大名鼎鼎的java动态脚本语言。已经通过了sun的认证

				package groovy.bugs								/**				 * TODO: GROOVY-1059				 *				 *    Accessible to a closure attribute of an abject with the operator ".@".				 *    For examples, all of the expressions				 *				 *            object.@closure()				 *            object.@closure.call()				 *            object.@closure.doCall()				 *            (object.@closure)()				 *				 *    have the same meaning.				 *				 * @author  John Wilson				 * @author  Pilho Kim				 */								class Groovy1059_Bug extends GroovyTestCase {								    void testClosureAsAttribute() {				        def x = new Groovy1059Foo()								        println( x.say() )				        println( (x.@say)() )				        println( x.@say() )  // TODO: Groovy-1059 should work				        println( x.@say.call() )				        println( x.@say.doCall() )				        println( x.@say2() )								        assert "I am a Method" == x.say()				        assert "I am a Method" == x.@say2()				        assert "I am a Closure" == (x.@say)()				        assert "I am a Closure" == x.@say()				        assert x.@say() == (x.@say)()				        assert x.@say() == x.@say.call()				        assert x.@say() == x.@say.doCall()				        assert x.@say() != x.say()				        assert x.@say2() == x.say()				    }								}								class Groovy1059Foo {								    def public say = { it -> return "I am a Closure" }				    def public say2 = this.&say								    public Object say() {				       return "I am a Method"				    }				}