Bug 175418 [DataBinding] TreePath moved to internal package
In M5 TreePath moved from org.eclipse.core.databinding.observable.tree.TreePath to org.eclipse.core.internal.databinding.observable.tree.TreePath Non Internal Public interfaces such as: org.eclipse.core.databinding.observable.tree.IOrderedTreeProvider and org.eclipse.core.databinding.observable.tree.IUnorderedTreeProvider depend on this class.
bundles/org.eclipse.jface.databinding/src/org/eclipse/jface/internal/databinding/internal/viewers/UnorderedTreeContentProvider.java
node.getChildren();
			} else {
				enqueuedPrefetches.add(node);
				while (maxPrefetches >= 0
						&& enqueuedPrefetches.size() > maxPrefetches) {
					enqueuedPrefetches.removeFirst();
				}
			}
		}
	}
	private void processPrefetches() {
		while (staleCount == 0 && !enqueuedPrefetches.isEmpty()) {
			UnorderedTreeNode next = (UnorderedTreeNode) enqueuedPrefetches
					.removeLast();
			
			
			
			if (!next.isDisposed()) {
				next.prefetch();
			}
		}
	}
}