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
}
	}
	
	protected Widget doFindInputItem(Object element) {
		
		Object root = getRoot();
		if (root == null) {
			return null;
		}
		if (equals(root, element)) {
			return getControl();
		}
		return null;
	}
	
	protected Widget doFindItem(Object element) {
		
		Object root = getRoot();
		if (root == null) {
			return null;
		}
		Item[] items = getChildren(getControl());
		if (items != null) {
			for (int i = 0; i < items.length; i++) {
				Widget o = internalFindItem(items[i], element);
				if (o != null) {
					return o;
				}
			}
		}