Hello, I'm in my web module (in a Servlet), and i want to have the UserTransaction : UserTransaction utx = (UserTransaction)context.lookup("java:comp/UserTransaction"); With JBoss 4, it's work very well, but with the new JBoss 5 b1, I have a exception. JBoss 5 don't support java:comp/UserTransaction in web module ? javax.naming.NameNotFoundException: UserTransaction not bound at org.jnp.server.NamingServer.getBinding(NamingServer.java:529) at org.jnp.server.NamingServer.getBinding(NamingServer.java:537) at org.jnp.server.NamingServer.getObject(NamingServer.java:543) at org.jnp.server.NamingServer.lookup(NamingServer.java:296) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:628) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:719) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:590) at javax.naming.InitialContext.lookup(InitialContext.java:351) at fr.unedic.test.web.TestServlet.runUsrTransaction(TestServlet.java:73) at fr.unedic.test.web.TestServlet.doGet(TestServlet.java:50) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) 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:228) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:174) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:86) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:212) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:818) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:624) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445) at java.lang.Thread.run(Thread.java:595) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3990989#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...