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 import java.io.BufferedReader; 25 import java.io.File; 26 import java.io.FileNotFoundException; 27 import java.io.FileReader; 28 import java.io.IOException; 29 import java.io.Reader; 30 import java.nio.CharBuffer; 31 import java.util.Arrays; 32 import java.util.Scanner; 33 34 import jdk.test.lib.Asserts; 35 import jdk.test.lib.JDKToolFinder; 36 import jdk.test.lib.JDKToolLauncher; 37 import jdk.test.lib.OutputAnalyzer; 38 import jdk.test.lib.Platform; 39 import jdk.test.lib.ProcessTools; 40 41 /* 42 * @test 43 * @bug 6313383 44 * @key regression 45 * @summary Regression test for hprof export issue due to large heaps (>2G) 46 * @library /testlibrary 47 * @modules java.base/sun.misc 48 * java.compiler 49 * java.management/sun.management 50 * jdk.jvmstat/sun.jvmstat.monitor 51 * @build jdk.test.lib.* JMapHProfLargeHeapProc 52 * @run main JMapHProfLargeHeapTest 53 */ 54 55 public class JMapHProfLargeHeapTest { 56 private static final String HEAP_DUMP_FILE_NAME = "heap.hprof"; 57 private static final String HPROF_HEADER_1_0_1 = "JAVA PROFILE 1.0.1"; 58 private static final String HPROF_HEADER_1_0_2 = "JAVA PROFILE 1.0.2"; 59 private static final long M = 1024L; 60 private static final long G = 1024L * M; 61 62 public static void main(String[] args) throws Exception { 63 // If we are on MacOSX, test if JMap tool is signed, otherwise return 64 // since test will fail with privilege error. 65 if (Platform.isOSX()) { 66 String jmapToolPath = JDKToolFinder.getTestJDKTool("jmap"); 67 ProcessBuilder codesignProcessBuilder = new ProcessBuilder( 68 "codesign", "-v", jmapToolPath); 69 Process codesignProcess = codesignProcessBuilder.start(); 70 OutputAnalyzer analyser = new OutputAnalyzer(codesignProcess); 71 try { 72 analyser.shouldNotContain("code object is not signed at all"); 73 System.out.println("Signed jmap found at: " + jmapToolPath); 74 } catch (Exception e) { 75 // Abort since we can't know if the test will work 76 System.out 77 .println("Test aborted since we are on MacOSX and the jmap tool is not signed."); 78 return; 79 } 80 } 81 82 // Small heap 22 megabytes, should create 1.0.1 file format 83 testHProfFileFormat("-Xmx1g", 22 * M, HPROF_HEADER_1_0_1); 84 85 /** 86 * This test was deliberately commented out since the test system lacks 87 * support to handle the requirements for this kind of heap size in a 88 * good way. If or when it becomes possible to run this kind of tests in 89 * the test environment the test should be enabled again. 90 * */ 91 // Large heap 2,2 gigabytes, should create 1.0.2 file format 92 // testHProfFileFormat("-Xmx4g", 2 * G + 2 * M, HPROF_HEADER_1_0_2); 93 } 94 95 private static void testHProfFileFormat(String vmArgs, long heapSize, 96 String expectedFormat) throws Exception, IOException, 97 InterruptedException, FileNotFoundException { 98 ProcessBuilder procBuilder = ProcessTools.createJavaProcessBuilder( 99 vmArgs, "JMapHProfLargeHeapProc", String.valueOf(heapSize)); 100 procBuilder.redirectError(ProcessBuilder.Redirect.INHERIT); 101 Process largeHeapProc = procBuilder.start(); 102 103 try (Scanner largeHeapScanner = new Scanner( 104 largeHeapProc.getInputStream());) { 105 String pidstring = null; 106 while ((pidstring = largeHeapScanner.findInLine("PID\\[[0-9].*\\]")) == null) { 107 Thread.sleep(500); 108 } 109 int pid = Integer.parseInt(pidstring.substring(4, 110 pidstring.length() - 1)); 111 System.out.println("Extracted pid: " + pid); 112 113 JDKToolLauncher jMapLauncher = JDKToolLauncher 114 .createUsingTestJDK("jmap"); 115 jMapLauncher.addToolArg("-dump:format=b,file=" + pid + "-" 116 + HEAP_DUMP_FILE_NAME); 117 jMapLauncher.addToolArg(String.valueOf(pid)); 118 119 ProcessBuilder jMapProcessBuilder = new ProcessBuilder( 120 jMapLauncher.getCommand()); 121 System.out.println("jmap command: " 122 + Arrays.toString(jMapLauncher.getCommand())); 123 124 Process jMapProcess = jMapProcessBuilder.start(); 125 OutputAnalyzer analyzer = new OutputAnalyzer(jMapProcess); 126 analyzer.shouldHaveExitValue(0); 127 analyzer.shouldContain(pid + "-" + HEAP_DUMP_FILE_NAME); 128 analyzer.shouldContain("Heap dump file created"); 129 130 largeHeapProc.getOutputStream().write('\n'); 131 132 File dumpFile = new File(pid + "-" + HEAP_DUMP_FILE_NAME); 133 Asserts.assertTrue(dumpFile.exists(), "Heap dump file not found."); 134 135 try (Reader reader = new BufferedReader(new FileReader(dumpFile))) { 136 CharBuffer buf = CharBuffer.allocate(expectedFormat.length()); 137 reader.read(buf); 138 buf.clear(); 139 Asserts.assertEQ(buf.toString(), expectedFormat, 140 "Wrong file format. Expected '" + expectedFormat 141 + "', but found '" + buf.toString() + "'"); 142 } 143 144 System.out.println("Success!"); 145 146 } finally { 147 largeHeapProc.destroyForcibly(); 148 } 149 } 150 }