Hi,
I am trying to deploy an EAR which contains entity beans derived from a
generic base interface. Basically the structure looks like this:
public interface GenericEntity<PK extends Serializable> {
PK getEntityId();
void setEntityId(PK entityId);
}
public interface Dummy extends GenericEntity<Long> {
}
public class DummyImpl implements Dummy, Serializable {
private Long entityId;
@Override Long getEntityId() {
return entityId;
}
@Override void setEntityId(Long entityId) {
this.entityId = entityId;
}
}
A minimal sample with Maven2 is at
http://dalighe.de/geronimo/generic-entity.tar.gz
The DummyImpl-entity is accessed via a DAO (stateless session bean).
While everything deploys just fine into Geronimo, I get an exception
when I try to access the DAO with a stand-alone client. The exception
thrown is:
07:13:50,483 FATAL [remote] Error caught during request processing
java.lang.VerifyError: (class: mypackage/DummyImpl, method: getEntityId
signature: ()Ljava/lang/Long;) Wrong return type in function
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2291)
at java.lang.Class.getDeclaredField(Class.java:1880)
at
java.io.ObjectStreamClass.getDeclaredSUID(ObjectStreamClass.java:1610)
at java.io.ObjectStreamClass.access$700(ObjectStreamClass.java:52)
at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:425)
at java.security.AccessController.doPrivileged(Native Method)
at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:413)
at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:310)
at
java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:547)
at
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583)
at
java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at
org.apache.openejb.client.EJBRequest$Body.readMethodParameters(EJBRequest.java:385)
at
org.apache.openejb.client.EJBRequest$Body.readExternal(EJBRequest.java:199)
at
org.apache.openejb.server.ejbd.EjbRequestHandler.processRequest(EjbRequestHandler.java:91)
at
org.apache.openejb.server.ejbd.EjbDaemon.processEjbRequest(EjbDaemon.java:163)
at
org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:121)
at
org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:83)
at
org.apache.openejb.server.ejbd.EjbServer.service(EjbServer.java:60)
at
org.apache.openejb.server.ServiceLogger.service(ServiceLogger.java:75)
at
org.apache.openejb.server.ServiceAccessController.service(ServiceAccessController.java:55)
at
org.apache.openejb.server.ServiceDaemon$1.run(ServiceDaemon.java:117)
at java.lang.Thread.run(Thread.java:619)
During a previous test-run I had the member variable of DummyImpl
defined as the primitive "long" and relied on auto-boxing. In that
test-run the call to the session bean's create-method was executed but
an identical exception was thrown somewhere deep in the bowels of
OpenJPA during the parsing of the entity's meta-data.
Can someone help me out with this problem?
Thanks a lot in advance!
Regards, Janko
