| /* |
| * Copyright (c) 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. |
| */ |
| |
| /** |
| * @test TestJmapCore |
| * @summary Test verifies that jhsdb jmap could generate heap dump from core when heap is full |
| * @requires vm.hasSA |
| * @library /test/lib |
| * @run driver/timeout=240 TestJmapCore run heap |
| */ |
| |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.JDKToolFinder; |
| import jdk.test.lib.JDKToolLauncher; |
| import jdk.test.lib.Platform; |
| import jdk.test.lib.classloader.GeneratingClassLoader; |
| import jdk.test.lib.hprof.HprofParser; |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jtreg.SkippedException; |
| |
| import java.io.File; |
| |
| public class TestJmapCore { |
| static final String pidSeparator = ":KILLED_PID"; |
| |
| public static final String HEAP_OOME = "heap"; |
| public static final String METASPACE_OOME = "metaspace"; |
| |
| |
| public static void main(String[] args) throws Throwable { |
| if (args.length == 1) { |
| // If 1 argument is set prints pid so main process could find corefile |
| System.out.println(ProcessHandle.current().pid() + pidSeparator); |
| try { |
| if (args[0].equals(HEAP_OOME)) { |
| Object[] oa = new Object[Integer.MAX_VALUE / 2]; |
| for(int i = 0; i < oa.length; i++) { |
| oa[i] = new Object[Integer.MAX_VALUE / 2]; |
| } |
| } else { |
| GeneratingClassLoader loader = new GeneratingClassLoader(); |
| for (int i = 0; ; i++) { |
| loader.loadClass(loader.getClassName(i)); |
| } |
| } |
| throw new Error("OOME not triggered"); |
| } catch (OutOfMemoryError err) { |
| return; |
| } |
| } |
| test(args[1]); |
| } |
| |
| // Test tries to run java with ulimit unlimited if it is possible |
| static boolean useDefaultUlimit() { |
| if (Platform.isWindows()) { |
| return true; |
| } |
| try { |
| OutputAnalyzer output = ProcessTools.executeProcess("sh", "-c", "ulimit -c unlimited && ulimit -c"); |
| return !(output.getExitValue() == 0 && output.getStdout().contains("unlimited")); |
| } catch (Throwable t) { |
| return true; |
| } |
| } |
| |
| static void test(String type) throws Throwable { |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, "-XX:+CreateCoredumpOnCrash", |
| "-Xmx512m", "-XX:MaxMetaspaceSize=64m", "-XX:+CrashOnOutOfMemoryError", "-XX:-TransmitErrorReport", |
| TestJmapCore.class.getName(), type); |
| |
| boolean useDefaultUlimit = useDefaultUlimit(); |
| System.out.println("Run test with ulimit: " + (useDefaultUlimit ? "default" : "unlimited")); |
| OutputAnalyzer output = useDefaultUlimit |
| ? ProcessTools.executeProcess(pb) |
| : ProcessTools.executeProcess("sh", "-c", "ulimit -c unlimited && " |
| + ProcessTools.getCommandLine(pb)); |
| File core; |
| String pattern = Platform.isWindows() ? ".*\\.mdmp" : "core(\\.\\d+)?"; |
| File[] cores = new File(".").listFiles((dir, name) -> name.matches(pattern)); |
| if (cores.length == 0) { |
| // /cores/core.$pid might be generated on macosx by default |
| String pid = output.firstMatch("^(\\d+)" + pidSeparator, 1); |
| core = new File("cores/core." + pid); |
| if (!core.exists()) { |
| throw new SkippedException("Has not been able to find coredump"); |
| } |
| } else { |
| Asserts.assertTrue(cores.length == 1, |
| "There are unexpected files containing core " |
| + ": " + String.join(",", new File(".").list()) + "."); |
| core = cores[0]; |
| } |
| System.out.println("Found corefile: " + core.getAbsolutePath()); |
| |
| File dumpFile = new File("heap.hprof"); |
| JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhsdb"); |
| launcher.addToolArg("jmap"); |
| launcher.addToolArg("--binaryheap"); |
| launcher.addToolArg("--dumpfile=" + dumpFile); |
| launcher.addToolArg("--exe"); |
| launcher.addToolArg(JDKToolFinder.getTestJDKTool("java")); |
| launcher.addToolArg("--core"); |
| launcher.addToolArg(core.getPath()); |
| |
| ProcessBuilder jhsdpb = new ProcessBuilder(); |
| jhsdpb.command(launcher.getCommand()); |
| Process jhsdb = jhsdpb.start(); |
| OutputAnalyzer out = new OutputAnalyzer(jhsdb); |
| |
| jhsdb.waitFor(); |
| |
| System.out.println(out.getStdout()); |
| System.err.println(out.getStderr()); |
| |
| Asserts.assertTrue(dumpFile.exists() && dumpFile.isFile(), |
| "Could not find dump file " + dumpFile.getAbsolutePath()); |
| |
| HprofParser.parse(dumpFile); |
| System.out.println("PASSED"); |
| } |
| } |