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provacanza
 Post subject: Bug: ClassCastException when using event listeners
PostPosted: Thu Oct 13, 2005 2:35 pm 
Newbie

Joined: Mon Sep 12, 2005 3:25 pm
Posts: 4
Hello,

I think there is a bug in org.hibernate.cfg.Configuration. The line
Code:
eventListeners.setSaveOrUpdateEventListeners( ( SaveOrUpdateEventListener[] ) listeners );

throws a CastClassException. I tried this litte program:
Code:
class MyClass {
  public static void main(String[] args) {
    Object[] listeners = new Object[1];
    listeners[0]=new MyClass();

    MyClass[] results = (MyClass[]) listeners;
    System.out.println("Finished");
  }
}

and it also throws a ClassCastException.
I wonder if this has something to do with the java version I'm using, since I don't think that I'm the first one who is using event listeners.

I hope I'm not wrongly reporting this error.
Best regards,
Björn

Hibernate version:
3.1beta1

Java version:
1.5.0
Code:
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d
 Post subject:
PostPosted: Thu Oct 13, 2005 3:14 pm 
Expert
Expert

Joined: Mon Jul 04, 2005 5:19 pm
Posts: 720
I suggest you revisit MyClass
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provacanza
 Post subject:
PostPosted: Thu Oct 13, 2005 3:24 pm 
Newbie

Joined: Mon Sep 12, 2005 3:25 pm
Posts: 4
Could you elaborate?
In my opinion the small example shows that it is not possible to cast an array of Objects to an array of MyClass or SaveOrUpdateEventListeners.
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provacanza
 Post subject:
PostPosted: Fri Oct 14, 2005 3:03 am 
Newbie

Joined: Mon Sep 12, 2005 3:25 pm
Posts: 4
Hello again,

@Dennis: I still can't see where a fault should be in my test program except that it reproduces the ClassCastException, as expected.

Despite this, I now noticed that the bug I reported has apparently been fixed in revision 1.96 of the file Configuration.java. I will get a new library version and test it this evening.

Björn
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d
 Post subject:
PostPosted: Fri Oct 14, 2005 12:27 pm 
Expert
Expert

Joined: Mon Jul 04, 2005 5:19 pm
Posts: 720
MyClass might as well be a one line 'throw new Exception()' . yes, it throws a CCE, so it looks like the JVm is working. However it has nothing to do w/ Hibernat.e
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