Mercurial > jdk8-mips64-public > hotspot / file revision

 /*

  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  */

 import java.io.BufferedReader;

 import java.io.File;

 import java.io.FileNotFoundException;

 import java.io.FileReader;

 import java.io.IOException;

 import java.io.Reader;

 import java.nio.CharBuffer;

 import java.util.Arrays;

 import java.util.Scanner;

 import com.oracle.java.testlibrary.Asserts;

 import com.oracle.java.testlibrary.JDKToolFinder;

 import com.oracle.java.testlibrary.JDKToolLauncher;

 import com.oracle.java.testlibrary.OutputAnalyzer;

 import com.oracle.java.testlibrary.Platform;

 import com.oracle.java.testlibrary.ProcessTools;

 /*

  * @test

  * @bug 6313383

  * @key regression

  * @summary Regression test for hprof export issue due to large heaps (>2G)

  * @library /testlibrary

  * @compile JMapHProfLargeHeapProc.java

  * @run main JMapHProfLargeHeapTest

  */

 public class JMapHProfLargeHeapTest {

     private static final String HEAP_DUMP_FILE_NAME = "heap.hprof";

     private static final String HPROF_HEADER_1_0_1 = "JAVA PROFILE 1.0.1";

     private static final String HPROF_HEADER_1_0_2 = "JAVA PROFILE 1.0.2";

     private static final long M = 1024L;

     private static final long G = 1024L * M;

     public static void main(String[] args) throws Exception {

         // If we are on MacOSX, test if JMap tool is signed, otherwise return

         // since test will fail with privilege error.

         if (Platform.isOSX()) {

             String jmapToolPath = JDKToolFinder.getCurrentJDKTool("jmap");

             ProcessBuilder codesignProcessBuilder = new ProcessBuilder(

                     "codesign", "-v", jmapToolPath);

             Process codesignProcess = codesignProcessBuilder.start();

             OutputAnalyzer analyser = new OutputAnalyzer(codesignProcess);

             try {

                 analyser.shouldNotContain("code object is not signed at all");

                 System.out.println("Signed jmap found at: " + jmapToolPath);

             } catch (Exception e) {

                 // Abort since we can't know if the test will work

                 System.out

                         .println("Test aborted since we are on MacOSX and the jmap tool is not signed.");

                 return;

             }

         }

         // Small heap 22 megabytes, should create 1.0.1 file format

         testHProfFileFormat("-Xmx1g", 22 * M, HPROF_HEADER_1_0_1);

         /**

          * This test was deliberately commented out since the test system lacks

          * support to handle the requirements for this kind of heap size in a

          * good way. If or when it becomes possible to run this kind of tests in

          * the test environment the test should be enabled again.

          * */

         // Large heap 2,2 gigabytes, should create 1.0.2 file format

         // testHProfFileFormat("-Xmx4g", 2 * G + 2 * M, HPROF_HEADER_1_0_2);

     }

     private static void testHProfFileFormat(String vmArgs, long heapSize,

             String expectedFormat) throws Exception, IOException,

             InterruptedException, FileNotFoundException {

         ProcessBuilder procBuilder = ProcessTools.createJavaProcessBuilder(

                 vmArgs, "JMapHProfLargeHeapProc", String.valueOf(heapSize));

         procBuilder.redirectError(ProcessBuilder.Redirect.INHERIT);

         Process largeHeapProc = procBuilder.start();

         try (Scanner largeHeapScanner = new Scanner(

                 largeHeapProc.getInputStream());) {

             String pidstring = null;

             while ((pidstring = largeHeapScanner.findInLine("PID\\[[0-9].*\\]")) == null) {

                 Thread.sleep(500);

             }

             int pid = Integer.parseInt(pidstring.substring(4,

                     pidstring.length() - 1));

             System.out.println("Extracted pid: " + pid);

             JDKToolLauncher jMapLauncher = JDKToolLauncher

                     .create("jmap", false);

             jMapLauncher.addToolArg("-dump:format=b,file=" + pid + "-"

                     + HEAP_DUMP_FILE_NAME);

             jMapLauncher.addToolArg(String.valueOf(pid));

             ProcessBuilder jMapProcessBuilder = new ProcessBuilder(

                     jMapLauncher.getCommand());

             System.out.println("jmap command: "

                     + Arrays.toString(jMapLauncher.getCommand()));

             Process jMapProcess = jMapProcessBuilder.start();

             OutputAnalyzer analyzer = new OutputAnalyzer(jMapProcess);

             analyzer.shouldHaveExitValue(0);

             analyzer.shouldContain(pid + "-" + HEAP_DUMP_FILE_NAME);

             analyzer.shouldContain("Heap dump file created");

             largeHeapProc.getOutputStream().write('\n');

             File dumpFile = new File(pid + "-" + HEAP_DUMP_FILE_NAME);

             Asserts.assertTrue(dumpFile.exists(), "Heap dump file not found.");

             try (Reader reader = new BufferedReader(new FileReader(dumpFile))) {

                 CharBuffer buf = CharBuffer.allocate(expectedFormat.length());

                 reader.read(buf);

                 buf.clear();

                 Asserts.assertEQ(buf.toString(), expectedFormat,

                         "Wrong file format. Expected '" + expectedFormat

                                 + "', but found '" + buf.toString() + "'");

             }

             System.out.println("Success!");

         } finally {

             largeHeapProc.destroyForcibly();

         }

     }

 }