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 }