aoqi@0: /*
aoqi@0:  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: import java.io.BufferedReader;
aoqi@0: import java.io.File;
aoqi@0: import java.io.FileNotFoundException;
aoqi@0: import java.io.FileReader;
aoqi@0: import java.io.IOException;
aoqi@0: import java.io.Reader;
aoqi@0: import java.nio.CharBuffer;
aoqi@0: import java.util.Arrays;
aoqi@0: import java.util.Scanner;
aoqi@0: 
aoqi@0: import com.oracle.java.testlibrary.Asserts;
aoqi@0: import com.oracle.java.testlibrary.JDKToolFinder;
aoqi@0: import com.oracle.java.testlibrary.JDKToolLauncher;
aoqi@0: import com.oracle.java.testlibrary.OutputAnalyzer;
aoqi@0: import com.oracle.java.testlibrary.Platform;
aoqi@0: import com.oracle.java.testlibrary.ProcessTools;
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test
aoqi@0:  * @bug 6313383
aoqi@0:  * @key regression
aoqi@0:  * @summary Regression test for hprof export issue due to large heaps (>2G)
aoqi@0:  * @library /testlibrary
aoqi@0:  * @build com.oracle.java.testlibrary.* JMapHProfLargeHeapProc
aoqi@0:  * @run main JMapHProfLargeHeapTest
aoqi@0:  */
aoqi@0: 
aoqi@0: public class JMapHProfLargeHeapTest {
aoqi@0:     private static final String HEAP_DUMP_FILE_NAME = "heap.hprof";
aoqi@0:     private static final String HPROF_HEADER_1_0_1 = "JAVA PROFILE 1.0.1";
aoqi@0:     private static final String HPROF_HEADER_1_0_2 = "JAVA PROFILE 1.0.2";
aoqi@0:     private static final long M = 1024L;
aoqi@0:     private static final long G = 1024L * M;
aoqi@0: 
aoqi@0:     public static void main(String[] args) throws Exception {
aoqi@0:         // If we are on MacOSX, test if JMap tool is signed, otherwise return
aoqi@0:         // since test will fail with privilege error.
aoqi@0:         if (Platform.isOSX()) {
aoqi@0:             String jmapToolPath = JDKToolFinder.getTestJDKTool("jmap");
aoqi@0:             ProcessBuilder codesignProcessBuilder = new ProcessBuilder(
aoqi@0:                     "codesign", "-v", jmapToolPath);
aoqi@0:             Process codesignProcess = codesignProcessBuilder.start();
aoqi@0:             OutputAnalyzer analyser = new OutputAnalyzer(codesignProcess);
aoqi@0:             try {
aoqi@0:                 analyser.shouldNotContain("code object is not signed at all");
aoqi@0:                 System.out.println("Signed jmap found at: " + jmapToolPath);
aoqi@0:             } catch (Exception e) {
aoqi@0:                 // Abort since we can't know if the test will work
aoqi@0:                 System.out
aoqi@0:                         .println("Test aborted since we are on MacOSX and the jmap tool is not signed.");
aoqi@0:                 return;
aoqi@0:             }
aoqi@0:         }
aoqi@0: 
aoqi@0:         // Small heap 22 megabytes, should create 1.0.1 file format
aoqi@0:         testHProfFileFormat("-Xmx1g", 22 * M, HPROF_HEADER_1_0_1);
aoqi@0: 
aoqi@0:         /**
aoqi@0:          * This test was deliberately commented out since the test system lacks
aoqi@0:          * support to handle the requirements for this kind of heap size in a
aoqi@0:          * good way. If or when it becomes possible to run this kind of tests in
aoqi@0:          * the test environment the test should be enabled again.
aoqi@0:          * */
aoqi@0:         // Large heap 2,2 gigabytes, should create 1.0.2 file format
aoqi@0:         // testHProfFileFormat("-Xmx4g", 2 * G + 2 * M, HPROF_HEADER_1_0_2);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private static void testHProfFileFormat(String vmArgs, long heapSize,
aoqi@0:             String expectedFormat) throws Exception, IOException,
aoqi@0:             InterruptedException, FileNotFoundException {
aoqi@0:         ProcessBuilder procBuilder = ProcessTools.createJavaProcessBuilder(
aoqi@0:                 vmArgs, "JMapHProfLargeHeapProc", String.valueOf(heapSize));
aoqi@0:         procBuilder.redirectError(ProcessBuilder.Redirect.INHERIT);
aoqi@0:         Process largeHeapProc = procBuilder.start();
aoqi@0: 
aoqi@0:         try (Scanner largeHeapScanner = new Scanner(
aoqi@0:                 largeHeapProc.getInputStream());) {
aoqi@0:             String pidstring = null;
aoqi@0:             while ((pidstring = largeHeapScanner.findInLine("PID\\[[0-9].*\\]")) == null) {
aoqi@0:                 Thread.sleep(500);
aoqi@0:             }
aoqi@0:             int pid = Integer.parseInt(pidstring.substring(4,
aoqi@0:                     pidstring.length() - 1));
aoqi@0:             System.out.println("Extracted pid: " + pid);
aoqi@0: 
aoqi@0:             JDKToolLauncher jMapLauncher = JDKToolLauncher
aoqi@0:                     .createUsingTestJDK("jmap");
aoqi@0:             jMapLauncher.addToolArg("-dump:format=b,file=" + pid + "-"
aoqi@0:                     + HEAP_DUMP_FILE_NAME);
aoqi@0:             jMapLauncher.addToolArg(String.valueOf(pid));
aoqi@0: 
aoqi@0:             ProcessBuilder jMapProcessBuilder = new ProcessBuilder(
aoqi@0:                     jMapLauncher.getCommand());
aoqi@0:             System.out.println("jmap command: "
aoqi@0:                     + Arrays.toString(jMapLauncher.getCommand()));
aoqi@0: 
aoqi@0:             Process jMapProcess = jMapProcessBuilder.start();
aoqi@0:             OutputAnalyzer analyzer = new OutputAnalyzer(jMapProcess);
aoqi@0:             analyzer.shouldHaveExitValue(0);
aoqi@0:             analyzer.shouldContain(pid + "-" + HEAP_DUMP_FILE_NAME);
aoqi@0:             analyzer.shouldContain("Heap dump file created");
aoqi@0: 
aoqi@0:             largeHeapProc.getOutputStream().write('\n');
aoqi@0: 
aoqi@0:             File dumpFile = new File(pid + "-" + HEAP_DUMP_FILE_NAME);
aoqi@0:             Asserts.assertTrue(dumpFile.exists(), "Heap dump file not found.");
aoqi@0: 
aoqi@0:             try (Reader reader = new BufferedReader(new FileReader(dumpFile))) {
aoqi@0:                 CharBuffer buf = CharBuffer.allocate(expectedFormat.length());
aoqi@0:                 reader.read(buf);
aoqi@0:                 buf.clear();
aoqi@0:                 Asserts.assertEQ(buf.toString(), expectedFormat,
aoqi@0:                         "Wrong file format. Expected '" + expectedFormat
aoqi@0:                                 + "', but found '" + buf.toString() + "'");
aoqi@0:             }
aoqi@0: 
aoqi@0:             System.out.println("Success!");
aoqi@0: 
aoqi@0:         } finally {
aoqi@0:             largeHeapProc.destroyForcibly();
aoqi@0:         }
aoqi@0:     }
aoqi@0: }