I have a stateless bean injected by container. When called, this bean throws a
checked exception (Failure). But the exception that caller catches is runtime
exception (IllegalStateException).
Here is a short example:
| class Failure extends Exception {
| ...
| }
|
| @Local
| public interface OutputQueueHandler {
| public void handle(...) throws Failure;
| }
|
| @Stateless
| public class OutputQueueHandlerBean implements OutputQueueHandler {
|
| @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
| public void handle(...) throws Failure {
| try {
| ...
| persistError('ACK'); // 1.A
| throw new Failure(); // 1.B
| ...
| }
| catch (RuntimeException e) {
| throw new Failure(e);
| }
| }
| }
|
| @MessageDriven(...)
| @Depends(...)
| public class OutputQueueMDB implements MessageListener {
|
| @EJB
| OutputQueueHandler outputQueueHandler;
|
| public void onMessage(javax.jms.Message message) {
| ...
| try {
| outputQueueHandler.handle(...); // 2
| }
| catch (RuntimeException e) {
| persistError('HANDLE'); // 3
| }
| ...
| }
| }
|
I have read somewhere that it is OK to throw checked exceptions. All I can find
now is http://www.devx.com/Java/Article/30496/1763/page/3 (search for text
"Exception Handling")
Is it because the bean method is annotated with
TransactionAttributeType.REQUIRES_NEW?
How can I get my original exception?
My environment is JBoss 4.2.1 GA with EJB 3.0
Thanks,
Tvrtko
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