Bug 133375 [Viewers] Need access to the element comparer of a tree selection
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TreeSelection.java
this(new InitializeData(paths, null));
	}
	/**
	 * Constructs a selection based on the elements identified by the given tree
	 * paths.
	 * 
	 * @param paths
	 *            tree paths
	 * @param comparer 
	 *            the comparer, or <code>null</code> if default equals is to be used
	 */
	public TreeSelection(TreePath[] paths, IElementComparer comparer) {
		this(new InitializeData(paths, comparer));
	}
	/**
	 * Constructs a selection based on the elements identified by the given tree
	 * path.
	 * 
	 * @param treePath
	 *            tree path, or <code>null</code> for an empty selection
	 */
	public TreeSelection(TreePath treePath) {
		this(treePath != null ? new TreePath[] { treePath } : EMPTY_TREE_PATHS, null);
	}
	/**
	 * Constructs a selection based on the elements identified by the given tree
	 * path.
	 * 
	 * @param treePath
	 *            tree path, or <code>null</code> for an empty selection