1 /*

     2  * Copyright (c) 1998, 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 4127657

    27  * @summary Check for correct handling of parameters to

    28  *          XXXXWriter.write(b, off, len).

    29  *

    30  */

    31 

    32 import java.io.*;

    33 

    34 public class WriteParams {

    35     static int values[] = {Integer.MIN_VALUE, -1, 0, 1, 4, 16, 31,

    36                            32, 33, Integer.MAX_VALUE};

    37     static char b[][] = {null, new char[32]};

    38 

    39     static void test(Writer wtr) throws Exception {

    40         int i = 0, j = 0, k = 0;

    41         boolean nullPtr = false, indexOutBnd = false;

    42 

    43         for (i = 0; i < b.length; i++) {

    44             for ( j = 0; j < values.length; j++) {

    45                 for ( k = 0; k < values.length; k++) {

    46 

    47                     nullPtr = (b[i] == null);

    48 

    49                     int bufLen = nullPtr ? 0 : b[i].length;

    50                     indexOutBnd =  ((values[j] + values[k]) < 0)

    51                         || (values[j] < 0)

    52                         || (values[j] > bufLen)

    53                         || (values[k] < 0)

    54                         || ((values[j] + values[k]) > bufLen);

    55 

    56                     try {

    57                         wtr.write(b[i], values[j], values[k]);

    58                     } catch (NullPointerException e) {

    59                         if (!nullPtr) {

    60                             throw new Exception

    61                                 ("should not throw NullPointerException");

    62                         }

    63                         continue;

    64                     } catch (IndexOutOfBoundsException e) {

    65                         if (!indexOutBnd) {

    66                             throw new Exception

    67                                 ("should not throw IndexOutOfBoundsException");

    68                         }

    69                         continue;

    70                     }

    71 

    72                     if (nullPtr || indexOutBnd) {

    73                         throw new Exception("Should have thrown an exception");

    74                     }

    75                 }

    76             }

    77         }

    78     }

    79 

    80     public static void main(String args[]) throws Exception{

    81         StringWriter sw = new StringWriter();

    82 

    83         test(sw);

    84 

    85         test(new BufferedWriter(sw));

    86 

    87         test(new CharArrayWriter());

    88 

    89         test(new OutputStreamWriter(System.err));

    90 

    91         test(new PipedWriter(new PipedReader()));

    92     }

    93 }