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 com.oracle.java.testlibrary.Asserts;
35 import com.oracle.java.testlibrary.JDKToolFinder;
36 import com.oracle.java.testlibrary.JDKToolLauncher;
37 import com.oracle.java.testlibrary.OutputAnalyzer;
38 import com.oracle.java.testlibrary.Platform;
39 import com.oracle.java.testlibrary.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 com.oracle.java.testlibrary.* 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 }