Bug 270457 [Viewers] [regression] CheckBoxTreeViewer clears check state after collapseAll
Hi there :) In my RCP I've a CheckBoxTreeViewer that looses check states for invisible items. Turns out if a disable the collapseAll() call things go back to normal. So, in a tree like this: [x] root [x] sub a collapseAll expandAll will create this: [x] root [] sub Could still be my fault, feel free to have me try some workarounds or other tests that help you find the cause...
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
disassociate(items[i]);
					}
					items[i].dispose();
					if (i + 1 < items.length) {
						
						
						
						System.arraycopy(items, i + 1, items, i, items.length - (i+1));
					}
					numItemsToDispose--;
				} else {
					i++;
				}
			}
		}
		
		
		
		
		
		
		
		for (int i = 0; i < min; ++i) {
			Item item = items[i];
			Object oldElement = item.getData();
			if (oldElement != null) {
				Object newElement = elementChildren[i];
				if (newElement != oldElement) {
					if (equals(newElement, oldElement)) {