Description Chris Audley 2009-04-22 10:19:50 EDT

Build ID: M20090211-1700

Steps To Reproduce:
Implement a subclass of AbstractObservable with Cloneable support.

More information:
The org.eclipse.core.databinding.observable.ChangeManager class doesn't implement a clone() method, making it impossible to implement a subclass of AbstractObservable with Cloneable support.

If you attempt to clone an instance of ChangeManager, the clone will contain references to the same listenerLists and listenerTypes arrays as the original.  Listeners previously added to the original ChangeManager will receive events from the clone, and attempts to add or remove listeners on the original or its clone will affect both objects.

ChangeManager can support Cloneable by implementing a clone method that resets the array references in the clone.

public void clone() throws CloneNotSupportedException
{
    ChangeManager duplicate = (ChangeManager)super.clone();
    duplicate.listenerLists = null;
    duplicate.listenerTypes = null;
    return duplicate;
}