0 Replies Latest reply on Apr 9, 2003 7:22 AM by sohaib

    Concurrent Access to Stateful Session Bean

    sohaib Newbie

      Architeure of my application is, my JSP pages call Stateful session bean which communicates with all the entity beans. While stress testing of my application on JBoss i have the following exception:
      17:07:46,117 ERROR [LogInterceptor] EJBException:
      javax.ejb.EJBException: Application Error: tried to enter Stateful bean with different transaction c
      ontext, contextTx: TransactionImpl:XidImpl [FormatId=257, GlobalId=sultan//2717, BranchQual=], metho
      dTx: TransactionImpl:XidImpl [FormatId=257, GlobalId=sultan//2718, BranchQual=]
      at org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor.invoke(StatefulSessionInstanceIn
      terceptor.java:228)
      at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:107)
      at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:228)
      at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:92)
      at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:204)
      at org.jboss.ejb.StatefulSessionContainer.invoke(StatefulSessionContainer.java:380)
      at org.jboss.ejb.Container.invoke(Container.java:712)
      at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:517)
      at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:98)
      at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:102)
      at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:77)
      at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:80)
      at org.jboss.proxy.ejb.StatefulSessionInterceptor.invoke(StatefulSessionInterceptor.java:117
      )
      at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:76)
      at $Proxy252.getBracket(Unknown Source)
      at org.apache.jsp.BracketManagement$jsp._jspService(BracketManagement$jsp.java:347)
      at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
      at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
      at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
      at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
      at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
      at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:280)
      at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:553)
      at org.mortbay.http.HttpContext.handle(HttpContext.java:1717)
      at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:549)
      at org.mortbay.http.HttpContext.handle(HttpContext.java:1667)
      at org.mortbay.http.HttpServer.service(HttpServer.java:862)
      at org.jboss.jetty.Jetty.service(Jetty.java:497)
      at org.mortbay.http.HttpConnection.service(HttpConnection.java:759)
      at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:923)
      at org.mortbay.http.HttpConnection.handle(HttpConnection.java:776)
      at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:202)
      at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
      at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)


      I have tested my application on WebLogic Platform and its working fine while stress testing. I have put vendor specific tag <Allow-concurrent-calls> in session bean descriptor to avoid such exceptions.
      I want to ask that is there any tag for JBoss or what should i do to avoid the exception i have mentioned above.
      Thanks.