Bug 166600 [DataBinding] Refactor tests to be in the correct packages
tests/org.eclipse.jface.tests.databinding/src/org/eclipse/jface/tests/databinding/observable/list/WritableListTest.java
int count;
            ListChangeEvent event;
            
            /* (non-Javadoc)
             * @see org.eclipse.core.databinding.observable.list.IListChangeListener#handleListChange(org.eclipse.core.databinding.observable.list.ListChangeEvent)
             */
            public void handleListChange(ListChangeEvent event) {
                count++;
                this.event = event;
            }
        }