I have the following services offered by a stateful session bean. When a
business exception is thrown by the bean there is no problem, but when there is
a unchecked exception (like a Runtime Exception) the bean seems to be removed.
I don't see any messages indicating the removal of the bean itself, but any
call to the bean after the runtime exception caused a EJBNoSuchObjectException
on the client.
| @Stateful
| public class AddressBookBean implements AddressBookRemote, AddressBookLocal
| {
| ..
| public String ping(String ping)
| {
| return ping;
| }
|
| public void createException() throws ContactNotFoundException
| {
| throw new ContactNotFoundException("Testing Exception Handling");
| }
|
| public void createRuntimeException() throws RuntimeException
| {
| throw new RuntimeException("Testing Runtime Exception Handling");
| }
| ..
| }
|
Here is the client side code:
| System.out.println(addressBook.ping("Message"));
| try
| {
| addressBook.createException();
| }
| catch (ContactNotFoundException cnfe)
| {
| System.err.println("Expected exception received :
"+cnfe.getClass().getName());
| //This exception is throws correctly
| }
|
| System.out.println(addressBook.ping("Message"));
| try
| {
| addressBook.createRuntimeException();
| }
| catch (EJBException ee)
| {
| Exception rootException = ee.getCausedByException();
| System.err.println("Root Expected exception received :
"+rootException.getClass().getName());
| //The runtime exception is encapsulated in an EJBException
| }
| catch (RuntimeException re)
| {
| System.err.println("Expected exception received :
"+re.getClass().getName());
| }
|
| //THIS CALL CAUSES THE javax.ejb.EJBNoSuchObjectException: Could not find
Stateful bean:
| System.out.println(addressBook.ping("Message"));
|
I don't know if this is specified in the EJB3 Spec to behave like this, but it
does feel a bit like a bug. Any input on this issue would help me a great deal.
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