1 /*
   2  * Copyright (c) 2003, 2016, 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 import javax.sound.sampled.CompoundControl;
  25 import javax.sound.sampled.Control;
  26 
  27 /**
  28  * @test
  29  * @bug 4629190
  30  * @summary CompoundControl: getMemberControls() and toString() throw
  31  *          NullPointerException
  32  */
  33 public class ToString {
  34     public static void main(String args[]) throws Exception {
  35         System.out.println();
  36         System.out.println();
  37         System.out.println("4629190: CompoundControl: getMemberControls() and toString() throw NullPointerException");
  38 
  39         String firstControlTypeName = "first_Control_Type_Name";
  40         String secondControlTypeName = "second_Control_Type_Name";
  41         String thirdControlTypeName = "third_Control_Type_Name";
  42 
  43         Control.Type firstControlType = new TestControlType(firstControlTypeName);
  44         Control.Type secondControlType = new TestControlType(secondControlTypeName);
  45         Control.Type thirdControlType = new TestControlType(thirdControlTypeName);
  46 
  47         Control firstControl = new TestControl(firstControlType);
  48         Control secondControl = new TestControl(secondControlType);
  49         Control thirdControl = new TestControl(thirdControlType);
  50 
  51         String testCompoundControlTypeName = "CompoundControl_Type_Name";
  52         CompoundControl.Type testCompoundControlType
  53             = new TestCompoundControlType(testCompoundControlTypeName);
  54 
  55         Control[] setControls = { firstControl, secondControl, thirdControl };
  56         CompoundControl testedCompoundControl
  57             = new TestCompoundControl(testCompoundControlType, setControls);
  58 
  59         // this may throw exception if bug applies
  60         Control[] producedControls = testedCompoundControl.getMemberControls();
  61         System.out.println("Got "+producedControls.length+" member controls.");
  62 
  63         // this may throw exception if bug applies
  64         String producedString = testedCompoundControl.toString();
  65         System.out.println("toString() returned: "+producedString);
  66 
  67         System.out.println("Test passed.");
  68     }
  69 
  70 }
  71 
  72 class TestControl extends Control {
  73 
  74     TestControl(Control.Type type) {
  75         super(type);
  76     }
  77 }
  78 
  79 class TestControlType extends Control.Type {
  80 
  81     TestControlType(String name) {
  82         super(name);
  83     }
  84 }
  85 
  86 class TestCompoundControl extends CompoundControl {
  87 
  88     TestCompoundControl(CompoundControl.Type type, Control[] memberControls) {
  89         super(type, memberControls);
  90     }
  91 }
  92 
  93 class TestCompoundControlType extends CompoundControl.Type {
  94 
  95     TestCompoundControlType(String name) {
  96         super(name);
  97     }
  98 }