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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 import java.lang.reflect.Method;
     18 
     19 /**
     20  * Test reflection on old-style inner classes.
     21  */
     22 public class Main {
     23     private static Runnable theRunnable = new Runnable() {
     24             public void run() { }
     25         };
     26 
     27     private static Runnable create() {
     28         return new Runnable() {
     29                 public void run() { }
     30             };
     31     }
     32 
     33     private static String nameOf(Class clazz) {
     34         return (clazz == null) ? "(null)" : clazz.getName();
     35     }
     36 
     37     private static String nameOf(Method meth) {
     38         return (meth == null) ? "(null)" : meth.toString();
     39     }
     40 
     41     private static void infoFor(Class clazz) {
     42         System.out.println("Class: " + nameOf(clazz) + "\n" +
     43                 "  getDeclaringClass(): " +
     44                 nameOf(clazz.getDeclaringClass()) + "\n" +
     45                 "  getEnclosingClass(): " +
     46                 nameOf(clazz.getEnclosingClass()) + "\n" +
     47                 "  getEnclosingMethod(): " +
     48                 nameOf(clazz.getEnclosingMethod()));
     49     }
     50 
     51     public static void main(String args[]) {
     52         infoFor(theRunnable.getClass());
     53         infoFor(create().getClass());
     54     }
     55 }
     56