| /* |
| * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.InputStreamReader; |
| import java.util.regex.Pattern; |
| |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.Platform; |
| import jdk.test.lib.process.ProcessTools; |
| |
| /* |
| * @test |
| * @requires (vm.debug == true) |
| * @bug 8167108 |
| * @summary Nested ThreadsListHandle info should be in error handling output. |
| * @modules java.base/jdk.internal.misc |
| * @library /test/lib |
| * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+EnableThreadSMRStatistics NestedThreadsListHandleInErrorHandlingTest |
| */ |
| |
| /* |
| * This test was created using SafeFetchInErrorHandlingTest.java |
| * as a guide. |
| */ |
| public class NestedThreadsListHandleInErrorHandlingTest { |
| public static void main(String[] args) throws Exception { |
| |
| // The -XX:ErrorHandlerTest=N option requires debug bits. |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| "-XX:+UnlockDiagnosticVMOptions", |
| "-Xmx100M", |
| "-XX:ErrorHandlerTest=17", |
| "-XX:-CreateCoredumpOnCrash", |
| "-version"); |
| |
| OutputAnalyzer output_detail = new OutputAnalyzer(pb.start()); |
| |
| // We should have crashed with a specific fatal error: |
| output_detail.shouldMatch("# A fatal error has been detected by the Java Runtime Environment:.*"); |
| System.out.println("Found fatal error header."); |
| output_detail.shouldMatch("# +fatal error: Force crash with a nested ThreadsListHandle."); |
| System.out.println("Found specific fatal error."); |
| |
| // Extract hs_err_pid file. |
| String hs_err_file = output_detail.firstMatch("# *(\\S*hs_err_pid\\d+\\.log)", 1); |
| if (hs_err_file == null) { |
| throw new RuntimeException("Did not find hs_err_pid file in output.\n"); |
| } |
| |
| File f = new File(hs_err_file); |
| if (!f.exists()) { |
| throw new RuntimeException("hs_err_pid file missing at " |
| + f.getAbsolutePath() + ".\n"); |
| } |
| |
| System.out.println("Found hs_err_pid file. Scanning..."); |
| |
| FileInputStream fis = new FileInputStream(f); |
| BufferedReader br = new BufferedReader(new InputStreamReader(fis)); |
| String line = null; |
| |
| Pattern [] pattern = new Pattern[] { |
| // The "Current thread" line should show a hazard ptr and |
| // a nested hazard ptr: |
| Pattern.compile("Current thread .* _threads_hazard_ptr=0x[0-9A-Fa-f][0-9A-Fa-f]*, _nested_threads_hazard_ptr_cnt=1, _nested_threads_hazard_ptr=0x[0-9A-Fa-f][0-9A-Fa-f]*.*"), |
| // We should have a section of Threads class SMR info: |
| Pattern.compile("Threads class SMR info:"), |
| // We should have one nested ThreadsListHandle: |
| Pattern.compile(".*, _nested_thread_list_max=1"), |
| // The current thread (marked with '=>') in the threads list |
| // should show a hazard ptr and a nested hazard ptr: |
| Pattern.compile("=>.* JavaThread \"main\" .* _threads_hazard_ptr=0x[0-9A-Fa-f][0-9A-Fa-f]*, _nested_threads_hazard_ptr_cnt=1, _nested_threads_hazard_ptr=0x[0-9A-Fa-f][0-9A-Fa-f]*.*"), |
| }; |
| int currentPattern = 0; |
| |
| String lastLine = null; |
| while ((line = br.readLine()) != null) { |
| if (currentPattern < pattern.length) { |
| if (pattern[currentPattern].matcher(line).matches()) { |
| System.out.println("Found: " + line + "."); |
| currentPattern++; |
| } |
| } |
| lastLine = line; |
| } |
| br.close(); |
| |
| if (currentPattern < pattern.length) { |
| throw new RuntimeException("hs_err_pid file incomplete (first missing pattern: " + currentPattern + ")"); |
| } |
| |
| if (!lastLine.equals("END.")) { |
| throw new RuntimeException("hs-err file incomplete (missing END marker.)"); |
| } else { |
| System.out.println("End marker found."); |
| } |
| |
| System.out.println("Done scanning hs_err_pid_file."); |
| System.out.println("PASSED."); |
| } |
| } |