Bug 66439 Copy of Class causes update error in package explorer
RC1 RHEL JDK 1.4.2_02 Motif I have experienced a problem where I copy a java file and paste it into the same package, accepting the default new name (CopyOfClass.java) However, the package view does not list the class, but it does list 2 instances of the last class in the package (note that I am using the hierarchical view). The file is aparently inserted in the correct location, but the name->class mapping is incorrect: clicking on classes that appear before where the new class should be inserted brings up the correct class, but clicking on classes that appear after the inserted class brings up a different class than the one selected. Restarting eclipse causes the problem to go away
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
int oldCnt = -1;
		if (widget == tree)
			oldCnt = getItemCount(tree);
		Item[] items = getChildren(widget);
		
		CustomHashtable expanded = newHashtable(CustomHashtable.DEFAULT_CAPACITY); 
		for (int i = 0; i < items.length; ++i) {
			if (getExpanded(items[i])) {
				Object element = items[i].getData();
				if (element != null) {
					expanded.put(element, element);
				}
			}
		}
		int min = Math.min(elementChildren.length, items.length);
		
		
		
		
		
		for (int i = items.length; --i >= min;) {
			if (items[i].getData() != null) {
				disassociate(items[i]);
			}
			items[i].dispose();
		}