Sat, 07 Nov 2020 10:30:02 +0800
Added tag mips-jdk8u275-b01 for changeset d3b4d62f391f
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 */
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;
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;
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 * @build com.oracle.java.testlibrary.* JMapHProfLargeHeapProc
48 * @run main JMapHProfLargeHeapTest
49 */
51 public class JMapHProfLargeHeapTest {
52 private static final String HEAP_DUMP_FILE_NAME = "heap.hprof";
53 private static final String HPROF_HEADER_1_0_2 = "JAVA PROFILE 1.0.2";
54 private static final long M = 1024L;
55 private static final long G = 1024L * M;
57 public static void main(String[] args) throws Exception {
58 // If we are on MacOSX, test if JMap tool is signed, otherwise return
59 // since test will fail with privilege error.
60 if (Platform.isOSX()) {
61 String jmapToolPath = JDKToolFinder.getTestJDKTool("jmap");
62 ProcessBuilder codesignProcessBuilder = new ProcessBuilder(
63 "codesign", "-v", jmapToolPath);
64 Process codesignProcess = codesignProcessBuilder.start();
65 OutputAnalyzer analyser = new OutputAnalyzer(codesignProcess);
66 try {
67 analyser.shouldNotContain("code object is not signed at all");
68 System.out.println("Signed jmap found at: " + jmapToolPath);
69 } catch (Exception e) {
70 // Abort since we can't know if the test will work
71 System.out
72 .println("Test aborted since we are on MacOSX and the jmap tool is not signed.");
73 return;
74 }
75 }
77 // All heap dumps should create 1.0.2 file format
78 testHProfFileFormat("-Xmx1g", 22 * M, HPROF_HEADER_1_0_2);
80 /**
81 * This test was deliberately commented out since the test system lacks
82 * support to handle the requirements for this kind of heap size in a
83 * good way. If or when it becomes possible to run this kind of tests in
84 * the test environment the test should be enabled again.
85 * */
86 // Large heap 2,2 gigabytes, should create 1.0.2 file format
87 // testHProfFileFormat("-Xmx4g", 2 * G + 2 * M, HPROF_HEADER_1_0_2);
88 }
90 private static void testHProfFileFormat(String vmArgs, long heapSize,
91 String expectedFormat) throws Exception, IOException,
92 InterruptedException, FileNotFoundException {
93 ProcessBuilder procBuilder = ProcessTools.createJavaProcessBuilder(
94 vmArgs, "JMapHProfLargeHeapProc", String.valueOf(heapSize));
95 procBuilder.redirectError(ProcessBuilder.Redirect.INHERIT);
96 Process largeHeapProc = procBuilder.start();
98 try (Scanner largeHeapScanner = new Scanner(
99 largeHeapProc.getInputStream());) {
100 String pidstring = null;
101 while ((pidstring = largeHeapScanner.findInLine("PID\\[[0-9].*\\]")) == null) {
102 Thread.sleep(500);
103 }
104 int pid = Integer.parseInt(pidstring.substring(4,
105 pidstring.length() - 1));
106 System.out.println("Extracted pid: " + pid);
108 JDKToolLauncher jMapLauncher = JDKToolLauncher
109 .createUsingTestJDK("jmap");
110 jMapLauncher.addToolArg("-dump:format=b,file=" + pid + "-"
111 + HEAP_DUMP_FILE_NAME);
112 jMapLauncher.addToolArg(String.valueOf(pid));
114 ProcessBuilder jMapProcessBuilder = new ProcessBuilder(
115 jMapLauncher.getCommand());
116 System.out.println("jmap command: "
117 + Arrays.toString(jMapLauncher.getCommand()));
119 Process jMapProcess = jMapProcessBuilder.start();
120 OutputAnalyzer analyzer = new OutputAnalyzer(jMapProcess);
121 analyzer.shouldHaveExitValue(0);
122 analyzer.shouldContain(pid + "-" + HEAP_DUMP_FILE_NAME);
123 analyzer.shouldContain("Heap dump file created");
125 largeHeapProc.getOutputStream().write('\n');
127 File dumpFile = new File(pid + "-" + HEAP_DUMP_FILE_NAME);
128 Asserts.assertTrue(dumpFile.exists(), "Heap dump file not found.");
130 try (Reader reader = new BufferedReader(new FileReader(dumpFile))) {
131 CharBuffer buf = CharBuffer.allocate(expectedFormat.length());
132 reader.read(buf);
133 buf.clear();
134 Asserts.assertEQ(buf.toString(), expectedFormat,
135 "Wrong file format. Expected '" + expectedFormat
136 + "', but found '" + buf.toString() + "'");
137 }
139 System.out.println("Success!");
141 } finally {
142 largeHeapProc.destroyForcibly();
143 }
144 }
145 }