1 /*
2 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2019, SAP. 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 /*
27 * @test
28 * @bug 8221738
29 * @summary Test that subsequent crashes will overwrite the file given to -XX:ErrorFile (unless %a is specified
30 * in the error file name)
31 * @library /test/lib
32 * @modules java.base/jdk.internal.misc
33 * @requires (vm.debug == true)
34 * @run driver ErrorFileOverwriteTest
35 */
36
37 import jdk.test.lib.process.OutputAnalyzer;
38 import jdk.test.lib.process.ProcessTools;
39
40 import java.io.*;
41 import java.util.regex.Pattern;
42
43 public class ErrorFileOverwriteTest {
44
45 private static File findHsErrorFileInOutput(OutputAnalyzer output) {
46
47 String hs_err_file = output.firstMatch("# *(\\S*hs_err_pid.*\\.log)", 1);
48 if(hs_err_file ==null) {
49 throw new RuntimeException("Did not find hs-err file in output.\n");
50 }
51
52 File f = new File(hs_err_file);
53 if (!f.exists()) {
54 throw new RuntimeException("hs-err file missing at "
55 + f.getAbsolutePath() + ".\n");
56 }
57
58 return f;
59
60 }
61
62 private static void scanHsErrorFileForContent(File f, Pattern[] pattern) throws IOException {
63 FileInputStream fis = new FileInputStream(f);
64 BufferedReader br = new BufferedReader(new InputStreamReader(fis));
65 String line = null;
66
67 int currentPattern = 0;
68
69 String lastLine = null;
70 while ((line = br.readLine()) != null && currentPattern < pattern.length) {
71 if (pattern[currentPattern].matcher(line).matches()) {
72 System.out.println("Found: " + line + ".");
73 currentPattern++;
74 }
75 lastLine = line;
76 }
77 br.close();
78
79 if (currentPattern < pattern.length) {
80 throw new RuntimeException("hs-err file incomplete (first missing pattern: " + pattern[currentPattern] + ")");
81 }
82
83 }
84
85 public static void do_test(boolean with_percent_p) throws Exception {
86
87 // Crash twice.
88 //
89 // Second crash should, given an error file Without %p,
90 // overwrite the first file. With %p it should not.
91
92 String errorFileStem = "hs_err_pid_test";
93 String errorFileName = errorFileStem + (with_percent_p ? "%p" : "") + ".log";
94
95 System.out.println("Testing with error file name " + errorFileName + "...");
96
97 System.out.println("First crash...");
98
99 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
100 "-Xmx64M",
101 "-XX:-CreateCoredumpOnCrash",
102 "-XX:ErrorHandlerTest=1",
103 "-XX:ErrorFile=" + errorFileName,
104 "-version");
105
106 OutputAnalyzer output_detail = new OutputAnalyzer(pb.start());
107
108 output_detail.shouldMatch("# A fatal error has been detected by the Java Runtime Environment:.*");
109 output_detail.shouldMatch("# An error report file with more information is saved as:.*");
110 output_detail.shouldMatch("# " + errorFileStem + ".*");
111 System.out.println("First crash: Found expected output on tty. Ok.");
112
113 File f = findHsErrorFileInOutput(output_detail);
114 System.out.println("First crash: Found hs error file at " + f.getAbsolutePath());
115
116 scanHsErrorFileForContent(f, new Pattern[] {
117 Pattern.compile("# *Internal Error.*"),
118 Pattern.compile("Command Line:.*-XX:ErrorHandlerTest=1.*-XX:ErrorFile=" + errorFileStem + ".*")
119 });
120 System.out.println("First crash: hs error content as expected. Ok.");
121
122
123 System.out.println("Second crash...");
124
125 pb = ProcessTools.createJavaProcessBuilder(
126 "-Xmx64M",
127 "-XX:-CreateCoredumpOnCrash",
128 "-XX:ErrorHandlerTest=2", // << now 2
129 "-XX:ErrorFile=" + errorFileName,
130 "-version");
131
132 output_detail = new OutputAnalyzer(pb.start());
133
134 output_detail.shouldMatch("# A fatal error has been detected by the Java Runtime Environment:.*");
135 output_detail.shouldMatch("# An error report file with more information is saved as:.*");
136 output_detail.shouldMatch("# " + errorFileStem + ".*");
137 System.out.println("Second crash: Found expected output on tty. Ok.");
138
139 File f2 = findHsErrorFileInOutput(output_detail);
140 System.out.println("Second crash: Found hs error file at " + f2.getAbsolutePath());
141
142 if (with_percent_p) {
143 if (f2.getAbsolutePath() == f.getAbsolutePath()) {
144 throw new RuntimeException("Unexpected overwriting of error file");
145 }
146 }
147
148 scanHsErrorFileForContent(f2, new Pattern[] {
149 Pattern.compile("# *Internal Error.*"),
150 Pattern.compile("Command Line:.*-XX:ErrorHandlerTest=2.*-XX:ErrorFile=" + errorFileStem + ".*")
151 });
152 System.out.println("Second crash: hs error content as expected. Ok.");
153
154 }
155
156 public static void main(String[] args) throws Exception {
157 do_test(false);
158 do_test(true);
159 }
160
161 }
162
163