protected CompilationUnit getASTRoot(ICompilationUnit cu) {
protected static CompilationUnit getASTRoot(ICompilationUnit cu) {
	protected CompilationUnit getASTRoot(ICompilationUnit cu) {		ASTParser parser= ASTParser.newParser(AST.JLS3);		parser.setSource(cu);		parser.setResolveBindings(true);		return (CompilationUnit) parser.createAST(null);	}