Problem Extending EntityHome with a SFSB
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
