1 /* 2 * Copyright (c) 2013, 2015, 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 /* 26 * @test 27 * @bug 8065896 28 * @summary Synchronous signals during error reporting may terminate or hang VM process 29 * @library /testlibrary 30 * @author Thomas Stuefe (SAP) 31 * @modules java.base/jdk.internal.misc 32 * java.management 33 */ 34 35 import java.io.BufferedReader; 36 import java.io.File; 37 import java.io.FileInputStream; 38 import java.io.InputStreamReader; 39 import java.util.regex.Pattern; 40 41 import jdk.test.lib.OutputAnalyzer; 42 import jdk.test.lib.Platform; 43 import jdk.test.lib.ProcessTools; 44 45 public class SecondaryErrorTest { 46 47 48 public static void main(String[] args) throws Exception { 49 50 // Do not execute for windows, nor for non-debug builds 51 if (Platform.isWindows()) { 52 return; 53 } 54 55 if (!Platform.isDebugBuild()) { 56 return; 57 } 58 59 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 60 "-XX:+UnlockDiagnosticVMOptions", 61 "-Xmx100M", 62 "-XX:-CreateCoredumpOnCrash", 63 "-XX:ErrorHandlerTest=15", 64 "-XX:TestCrashInErrorHandler=14", 65 "-version"); 66 67 OutputAnalyzer output_detail = new OutputAnalyzer(pb.start()); 68 69 // we should have crashed with a SIGFPE 70 output_detail.shouldMatch("# A fatal error has been detected by the Java Runtime Environment:.*"); 71 output_detail.shouldMatch("# +SIGFPE.*"); 72 73 // extract hs-err file 74 String hs_err_file = output_detail.firstMatch("# *(\\S*hs_err_pid\\d+\\.log)", 1); 75 if (hs_err_file == null) { 76 throw new RuntimeException("Did not find hs-err file in output.\n"); 77 } 78 79 // scan hs-err file: File should contain the "[error occurred during error reporting..]" 80 // markers which show that the secondary error handling kicked in and handled the 81 // error successfully. As an added test, we check that the last line contains "END.", 82 // which is an end marker written in the last step and proves that hs-err file was 83 // completely written. 84 File f = new File(hs_err_file); 85 if (!f.exists()) { 86 throw new RuntimeException("hs-err file missing at " 87 + f.getAbsolutePath() + ".\n"); 88 } 89 90 System.out.println("Found hs_err file. Scanning..."); 91 92 FileInputStream fis = new FileInputStream(f); 93 BufferedReader br = new BufferedReader(new InputStreamReader(fis)); 94 String line = null; 95 96 Pattern [] pattern = new Pattern[] { 97 Pattern.compile("Will crash now \\(TestCrashInErrorHandler=14\\)..."), 98 Pattern.compile("\\[error occurred during error reporting \\(test secondary crash 1\\).*\\]"), 99 Pattern.compile("Will crash now \\(TestCrashInErrorHandler=14\\)..."), 100 Pattern.compile("\\[error occurred during error reporting \\(test secondary crash 2\\).*\\]"), 101 }; 102 int currentPattern = 0; 103 104 String lastLine = null; 105 while ((line = br.readLine()) != null) { 106 if (currentPattern < pattern.length) { 107 if (pattern[currentPattern].matcher(line).matches()) { 108 System.out.println("Found: " + line + "."); 109 currentPattern ++; 110 } 111 } 112 lastLine = line; 113 } 114 br.close(); 115 116 if (currentPattern < pattern.length) { 117 throw new RuntimeException("hs-err file incomplete (first missing pattern: " + currentPattern + ")"); 118 } 119 120 if (!lastLine.equals("END.")) { 121 throw new RuntimeException("hs-err file incomplete (missing END marker.)"); 122 } else { 123 System.out.println("End marker found."); 124 } 125 126 System.out.println("OK."); 127 128 } 129 130 } 131 132