/* * Copyright (C) 2006 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** * This causes most VMs to lock up. * * Interrupting threads in class initialization should NOT work. */ public class Main { public static boolean aInitialized = false; public static boolean bInitialized = false; static public void main(String[] args) { Thread thread1, thread2; System.out.println("Deadlock test starting."); thread1 = new Thread() { public void run() { new A(); } }; thread2 = new Thread() { public void run() { new B(); } }; thread1.start(); // Give thread1 a chance to start before starting thread2. try { Thread.sleep(1000); } catch (InterruptedException ie) { } thread2.start(); try { Thread.sleep(6000); } catch (InterruptedException ie) { } System.out.println("Deadlock test interrupting threads."); thread1.interrupt(); thread2.interrupt(); System.out.println("Deadlock test main thread bailing."); System.out.println("A initialized: " + aInitialized); System.out.println("B initialized: " + bInitialized); System.exit(0); } } class A { static { System.out.println("A initializing..."); try { Thread.sleep(3000); } catch (InterruptedException ie) { } new B(); System.out.println("A initialized"); Main.aInitialized = true; } } class B { static { System.out.println("B initializing..."); try { Thread.sleep(3000); } catch (InterruptedException ie) { } new A(); System.out.println("B initialized"); Main.bInitialized = true; } }