1 /*
2 * Copyright (c) 2013, 2016, 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 * Started failing on 2016.06.24 due to 8160376 on MacOS X so quarantine
47 * it on that platform:
48 * @requires os.family != "mac"
49 * @library /testlibrary
50 * @modules java.base/jdk.internal.misc
51 * java.compiler
52 * java.management/sun.management
53 * jdk.jvmstat/sun.jvmstat.monitor
54 * @build jdk.test.lib.* JMapHProfLargeHeapProc
55 * @run main JMapHProfLargeHeapTest
56 */
57
58 public class JMapHProfLargeHeapTest {
59 private static final String HEAP_DUMP_FILE_NAME = "heap.bin";
60 private static final String HPROF_HEADER_1_0_1 = "JAVA PROFILE 1.0.1";
61 private static final String HPROF_HEADER_1_0_2 = "JAVA PROFILE 1.0.2";
62 private static final long M = 1024L;
63 private static final long G = 1024L * M;
64
65 public static void main(String[] args) throws Exception {
66 if (!Platform.shouldSAAttach()) {
67 System.out.println("SA attach not expected to work - test skipped.");
68 return;
69 }
70
71 // All heap dumps should create 1.0.2 file format
72 // Hotspot internal heapdumper always use HPROF_HEADER_1_0_2 format,
73 // but SA heapdumper still use HPROF_HEADER_1_0_1 for small heaps
74 testHProfFileFormat("-Xmx1g", 22 * M, HPROF_HEADER_1_0_1);
75
76 /**
77 * This test was deliberately commented out since the test system lacks
78 * support to handle the requirements for this kind of heap size in a
79 * good way. If or when it becomes possible to run this kind of tests in
80 * the test environment the test should be enabled again.
81 * */
82 // Large heap 2,2 gigabytes, should create 1.0.2 file format
83 // testHProfFileFormat("-Xmx4g", 2 * G + 2 * M, HPROF_HEADER_1_0_2);
84 }
85
86 private static void testHProfFileFormat(String vmArgs, long heapSize,
87 String expectedFormat) throws Exception, IOException,
88 InterruptedException, FileNotFoundException {
89 ProcessBuilder procBuilder = ProcessTools.createJavaProcessBuilder(
90 "--add-exports=java.management/sun.management=ALL-UNNAMED", vmArgs, "JMapHProfLargeHeapProc", String.valueOf(heapSize));
91 procBuilder.redirectError(ProcessBuilder.Redirect.INHERIT);
92 Process largeHeapProc = procBuilder.start();
93
94 try (Scanner largeHeapScanner = new Scanner(
95 largeHeapProc.getInputStream());) {
96 String pidstring = null;
97 while ((pidstring = largeHeapScanner.findInLine("PID\\[[0-9].*\\]")) == null) {
98 Thread.sleep(500);
99 }
100 int pid = Integer.parseInt(pidstring.substring(4,
101 pidstring.length() - 1));
102 System.out.println("Extracted pid: " + pid);
103
104 JDKToolLauncher jMapLauncher = JDKToolLauncher
105 .createUsingTestJDK("jhsdb");
106 jMapLauncher.addToolArg("jmap");
107 jMapLauncher.addToolArg("--binaryheap");
108 jMapLauncher.addToolArg("--pid");
109 jMapLauncher.addToolArg(String.valueOf(pid));
110
111 ProcessBuilder jMapProcessBuilder = new ProcessBuilder(
112 jMapLauncher.getCommand());
113 System.out.println("jmap command: "
114 + Arrays.toString(jMapLauncher.getCommand()));
115
116 Process jMapProcess = jMapProcessBuilder.start();
117 OutputAnalyzer analyzer = new OutputAnalyzer(jMapProcess);
118 analyzer.shouldHaveExitValue(0);
119 analyzer.shouldContain(HEAP_DUMP_FILE_NAME);
120
121 largeHeapProc.getOutputStream().write('\n');
122
123 File dumpFile = new File(HEAP_DUMP_FILE_NAME);
124 Asserts.assertTrue(dumpFile.exists(), "Heap dump file not found.");
125
126 try (Reader reader = new BufferedReader(new FileReader(dumpFile))) {
127 CharBuffer buf = CharBuffer.allocate(expectedFormat.length());
128 reader.read(buf);
129 buf.clear();
130 Asserts.assertEQ(buf.toString(), expectedFormat,
131 "Wrong file format. Expected '" + expectedFormat
132 + "', but found '" + buf.toString() + "'");
133 }
134
135 System.out.println("Success!");
136
137 } finally {
138 largeHeapProc.destroyForcibly();
139 }
140 }
141 }