Bug 54737 Libraries dialog doesn't remember status of items in library tree
Preferences > Java > Build Path > User Libraries: The dialog does not seem to correctly remember the status of the items in the "Defined user libraries" tree. When I leave the dialog I close (un-cascade) all items. When I open the dialog again, most of the items are open (cascaded) again. This is disturbing because I cannot overview the items. It's like opening the Windows explorer with not only the drives shown but all folders being open.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/TreeListDialogField.java
}
			});
		}
	}
	/**
	* Refreshes the tree.
	*/
	public void refresh() {
		if (fTree != null) {
			fTree.refresh();
		}
	}
	
	/**
	* Refreshes the tree.
	*/
	public void refresh(Object element) {
		if (fTree != null) {
			fTree.refresh(element);
		}
	}	
	
	private List moveUp(List elements, List move) {
		int nElements= elements.size();
		List res= new ArrayList(nElements);
		Object floating= null;
		for (int i= 0; i < nElements; i++) {
			Object curr= elements.get(i);
			if (move.contains(curr)) {
				res.add(curr);