try changing the snippet:
public void destroy (NewsEntity newsEntity)
| {
| em.merge (newsEntity);
| if( em.contains (newsEntity))
| logger.info ("The Entity is attached to current Persistence
Context");
| else
| logger.error ("Entity is not attached!");
| /* throws exception */
| em.remove (newsEntity);
| }
to something like:
public void destroy (NewsEntity newsEntity)
| {
| NewsEntity managedEntity = em.merge (newsEntity);
|
| if( em.contains (managedEntity))
| {
| logger.info ("The Entity is attached to current Persistence
Context");
| }
| else
| {
| logger.error ("Entity is not attached!");
| }
|
| /* throws exception */
| em.remove (managedEntity);
| }
the problem is that you should be using the managed object returned by the
EntityManager.merge() method.
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