1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/serviceability/sa/jmap-hprof/JMapHProfLargeHeapTest.java Fri Oct 04 13:44:49 2013 +0200
1.3 @@ -0,0 +1,146 @@
1.4 +/*
1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +import java.io.BufferedReader;
1.28 +import java.io.File;
1.29 +import java.io.FileNotFoundException;
1.30 +import java.io.FileReader;
1.31 +import java.io.IOException;
1.32 +import java.io.Reader;
1.33 +import java.nio.CharBuffer;
1.34 +import java.util.Arrays;
1.35 +import java.util.Scanner;
1.36 +
1.37 +import com.oracle.java.testlibrary.Asserts;
1.38 +import com.oracle.java.testlibrary.JDKToolFinder;
1.39 +import com.oracle.java.testlibrary.JDKToolLauncher;
1.40 +import com.oracle.java.testlibrary.OutputAnalyzer;
1.41 +import com.oracle.java.testlibrary.Platform;
1.42 +import com.oracle.java.testlibrary.ProcessTools;
1.43 +
1.44 +/*
1.45 + * @test
1.46 + * @bug 6313383
1.47 + * @key regression
1.48 + * @summary Regression test for hprof export issue due to large heaps (>2G)
1.49 + * @library /testlibrary
1.50 + * @compile JMapHProfLargeHeapProc.java
1.51 + * @run main JMapHProfLargeHeapTest
1.52 + */
1.53 +
1.54 +public class JMapHProfLargeHeapTest {
1.55 + private static final String HEAP_DUMP_FILE_NAME = "heap.hprof";
1.56 + private static final String HPROF_HEADER_1_0_1 = "JAVA PROFILE 1.0.1";
1.57 + private static final String HPROF_HEADER_1_0_2 = "JAVA PROFILE 1.0.2";
1.58 + private static final long M = 1024L;
1.59 + private static final long G = 1024L * M;
1.60 +
1.61 + public static void main(String[] args) throws Exception {
1.62 + // If we are on MacOSX, test if JMap tool is signed, otherwise return
1.63 + // since test will fail with privilege error.
1.64 + if (Platform.isOSX()) {
1.65 + String jmapToolPath = JDKToolFinder.getCurrentJDKTool("jmap");
1.66 + ProcessBuilder codesignProcessBuilder = new ProcessBuilder(
1.67 + "codesign", "-v", jmapToolPath);
1.68 + Process codesignProcess = codesignProcessBuilder.start();
1.69 + OutputAnalyzer analyser = new OutputAnalyzer(codesignProcess);
1.70 + try {
1.71 + analyser.shouldNotContain("code object is not signed at all");
1.72 + System.out.println("Signed jmap found at: " + jmapToolPath);
1.73 + } catch (Exception e) {
1.74 + // Abort since we can't know if the test will work
1.75 + System.out
1.76 + .println("Test aborted since we are on MacOSX and the jmap tool is not signed.");
1.77 + return;
1.78 + }
1.79 + }
1.80 +
1.81 + // Small heap 22 megabytes, should create 1.0.1 file format
1.82 + testHProfFileFormat("-Xmx1g", 22 * M, HPROF_HEADER_1_0_1);
1.83 +
1.84 + /**
1.85 + * This test was deliberately commented out since the test system lacks
1.86 + * support to handle the requirements for this kind of heap size in a
1.87 + * good way. If or when it becomes possible to run this kind of tests in
1.88 + * the test environment the test should be enabled again.
1.89 + * */
1.90 + // Large heap 2,2 gigabytes, should create 1.0.2 file format
1.91 + // testHProfFileFormat("-Xmx4g", 2 * G + 2 * M, HPROF_HEADER_1_0_2);
1.92 + }
1.93 +
1.94 + private static void testHProfFileFormat(String vmArgs, long heapSize,
1.95 + String expectedFormat) throws Exception, IOException,
1.96 + InterruptedException, FileNotFoundException {
1.97 + ProcessBuilder procBuilder = ProcessTools.createJavaProcessBuilder(
1.98 + vmArgs, "JMapHProfLargeHeapProc", String.valueOf(heapSize));
1.99 + procBuilder.redirectError(ProcessBuilder.Redirect.INHERIT);
1.100 + Process largeHeapProc = procBuilder.start();
1.101 +
1.102 + try (Scanner largeHeapScanner = new Scanner(
1.103 + largeHeapProc.getInputStream());) {
1.104 + String pidstring = null;
1.105 + while ((pidstring = largeHeapScanner.findInLine("PID\\[[0-9].*\\]")) == null) {
1.106 + Thread.sleep(500);
1.107 + }
1.108 + int pid = Integer.parseInt(pidstring.substring(4,
1.109 + pidstring.length() - 1));
1.110 + System.out.println("Extracted pid: " + pid);
1.111 +
1.112 + JDKToolLauncher jMapLauncher = JDKToolLauncher
1.113 + .create("jmap", false);
1.114 + jMapLauncher.addToolArg("-dump:format=b,file=" + pid + "-"
1.115 + + HEAP_DUMP_FILE_NAME);
1.116 + jMapLauncher.addToolArg(String.valueOf(pid));
1.117 +
1.118 + ProcessBuilder jMapProcessBuilder = new ProcessBuilder(
1.119 + jMapLauncher.getCommand());
1.120 + System.out.println("jmap command: "
1.121 + + Arrays.toString(jMapLauncher.getCommand()));
1.122 +
1.123 + Process jMapProcess = jMapProcessBuilder.start();
1.124 + OutputAnalyzer analyzer = new OutputAnalyzer(jMapProcess);
1.125 + analyzer.shouldHaveExitValue(0);
1.126 + analyzer.shouldContain(pid + "-" + HEAP_DUMP_FILE_NAME);
1.127 + analyzer.shouldContain("Heap dump file created");
1.128 +
1.129 + largeHeapProc.getOutputStream().write('\n');
1.130 +
1.131 + File dumpFile = new File(pid + "-" + HEAP_DUMP_FILE_NAME);
1.132 + Asserts.assertTrue(dumpFile.exists(), "Heap dump file not found.");
1.133 +
1.134 + try (Reader reader = new BufferedReader(new FileReader(dumpFile))) {
1.135 + CharBuffer buf = CharBuffer.allocate(expectedFormat.length());
1.136 + reader.read(buf);
1.137 + buf.clear();
1.138 + Asserts.assertEQ(buf.toString(), expectedFormat,
1.139 + "Wrong file format. Expected '" + expectedFormat
1.140 + + "', but found '" + buf.toString() + "'");
1.141 + }
1.142 +
1.143 + System.out.println("Success!");
1.144 +
1.145 + } finally {
1.146 + largeHeapProc.destroyForcibly();
1.147 + }
1.148 + }
1.149 +}
