So you need a Singleton with editable instance variables? You could pretty easily make a JMX MBean using either a @Service Bean (http://trailblazer.demo.jboss.com/EJB3Trail/serviceobjects/jmx/), or by dropping a "*-service.xml" file into your deploy directory... <?xml version="1.0" encoding="UTF-8"?> | <!DOCTYPE server> | | <server> | | <mbean code="com.you.yourBean" | name="you:service=ServiceName"> | <attribute name="JNDIName">java:/YourServiceNameInJNDI</attribute> | <attribute name="prop1">defaultValueProp1</attribute> | <depends>you:service=ServiceIDependOn</depends> | </attribute> | </mbean> | | </server> S, ALR View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976085#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...