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  * @library /test/lib
  30  * @compile -g SuppressMessagesTest.java
  31  * @run main/othervm SuppressMessagesTest noMessage
  32  */
  33 /**
  34  * @test
  35  * @summary Test that the messages are suppressed if flag ShowCodeDetailsInExceptionMessages is 'false'.
  36  * @library /test/lib
  37  * @compile -g SuppressMessagesTest.java
  38  * @run main/othervm -XX:-ShowCodeDetailsInExceptionMessages SuppressMessagesTest noMessage
  39  */
  40 /**
  41  * @test
  42  * @summary Test that the messages are printed if flag ShowCodeDetailsInExceptionMessages is 'true'.
  43  * @library /test/lib
  44  * @compile -g SuppressMessagesTest.java
  45  * @run main/othervm -XX:+ShowCodeDetailsInExceptionMessages SuppressMessagesTest printMessage
  46  */
  47 
  48 import jdk.test.lib.Asserts;
  49 
  50 class A {
  51     int aFld;
  52 }
  53 
  54 // Tests that the messages are suppressed by flag ShowCodeDetailsInExceptionMessages.
  55 public class SuppressMessagesTest {
  56 
  57     public static void main(String[] args) throws Exception {
  58         A a = null;
  59 
  60         if (args.length != 1) {
  61             Asserts.fail("You must specify one arg for this test.");
  62         }
  63 
  64         try {
  65             int val = a.aFld;
  66             System.out.println(val);
  67             Asserts.fail();
  68         } catch (NullPointerException e) {
  69             System.out.println("Stacktrace of the expected exception:");
  70             e.printStackTrace(System.out);
  71             if (args[0].equals("noMessage")) {
  72                 Asserts.assertNull(e.getMessage());
  73             } else {
  74                 Asserts.assertEquals(e.getMessage(), "Cannot read field 'aFld' because 'a' is null.");
  75             }
  76         }
  77     }
  78 }