Team working in JDeveloper 10g

All,
I wondered if any of you had any thoughts or suggestions on team working in JDeveloper?
I've just completed my first JDeveloper project and had the benefit of being the sole developer. We're now looking at doing some more projects with JDeveloper and could do with some pointers regarding how to set up the structure of an application so that multiple developers can work on it. We use Serena ChangeManager for version control, so any suggestions that are compatible with this would be especially welcome!
Thanks!
(p.s. I'd also prefer that you stick to the "current" production release of JDeveloper - there seems to be a tendency in here for people to recommend the latest, greatest version (i.e. 11g), in spite of it only being a technology preview. I wouldn't ride in a pre-production airliner, so why should I do real, production work in an unfinished IDE?)

Cliff,
I have a few to start the discussion going.
1). Use your version control system. Even if there is no JDev plugin, use it! (this is a no-brainer, of course).
2). Put the JDeveloper artifacts in version control too. By this, I mean the jpr and jws files.
3). Ensure everyone uses the same coding style preferences, otherwise you can get lots of "bouncing checkins" because one guy likes 3 spaces and some gal likes 4 for indents
4). Be aware of potential issues when checking in Business Components to source control. For example, if you check in the xml file associated with an AM, but not the java files, you're in for some fun!
5). Especially early in the development cycle, if you are using ADF Business Components, the Application Module can become a point of contention among developers. You may want to think about having one person control them - or if not - be sure you have good lines of team communication when they are being changed. It's not the easiest thing to do to deal with merging AM configuration files by hand.
These are some of the ones that jump to mind.
John

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         at oracle.apps.fnd.framework.webui.OAPageBean.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)
         at OA.jspService(_OA.java:71)
         at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)
         at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:462)
         at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)
         at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
         at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)
         at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
         at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)
         at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
         at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)
         at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
         at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
         at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
         at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
         at java.lang.Thread.run(Thread.java:595)
    ## Detail 0 ##
    java.lang.NullPointerException
         at oracle.apps.pos.supplier.server.ByrSuppAMImpl.initializeOrg(ByrSuppAMImpl.java:1447)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:585)
         at oracle.apps.fnd.framework.server.OAUtility.invokeMethod(Unknown Source)
         at oracle.apps.fnd.framework.server.OAUtility.invokeMethod(Unknown Source)
         at oracle.apps.fnd.framework.server.OAApplicationModuleImpl.invokeMethod(Unknown Source)
         at oracle.apps.pos.supplier.webui.ByrPurchCO.processRequest(ByrPurchCO.java:60)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageLayoutHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.beans.layout.OAPageLayoutBean.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.beans.form.OAFormBean.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.beans.OABodyBean.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)
         at OA.jspService(_OA.java:71)
         at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)
         at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:462)
         at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)
         at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
         at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)
         at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
         at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)
         at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
         at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)
         at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
         at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
         at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
         at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
         at java.lang.Thread.run(Thread.java:595)
    java.lang.NullPointerException
         at oracle.apps.pos.supplier.server.ByrSuppAMImpl.initializeOrg(ByrSuppAMImpl.java:1447)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:585)
         at oracle.apps.fnd.framework.server.OAUtility.invokeMethod(Unknown Source)
         at oracle.apps.fnd.framework.server.OAUtility.invokeMethod(Unknown Source)
         at oracle.apps.fnd.framework.server.OAApplicationModuleImpl.invokeMethod(Unknown Source)
         at oracle.apps.pos.supplier.webui.ByrPurchCO.processRequest(ByrPurchCO.java:60)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageLayoutHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.beans.layout.OAPageLayoutBean.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.beans.form.OAFormBean.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.beans.OABodyBean.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.processRequest(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)
         at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(Unknown Source)
         at OA.jspService(_OA.java:71)
         at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)
         at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:462)
         at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)
         at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
         at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)
         at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
         at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)
         at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
         at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)
         at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
         at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
         at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
         at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
         at java.lang.Thread.run(Thread.java:595)

    Check the page function and make sure that you are providing all the parameters for page functions. Also make sure that it is the page where the process starts and it is not expecting any value from any other page.
    --Shiv                                                                                                                                                                                                                                                                                                                                                                                                                                                               

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