6:10 p.m.
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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