1 /*

     2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright (c) 2019 SAP SE. All rights reserved.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  */

    24 

    25 /**

    26  * @test

    27  * @summary Test that the default of flag ShowCodeDetailsInExceptionMessages is 'false',

    28  *          i.e., make sure the VM does not print the message on default.

    29  * @bug 8218628

    30  * @library /test/lib

    31  * @compile -g SuppressMessagesTest.java

    32  * @run main/othervm SuppressMessagesTest noMessage

    33  */

    34 /**

    35  * @test

    36  * @summary Test that the messages are suppressed if flag ShowCodeDetailsInExceptionMessages is 'false'.

    37  * @bug 8218628

    38  * @library /test/lib

    39  * @compile -g SuppressMessagesTest.java

    40  * @run main/othervm -XX:-ShowCodeDetailsInExceptionMessages SuppressMessagesTest noMessage

    41  */

    42 /**

    43  * @test

    44  * @summary Test that the messages are printed if flag ShowCodeDetailsInExceptionMessages is 'true'.

    45  * @bug 8218628

    46  * @library /test/lib

    47  * @compile -g SuppressMessagesTest.java

    48  * @run main/othervm -XX:+ShowCodeDetailsInExceptionMessages SuppressMessagesTest printMessage

    49  */

    50 

    51 import jdk.test.lib.Asserts;

    52 

    53 class A {

    54     int aFld;

    55 }

    56 

    57 // Tests that the messages are suppressed by flag ShowCodeDetailsInExceptionMessages.

    58 public class SuppressMessagesTest {

    59 

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

    61         A a = null;

    62 

    63         if (args.length != 1) {

    64             Asserts.fail("You must specify one arg for this test");

    65         }

    66 

    67         try {

    68             @SuppressWarnings("null")

    69             int val = a.aFld;

    70             System.out.println(val);

    71             Asserts.fail();

    72         } catch (NullPointerException e) {

    73             System.out.println("Stacktrace of the expected exception:");

    74             e.printStackTrace(System.out);

    75             if (args[0].equals("noMessage")) {

    76                 Asserts.assertNull(e.getMessage());

    77             } else {

    78                 Asserts.assertEquals(e.getMessage(), "Cannot read field \"aFld\" because \"a\" is null");

    79             }

    80         }

    81     }

    82 }