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 public class Main { 18 public static void main(String[] args) { 19 checkExceptions(); 20 checkTiming(); 21 } 22 23 public static void sleep(int msec) { 24 try { 25 Thread.sleep(msec); 26 } catch (InterruptedException ie) { 27 System.err.println("sleep interrupted"); 28 } 29 } 30 31 static void checkExceptions() { 32 try { 33 System.out.println(PartialInit.FIELD0); 34 System.err.println("Construction of PartialInit succeeded unexpectedly"); 35 } catch (ExceptionInInitializerError eiie) { 36 System.out.println("Got expected EIIE for FIELD0"); 37 } 38 39 try { 40 System.out.println(PartialInit.FIELD0); 41 System.err.println("Load of FIELD0 succeeded unexpectedly"); 42 } catch (NoClassDefFoundError ncdfe) { 43 System.out.println("Got expected NCDFE for FIELD0"); 44 } 45 try { 46 System.out.println(PartialInit.FIELD1); 47 System.err.println("Load of FIELD1 succeeded unexpectedly"); 48 } catch (NoClassDefFoundError ncdfe) { 49 System.out.println("Got expected NCDFE for FIELD1"); 50 } 51 } 52 53 static void checkTiming() { 54 FieldThread fieldThread = new FieldThread(); 55 MethodThread methodThread = new MethodThread(); 56 57 fieldThread.start(); 58 methodThread.start(); 59 60 /* start class init */ 61 IntHolder zero = SlowInit.FIELD0; 62 63 /* init complete; allow other threads time to finish printing */ 64 Main.sleep(500); 65 66 /* print all values */ 67 System.out.println("Fields (main thread): " + 68 SlowInit.FIELD0.getValue() + SlowInit.FIELD1.getValue() + 69 SlowInit.FIELD2.getValue() + SlowInit.FIELD3.getValue()); 70 } 71 72 static class FieldThread extends Thread { 73 public void run() { 74 /* allow class init to start */ 75 Main.sleep(200); 76 77 /* print fields; should delay until class init completes */ 78 System.out.println("Fields (child thread): " + 79 SlowInit.FIELD0.getValue() + SlowInit.FIELD1.getValue() + 80 SlowInit.FIELD2.getValue() + SlowInit.FIELD3.getValue()); 81 } 82 } 83 84 static class MethodThread extends Thread { 85 public void run() { 86 /* allow class init to start */ 87 Main.sleep(400); 88 89 /* use a method that shouldn't be accessible yet */ 90 SlowInit.printMsg("MethodThread message"); 91 } 92 } 93 } 94
