Hi Giovanni, In BEEHIVE-1060, if the @Control member of the parent or base class controller is defined with just the default package visibility (no modifier) as...
@Control SomeControl _control; ...and used in a base class action method, then it will not get initialized when the inherited action is called for the derived controller. The work around for now is to just declare the control with the protected modifier in the base class... @Control protected SomeControl _control; I updated the zip file with the repro case for BEEHIVE-1060 so it includes the control used to test this specific issue. You can download it as an example. You will need to edit the ParentController and add the protected modifier to the control so that it will work. Otherwise, this example failas as described in the bug. Hope the example helps, Carlin On 6/21/06, Giovanni Motta <[EMAIL PROTECTED]> wrote:
In https://issues.apache.org/jira/browse/BEEHIVE-1060 i read: ...The work around is to make the control field protected rather than package protected... Sorry, my fault, but i don't understand what does it mean...Carlin, could you explain better, and/or complete your sample with the workaround? Many thanks. Giovanni. 2006/6/21, Giovanni Motta <[EMAIL PROTECTED]>: > > Thanks Carlin, i realized my explanation was not clear... > I noticed the ClientInitializer is built only for 'father' pageflow P1 > (the base class), the one that holds the action and the control to be > executed. > > For pageflow P2 that inherits from P1, ClientInitializer is NOT > generated...I don't know if it is a bug the fact of not to generate it, or > else the fact of look for it in this particular case, where the > ClientInitializer is generated for the base class... > > I think my problem is quite similar to the one you mentioned, i also get a > NPE when the control is referenced by base class, but i noticed also that > other exception i reported. It is logged and probably handled by the > framework, since it doesn't stop execution...maybe it should??? > > Could you point me to JIRA (some kind of bug tracker, i suppose?). > Many thanks, regards. > Giovanni. > 2006/6/20, Carlin Rogers <[EMAIL PROTECTED]>: > > > Hi Giovanni, > > > > The only issue I'm aware of is tracked in > > https://issues.apache.org/jira/browse/BEEHIVE-1060 where a package > > protected > > control in a parent page flow is not being initialized when using a > > derived > > page flow inheriting from the parent. In this case it throws an NPE when > > the > > base class method tries to access the control because the control was > > never > > initialized. The non-initialization is similar to your experience but I > > think different. Your stack trace indicates a problem in the > > initializeClient() method of > > org.apache.beehive.controls.api.bean.Controls. The call to the > > ClassLoader > > loadClass() is throwing a ClassNotFoundException for the class file of > > your > > generated ClientInitializer, > > operazione1.Operazione1ControllerClientInitializer. You mentioned that > > you > > noticed that the ClientInitializer is built. Is the class file in > > build/WEB-INF/classes/? Is it just an issue with the deployment in your > > Tomcat 5.5.9 configuration. If you have a simple repro case, you can log > > a > > separate JIRA issue. > > > > Thanks, > > Carlin > > > > On 6/20/06, Giovanni Motta <[EMAIL PROTECTED]> wrote: > > > > > > Hi all, i'm new to the list. > > > I'm trying to build a pageflows hierarchy (pageflow PF1 defines java > > > control > > > C1 and an action A1 that internally performs a call to a method of C1, > > > pageflow PF2 inherits directly from PF1 and performs a forward to A1 > > ). > > > All > > > is done through annotations, no custom instanciation. > > > I'm developing with BEA 9.2 tools, but I'm using a tomcat 5.5.9server > > for > > > project requirements. > > > The application starts fine on PF2, invokes action A1 of PF1 with no > > > problem, but when the java control C1 is first used, i see with the > > debug > > > tool it is not instanciated (null) . > > > Also, during initialization of pageflow P2, i see in console output > > the > > > exception reported. > > > It seems like no client initializer class is found for P2, but i'm > > > wondering > > > if it's ordinary stuff, since i see the client initializer class is > > built > > > for pageflow P1, that in effect is the owner of the java > > control...Bug??? > > > > > > Apart from this, i would like to know if someone else has already > > > developed > > > something similar and can produce a sample code. > > > Reading beehive 1.0.1 documentation, it seems this kind of inheritance > > > should be fully supported. > > > Problems with the container? Any points? > > > > > > Thanks in advance to who will answer. > > > > > > Exception follows: > > > > > > [INFO] FlowController - Handling exception in onCreate(), > > FlowController > > > [EMAIL PROTECTED] > > > > > > Throwable: * > > > > > org.apache.beehive.netui.pageflow.ControlFieldInitializationException*: > > > Exception occurred while initializing control field > > > operazione1.Operazione1Controller in > > > /operazione1/Operazione1Controller.jpf. > > > > > > Stack Trace: > > > * > > > > > > > > org.apache.beehive.netui.pageflow.ControlFieldInitializationException*: > > > Exception occurred while initializing control field > > > operazione1.Operazione1Controller in > > > /operazione1/Operazione1Controller.jpf. > > > > > > at > > > > > > > > org.apache.beehive.netui.pageflow.internal.JavaControlUtils.initJavaControls > > > (*JavaControlUtils.java:177*) > > > > > > at org.apache.beehive.netui.pageflow.PageFlowManagedObject.create(* > > > PageFlowManagedObject.java:83*) > > > > > > at org.apache.beehive.netui.pageflow.FlowController.create (* > > > FlowController.java:556*) > > > > > > at org.