList newAttributes = setAttributes(name, attributes); < MBeanData data = getMBeanData(name); --- setAttributes(URLDecoder.decode(name, "UTF-8"), attributes); ____________________________________________________________________________ __________ Regards Domenico Briganti