1 /* 2 * Copyright (c) 2006, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test 26 * @bug 6358034 6568560 8198613 27 * @key headful 28 * @summary Tests that no exception is thrown when display mode is changed 29 * externally 30 * @compile UninitializedDisplayModeChangeTest.java DisplayModeChanger.java 31 * @run main/othervm UninitializedDisplayModeChangeTest 32 */ 33 34 import java.awt.EventQueue; 35 import java.awt.Toolkit; 36 import java.io.BufferedReader; 37 import java.io.File; 38 import java.io.IOException; 39 import java.io.InputStream; 40 import java.io.InputStreamReader; 41 import java.lang.reflect.InvocationTargetException; 42 43 public class UninitializedDisplayModeChangeTest { 44 public static volatile boolean failed = false; 45 public static void main(String[] args) { 46 Toolkit.getDefaultToolkit(); 47 try { 48 EventQueue.invokeAndWait(new Runnable() { 49 public void run() { 50 Thread.currentThread().setDefaultUncaughtExceptionHandler( 51 new Thread.UncaughtExceptionHandler() { 52 public void uncaughtException(Thread t, 53 Throwable e) 54 { 55 System.err.println("Exception Detected:"); 56 e.printStackTrace(); 57 failed = true; 58 } 59 } 60 ); 61 } 62 }); 63 } catch (InterruptedException ex) { 64 ex.printStackTrace(); 65 } catch (InvocationTargetException ex) { 66 ex.printStackTrace(); 67 } 68 69 Process childProc; 70 String classPath = System.getProperty("java.class.path" , "."); 71 String cmd = new String(System.getProperty("java.home") + 72 File.separator + 73 "bin" + 74 File.separator + 75 "java -cp " + classPath + 76 " DisplayModeChanger"); 77 78 System.out.println("Launching the display mode changer process"); 79 System.out.println("cmd="+cmd); 80 try { 81 childProc = Runtime.getRuntime().exec(cmd); 82 StreamProcessor err = 83 new StreamProcessor("stderr", childProc.getErrorStream()); 84 StreamProcessor out = 85 new StreamProcessor("stdout", childProc.getInputStream()); 86 err.start(); 87 out.start(); 88 89 childProc.waitFor(); 90 } catch (Exception e) { 91 failed = true; 92 e.printStackTrace(); 93 } 94 95 if (failed) { 96 throw new RuntimeException("Test Failed: exception detected"); 97 } 98 System.out.println("Test Passed."); 99 } 100 101 static class StreamProcessor extends Thread { 102 InputStream is; 103 String inputType; 104 StreamProcessor(String inputType, InputStream is) { 105 this.inputType = inputType; 106 this.is = is; 107 } 108 public void run() { 109 try { 110 InputStreamReader isr = new InputStreamReader(is); 111 BufferedReader br = new BufferedReader(isr); 112 String line = null; 113 while ( (line = br.readLine()) != null) { 114 System.out.println("Display Changer "+inputType+ 115 " output > " + line); 116 } 117 } catch (IOException ioe) { 118 ioe.printStackTrace(); 119 } 120 } 121 } 122 }