1 /*

     2  * Copyright (c) 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 /*

    25  * @test

    26  * @bug 8025692

    27  * @modules java.base/sun.misc

    28  *          java.management

    29  * @library /testlibrary

    30  * @compile TestLogTouchedMethods.java PrintTouchedMethods.java

    31  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+LogTouchedMethods PrintTouchedMethods

    32  */

    33 

    34 import java.io.File;

    35 import java.util.List;

    36 import jdk.test.lib.*;

    37 

    38 public class PrintTouchedMethods {

    39 

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

    41       String[] javaArgs1 = {"-XX:-UnlockDiagnosticVMOptions", "-XX:+LogTouchedMethods", "-XX:+PrintTouchedMethodsAtExit", "TestLogTouchedMethods"};

    42       ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(javaArgs1);

    43 

    44       // UnlockDiagnostic turned off, should fail

    45       OutputAnalyzer output = new OutputAnalyzer(pb.start());

    46       output.shouldContain("Error: VM option 'LogTouchedMethods' is diagnostic and must be enabled via -XX:+UnlockDiagnosticVMOptions.");

    47       output.shouldContain("Error: Could not create the Java Virtual Machine.");

    48 

    49       String[] javaArgs2 = {"-XX:+UnlockDiagnosticVMOptions", "-XX:+LogTouchedMethods", "-XX:+PrintTouchedMethodsAtExit", "TestLogTouchedMethods"};

    50       pb = ProcessTools.createJavaProcessBuilder(javaArgs2);

    51       output = new OutputAnalyzer(pb.start());

    52       // check order:

    53       // 1 "# Method::print_touched_methods version 1" is the first in first line

    54       // 2 should contain TestLogMethods.methodA:()V

    55       // 3 should not contain TestLogMethods.methodB:()V

    56       // Repeat above for another run with -Xint

    57       List<String> lines = output.asLines();

    58 

    59       if (lines.size() < 1) {

    60         throw new Exception("Empty output");

    61       }

    62 

    63       String first = lines.get(0);

    64       if (!first.equals("# Method::print_touched_methods version 1")) {

    65         throw new Exception("First line mismatch");

    66       }

    67 

    68       output.shouldContain("TestLogTouchedMethods.methodA:()V");

    69       output.shouldNotContain("TestLogTouchedMethods.methodB:()V");

    70       output.shouldHaveExitValue(0);

    71 

    72       String[] javaArgs3 = {"-XX:+UnlockDiagnosticVMOptions", "-Xint", "-XX:+LogTouchedMethods", "-XX:+PrintTouchedMethodsAtExit", "TestLogTouchedMethods"};

    73       pb = ProcessTools.createJavaProcessBuilder(javaArgs3);

    74       output = new OutputAnalyzer(pb.start());

    75       lines = output.asLines();

    76 

    77       if (lines.size() < 1) {

    78         throw new Exception("Empty output");

    79       }

    80 

    81       first = lines.get(0);

    82       if (!first.equals("# Method::print_touched_methods version 1")) {

    83         throw new Exception("First line mismatch");

    84       }

    85 

    86       output.shouldContain("TestLogTouchedMethods.methodA:()V");

    87       output.shouldNotContain("TestLogTouchedMethods.methodB:()V");

    88       output.shouldHaveExitValue(0);

    89 

    90       // Test jcmd PrintTouchedMethods VM.print_touched_methods

    91       String pid = Integer.toString(ProcessTools.getProcessId());

    92       pb = new ProcessBuilder();

    93       pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.print_touched_methods"});

    94       output = new OutputAnalyzer(pb.start());

    95       try {

    96         output.shouldContain("PrintTouchedMethods.main:([Ljava/lang/String;)V");

    97       } catch (RuntimeException e) {

    98         output.shouldContain("Unknown diagnostic command");

    99       }

   100   }

   101 }