This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Architecture:- PowerBuilder makes a JSP request , JSP calls a Session Bean, Bean Calls a Tuxedo Service through XMLink (XMLink is a JCA , this is happning in Websphere 4.0) Tuxedo Calls "Cobal shared objects", (oracle OPS and EMC, etc) Any idea about the following inconsistent error !!! JORB0012: Pass by reference has been set to: true (NoLocalCopies = true) An unexpected exception was thrown. Halting execution. com.ibm.ejs.sm.active.ActiveFileBrowserService
Use pass by value if possible. See warning at bottom of explanation.
Pass-by-value versus pass-by-reference (NoLocalCopies) Short description: The EJB 1.1 specification states that method calls are to be pass-by-value. Pass-by-value means that for every remote method call, the parameters are copied onto the stack before the call is made. This can be expensive. It is possible to specify pass-by-reference, which passes the original object reference without making a copy of the object. Actual benefit observed: If the EJB client and EJB server are installed in the same WebSphere Application Server instance, specifying pass-by-reference can improve performance up to 50%. When to try adjusting: Pass-by-reference helps performance only in the case where non-primitive object types are being passed as parameters. Therefore, int and floats are always copied, regardless of the call model. WARNING: Pass-by-reference can be dangerous and can lead to unexpected results. If an object reference is modified by the remote method, the change might be seen by the caller.