*apache*.beehive.netui.pageflow.PageFlowController.create(* > > > PageFlowController.java:405*) > > > > > > at > > org.apache.beehive.netui.pageflow.FlowControllerFactory.createPageFlow > > > (* > > > FlowControllerFactory.java:294*) > > > > > > at > > > > > > > > org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.getFlowController > > > (*PageFlowRequestProcessor.java:603*) > > > > > > at org.*apache* > > > .beehive.netui.pageflow.PageFlowRequestProcessor.processInternal(* > > > PageFlowRequestProcessor.java:508*) > > > > > > at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.process(* > > > PageFlowRequestProcessor.java:838*) > > > > > > at org.apache.beehive.netui.pageflow.AutoRegisterActionServlet.process > > (* > > > AutoRegisterActionServlet.java:634*) > > > > > > at org.apache.beehive.netui.pageflow.PageFlowActionServlet.process(* > > > PageFlowActionServlet.java:156*) > > > > > > at org.apache.struts.action.ActionServlet.doGet(*ActionServlet.java > > :507*) > > > > > > at javax.servlet.http.HttpServlet.service(*HttpServlet.java:689*) > > > > > > at javax.servlet.http.HttpServlet.service(*HttpServlet.java:802*) > > > > > > at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (* > > > ApplicationFilterChain.java:252*) > > > > > > at org.apache.catalina.core.ApplicationFilterChain.doFilter(* > > > ApplicationFilterChain.java:173*) > > > > > > at org.apache.catalina.core.ApplicationDispatcher.invoke(* > > > ApplicationDispatcher.java:672*) > > > > > > at org.apache.catalina.core.ApplicationDispatcher.processRequest(* > > > ApplicationDispatcher.java:463*) > > > > > > at org.apache.catalina.core.ApplicationDispatcher.doForward(* > > > ApplicationDispatcher.java :398*) > > > > > > at org.apache.catalina.core.ApplicationDispatcher.forward(* > > > ApplicationDispatcher.java:301*) > > > > > > at > > > > > > > > org.apache.beehive.netui.pageflow.internal.DefaultForwardRedirectHandler.forward > > > (*DefaultForwardRedirectHandler.java:127*) > > > > > > at > > org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.doForward(* > > > PageFlowRequestProcessor.java:1797*) > > > > > > at > > > > > > > > org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processPageFlowRequest > > > (*PageFlowRequestProcessor.java:732*) > > > > > > at > > > > > org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processInternal > > > (* > > > PageFlowRequestProcessor.java:469*) > > > > > > at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.process > > (* > > > PageFlowRequestProcessor.java:838*) > > > > > > at org.apache.beehive.netui.pageflow.AutoRegisterActionServlet.process(* > > > AutoRegisterActionServlet.java:634*) > > > > > > at org.apache.beehive.netui.pageflow.PageFlowActionServlet.process(* > > > PageFlowActionServlet.java:156*) > > > > > > at org.apache.struts.action.ActionServlet.doGet (*ActionServlet.java > > :507*) > > > > > > at javax.servlet.http.HttpServlet.service(*HttpServlet.java:689*) > > > > > > at javax.servlet.http.HttpServlet.service(*HttpServlet.java:802*) > > > > > > at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(* > > > ApplicationFilterChain.java:252*) > > > > > > at org.apache.catalina.core.ApplicationFilterChain.doFilter(* > > > ApplicationFilterChain.java:173*) > > > > > > at org.apache.catalina.core.StandardWrapperValve.invoke (* > > > StandardWrapperValve.java:213*) > > > > > > at org.apache.catalina.core.StandardContextValve.invoke(* > > > StandardContextValve.java:178*) > > > > > > at org.apache.catalina.core.StandardHostValve.invoke (* > > > StandardHostValve.java > > > :126*) > > > > > > at org.apache.catalina.valves.ErrorReportValve.invoke(* > > > ErrorReportValve.java > > > :105*) > > > > > > at org.apache.catalina.core.StandardEngineValve.invoke (* > > > StandardEngineValve.java:107*) > > > > > > at org.apache.catalina.connector.CoyoteAdapter.service(* > > CoyoteAdapter.java > > > :148*) > > > > > > at org.apache.coyote.http11.Http11Processor.process(* > > Http11Processor.java > > > :856*) > > > > > > at > > > > > > > > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection > > > (*Http11Protocol.java:744*) > > > > > > at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket (* > > > PoolTcpEndpoint.java:527*) > > > > > > at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(* > > > LeaderFollowerWorkerThread.java:80*) > > > > > > at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run (* > > > ThreadPool.java:684*) > > > > > > at java.lang.Thread.run(*Thread.java:595*) > > > > > > Caused by: *java.lang.ClassNotFoundException*: > > > operazione1.Operazione1ControllerClientInitializer > > > > > > at org.apache.catalina.loader.WebappClassLoader.loadClass(* > > > WebappClassLoader.java:1332*) > > > > > > at org.apache.catalina.loader.WebappClassLoader.loadClass(* > > > WebappClassLoader.java:1181*) > > > > > > at org.apache.beehive.controls.api.bean.Controls.initializeClient(* > > > Controls.java:131*) > > > > > > at > > > > > > > > org.apache.beehive.netui.pageflow.internal.JavaControlUtils.initJavaControls > > > (*JavaControlUtils.java:172*) > > > > > > ... 42 more > > > > > > > > > > > >
