Hi,

Sorry if someone has already asked this ... I am having a problem extending EntityHome with EJB3 SFSBs. So, basically, I have a interface to define the methods I want to use in EntityHome:


| public interface PersonDaoInt {
|  EntityManager getEntityManager();
|  Object getId();
|  String persist ();
|  String update ();
|  String remove ();
|  public void destroy ();
| }
|

Then, the bean method is like the following:


| @Stateful
| @Name("personDao")
| public class PersonDao extends EntityHome <Person>
|                implements PersonDaoInt {
|  
|  // Configure the entity manager
|  @PersistenceContext (type=EXTENDED)
|  private EntityManager em;
|  
|  public EntityManager getEntityManager () {
|   return em;
|  }
|
|  // Configure the HTTP GET parameter on the page
|  @RequestParameter
|  Long pid;
|
|  public Object getId() { return pid; }
|
|  // SFSB requirement
|  @Remove @Destroy
|  public void destroy () { }
| }
|

But at deployment time (JBoss 4.0.5 GA), EJB3 complains the following. Does it mean the "remove()" is no longer allowed in EJB3 SFSBs?


| java.lang.IllegalArgumentException: methods with same signature remove() but incompatible return types: void and others
|      at sun.misc.ProxyGenerator.checkReturnTypes (ProxyGenerator.java:610)
|      at sun.misc.ProxyGenerator.generateClassFile (ProxyGenerator.java:420)
|      at sun.misc.ProxyGenerator.generateProxyClass (ProxyGenerator.java:306)
|      at java.lang.reflect.Proxy.getProxyClass (Proxy.java:501)
|      at org.jboss.ejb3.stateful.BaseStatefulProxyFactory.init(BaseStatefulProxyFactory.java:58)
|      at org.jboss.ejb3.stateful.BaseStatefulProxyFactory.start(BaseStatefulProxyFactory.java:66)
|      at org.jboss.ejb3.stateful.StatefulLocalProxyFactory.start(StatefulLocalProxyFactory.java:61)
|      at org.jboss.ejb3.ProxyDeployer.start(ProxyDeployer.java:105)
|      at org.jboss.ejb3.SessionContainer.start(SessionContainer.java:124)
|      at org.jboss.ejb3.stateful.StatefulContainer.start(StatefulContainer.java:91)
|      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.ServiceDelegateWrapper.startService(ServiceDelegateWrapper.java:102)
|      at org.jboss.system.ServiceMBeanSupport.jbossInternalStart (ServiceMBeanSupport.java:289)
|      at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle (ServiceMBeanSupport.java:245)
|      at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
|      at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25)
|      at java.lang.reflect.Method.invoke (Method.java:585)
|      at org.jboss.mx.interceptor.ReflectedDispatcher.invoke (ReflectedDispatcher.java:155)
|      at org.jboss.mx.server.Invocation.dispatch (Invocation.java:94)
|      at org.jboss.mx.server.Invocation.invoke (Invocation.java:86)
|      at org.jboss.mx.server.AbstractMBeanInvoker.invoke (AbstractMBeanInvoker.java:264)
|      at org.jboss.mx.server.MBeanServerImpl.invoke (MBeanServerImpl.java:659)
|      at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
|      at $Proxy0.start(Unknown Source)
|      at org.jboss.system.ServiceController.start (ServiceController.java:417)
|      at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
|      at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25)
|      at java.lang.reflect.Method.invoke (Method.java:585)
|      at org.jboss.mx.interceptor.ReflectedDispatcher.invoke (ReflectedDispatcher.java:155)
|      at org.jboss.mx.server.Invocation.dispatch (Invocation.java:94)
|      at org.jboss.mx.server.Invocation.invoke (Invocation.java:86)
|      at org.jboss.mx.server.AbstractMBeanInvoker.invoke (AbstractMBeanInvoker.java:264)
|      at org.jboss.mx.server.MBeanServerImpl.invoke (MBeanServerImpl.java:659)
|      at org.jboss.mx.util.MBeanProxyExt.invoke (MBeanProxyExt.java:210)
|      at $Proxy54.start(Unknown Source)
|      at org.jboss.ejb3.JmxKernelAbstraction.install(JmxKernelAbstraction.java:96)
|      at org.jboss.ejb3.Ejb3Deployment.registerEJBContainer(Ejb3Deployment.java:281)
|      at org.jboss.ejb3.Ejb3Deployment.start(Ejb3Deployment.java:328)
|      at org.jboss.ejb3.Ejb3Module.startService(Ejb3Module.java:91)
|      at org.jboss.system.ServiceMBeanSupport.jbossInternalStart (ServiceMBeanSupport.java:289)
|      at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle (ServiceMBeanSupport.java:245)
|      at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
|      at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25)
|      at java.lang.reflect.Method.invoke (Method.java:585)
| ... ...
|

Anyone know what's going on? Thanks. Please let me know if you want more error trace.

cheers
Michael

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