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 { staticMethodCalledByClinit()19 staticMethodCalledByClinit(); 20 } 21 staticMethodCalledByClinit()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.out.println("didn't throw!"); 28 } catch (NullPointerException ex) { 29 System.out.println("caught exception thrown during clinit"); 30 } 31 } 32 throwDuringClinit()33 private static void throwDuringClinit() { 34 throw new NullPointerException(); 35 } 36 main(String[] args)37 public static void main(String[] args) { 38 checkExceptions(); 39 checkTiming(); 40 checkStaticMethodInvokeAfterFailedClinit(); 41 } 42 sleep(int msec)43 public static void sleep(int msec) { 44 try { 45 Thread.sleep(msec); 46 } catch (InterruptedException ie) { 47 System.out.println("sleep interrupted"); 48 } 49 } 50 checkExceptions()51 static void checkExceptions() { 52 try { 53 System.out.println(PartialInit.FIELD0); 54 System.out.println("Construction of PartialInit succeeded unexpectedly"); 55 } catch (ExceptionInInitializerError eiie) { 56 System.out.println("Got expected EIIE for FIELD0"); 57 } 58 59 try { 60 System.out.println(PartialInit.FIELD0); 61 System.out.println("Load of FIELD0 succeeded unexpectedly"); 62 } catch (NoClassDefFoundError ncdfe) { 63 System.out.println("Got expected NCDFE for FIELD0"); 64 } 65 try { 66 System.out.println(PartialInit.FIELD1); 67 System.out.println("Load of FIELD1 succeeded unexpectedly"); 68 } catch (NoClassDefFoundError ncdfe) { 69 System.out.println("Got expected NCDFE for FIELD1"); 70 } 71 72 try { 73 System.out.println(Exploder.FIELD); 74 System.out.println("Load of FIELD succeeded unexpectedly"); 75 } catch (AssertionError expected) { 76 System.out.println("Got expected '" + expected.getMessage() + "' from Exploder"); 77 } 78 } 79 checkTiming()80 static void checkTiming() { 81 FieldThread fieldThread = new FieldThread(); 82 MethodThread methodThread = new MethodThread(); 83 84 fieldThread.start(); 85 methodThread.start(); 86 87 /* start class init */ 88 IntHolder zero = SlowInit.FIELD0; 89 90 /* wait for children to complete */ 91 try { 92 fieldThread.join(); 93 methodThread.join(); 94 } catch (InterruptedException ie) { 95 System.out.println(ie); 96 } 97 98 /* print all values */ 99 System.out.println("Fields (main thread): " + 100 SlowInit.FIELD0.getValue() + SlowInit.FIELD1.getValue() + 101 SlowInit.FIELD2.getValue() + SlowInit.FIELD3.getValue()); 102 } 103 104 static class FieldThread extends Thread { run()105 public void run() { 106 /* allow SlowInit's <clinit> to start */ 107 Main.sleep(5000); 108 109 /* collect fields; should delay until class init completes */ 110 int field0, field1, field2, field3; 111 field0 = SlowInit.FIELD0.getValue(); 112 field1 = SlowInit.FIELD1.getValue(); 113 field2 = SlowInit.FIELD2.getValue(); 114 field3 = SlowInit.FIELD3.getValue(); 115 116 /* let MethodThread print first */ 117 Main.sleep(5000); 118 System.out.println("Fields (child thread): " + 119 field0 + field1 + field2 + field3); 120 } 121 } 122 123 static class MethodThread extends Thread { run()124 public void run() { 125 /* allow SlowInit's <clinit> to start */ 126 Main.sleep(5000); 127 128 /* use a method that shouldn't be accessible yet */ 129 SlowInit.printMsg("MethodThread message"); 130 } 131 } 132 checkStaticMethodInvokeAfterFailedClinit()133 static void checkStaticMethodInvokeAfterFailedClinit() { 134 System.out.println("checkStaticMethodInvokeAfterFailedClinit START"); 135 136 // Call static method to cause implicit clinit. 137 try { 138 ClassWithThrowingClinit.staticMethod(); 139 System.out.println("checkStaticMethodInvokeAfterFailedClinit FAILED" 140 + " due to missing ExceptionInInitializerError"); 141 } catch (ExceptionInInitializerError expected) { 142 } 143 144 // Call again to make sure we still get the expected error. 145 try { 146 ClassWithThrowingClinit.staticMethod(); 147 System.out.println("checkStaticMethodInvokeAfterFailedClinit FAILED" 148 + " due to missing NoClassDefFoundError"); 149 } catch (NoClassDefFoundError expected) { 150 } 151 System.out.println("checkStaticMethodInvokeAfterFailedClinit PASSED"); 152 } 153 154 static class ClassWithThrowingClinit { 155 static { throwDuringClinit()156 throwDuringClinit(); 157 } staticMethod()158 static void staticMethod() { 159 } 160 } 161 } 162