Uploaded image for project: 'Seam 2'
  1. Seam 2
  2. JBSEAM-3930

@Observer method does not take a Varargs as parameter

    Details

    • Type: Bug
    • Status: Open (View Workflow)
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 2.0.2.SP1
    • Fix Version/s: None
    • Component/s: None

      Description

      Trying to raise an event wich propagates none to several objects of the same type.

      The observer method looks like this:

      @Name("myObserver")
      public class MyObserver {
      @Observer("myEvent")
      public void processMyEvent(SomeType... env)

      { // some logic }

      }

      The event is thrown in the following way (those SomeType objects are enum types that have no use of being shared by Seam contexts):

      SomeType a = new SomeType();
      SomeType b = new SomeType();
      Events.instance().raiseEvent("myEvent", a, b);

      or

      Events.instance().raiseEvent("myEvent");

      Which gives the following error:

      java.util.concurrent.ExecutionException: javax.ejb.EJBException: java.lang.IllegalArgumentException: Could not invoke method by reflection: MyObserver_$$javassist_14.processMyEvent([Lxxx.SomeType with parameters: (xxx.SomeType) on: xxx.MyObserver$$_javassist_14
      at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:215)
      at java.util.concurrent.FutureTask.get(FutureTask.java:85)
      at xxx.MyOtherBean.processOther(MyOtherBean.java:144)
      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 org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
      at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
      at org.jboss.seam.intercept.EJBInvocationContext.proceed(EJBInvocationContext.java:44)
      at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
      at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
      at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46)
      at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42)
      at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      at org.jboss.seam.persistence.EntityManagerProxyInterceptor.aroundInvoke(EntityManagerProxyInterceptor.java:26)
      at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      at org.jboss.seam.persistence.HibernateSessionProxyInterceptor.aroundInvoke(HibernateSessionProxyInterceptor.java:27)
      at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
      at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:50)
      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 org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
      at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
      at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
      at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
      at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
      at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
      at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:95)
      at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
      at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
      at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:110)
      at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46)
      at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
      at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:240)
      at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:210)
      at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:84)
      at $Proxy854.process(Unknown Source)
      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 org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
      at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
      at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:76)
      at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
      at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:118)
      at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54)
      at org.javassist.tmp.java.lang.Object_$$javassist_4.process(Object$$_javassist_4.java)
      at xxx.MyBean.process(MyBean.java:137)
      at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
      at java.util.concurrent.FutureTask.run(FutureTask.java:123)
      at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
      at java.lang.Thread.run(Thread.java:595)
      (...redundant error message...)
      Caused by: java.lang.IllegalArgumentException: argument type mismatch
      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 org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
      ... 71 more

      This problem is actually keeping me away from using this programming model as the resulting syntax for raising events would be less practical than with regular method call.
      Sure, it means that I don't absolutly need to raise events in my case, but not being able to use varargs seems a bit tough to me.

        Gliffy Diagrams

          Attachments

            Activity

              People

              • Assignee:
                Unassigned
                Reporter:
                pisce toto titi
              • Votes:
                1 Vote for this issue
                Watchers:
                0 Start watching this issue

                Dates

                • Created:
                  Updated: