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 int val = a.aFld; 69 System.out.println(val); 70 Asserts.fail(); 71 } catch (NullPointerException e) { 72 System.out.println("Stacktrace of the expected exception:"); 73 e.printStackTrace(System.out); 74 if (args[0].equals("noMessage")) { 75 Asserts.assertNull(e.getMessage()); 76 } else { 77 Asserts.assertEquals(e.getMessage(), "Cannot read field 'aFld' because 'a' is null."); 78 } 79 } 80 } 81 }