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 static { 19 staticMethodCalledByClinit(); 20 } 21 22 private static void staticMethodCalledByClinit() { 23 // Test that DeliverException works when we need to unwind to a handler -- this method -- 24 // that is currently a resolution stub because it's running on behalf of <clinit>. 25 try { 26 throwDuringClinit(); 27 System.err.println("didn't throw!"); 28 } catch (NullPointerException ex) { 29 System.out.println("caught exception thrown during clinit"); 30 } 31 } 32 33 private static void throwDuringClinit() { 34 throw new NullPointerException(); 35 } 36 37 public static void main(String[] args) { 38 checkExceptions(); 39 checkTiming(); 40 } 41 42 public static void sleep(int msec) { 43 try { 44 Thread.sleep(msec); 45 } catch (InterruptedException ie) { 46 System.err.println("sleep interrupted"); 47 } 48 } 49 50 static void checkExceptions() { 51 try { 52 System.out.println(PartialInit.FIELD0); 53 System.err.println("Construction of PartialInit succeeded unexpectedly"); 54 } catch (ExceptionInInitializerError eiie) { 55 System.out.println("Got expected EIIE for FIELD0"); 56 } 57 58 try { 59 System.out.println(PartialInit.FIELD0); 60 System.err.println("Load of FIELD0 succeeded unexpectedly"); 61 } catch (NoClassDefFoundError ncdfe) { 62 System.out.println("Got expected NCDFE for FIELD0"); 63 } 64 try { 65 System.out.println(PartialInit.FIELD1); 66 System.err.println("Load of FIELD1 succeeded unexpectedly"); 67 } catch (NoClassDefFoundError ncdfe) { 68 System.out.println("Got expected NCDFE for FIELD1"); 69 } 70 71 try { 72 System.out.println(Exploder.FIELD); 73 System.err.println("Load of FIELD succeeded unexpectedly"); 74 } catch (AssertionError expected) { 75 System.out.println("Got expected '" + expected.getMessage() + "' from Exploder"); 76 } 77 } 78 79 static void checkTiming() { 80 FieldThread fieldThread = new FieldThread(); 81 MethodThread methodThread = new MethodThread(); 82 83 fieldThread.start(); 84 methodThread.start(); 85 86 /* start class init */ 87 IntHolder zero = SlowInit.FIELD0; 88 89 /* wait for children to complete */ 90 try { 91 fieldThread.join(); 92 methodThread.join(); 93 } catch (InterruptedException ie) { 94 System.err.println(ie); 95 } 96 97 /* print all values */ 98 System.out.println("Fields (main thread): " + 99 SlowInit.FIELD0.getValue() + SlowInit.FIELD1.getValue() + 100 SlowInit.FIELD2.getValue() + SlowInit.FIELD3.getValue()); 101 } 102 103 static class FieldThread extends Thread { 104 public void run() { 105 /* allow SlowInit's <clinit> to start */ 106 Main.sleep(5000); 107 108 /* collect fields; should delay until class init completes */ 109 int field0, field1, field2, field3; 110 field0 = SlowInit.FIELD0.getValue(); 111 field1 = SlowInit.FIELD1.getValue(); 112 field2 = SlowInit.FIELD2.getValue(); 113 field3 = SlowInit.FIELD3.getValue(); 114 115 /* let MethodThread print first */ 116 Main.sleep(5000); 117 System.out.println("Fields (child thread): " + 118 field0 + field1 + field2 + field3); 119 } 120 } 121 122 static class MethodThread extends Thread { 123 public void run() { 124 /* allow SlowInit's <clinit> to start */ 125 Main.sleep(5000); 126 127 /* use a method that shouldn't be accessible yet */ 128 SlowInit.printMsg("MethodThread message"); 129 } 130 } 131 } 132
