1 /*

     2  * Copyright (c) 2015, 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  */

    23 

    24 /*

    25  * @test

    26  * @bug 8025692

    27  * @modules java.base/jdk.internal.misc

    28  *          java.management

    29  * @library /test/lib

    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.process.ProcessTools;

    37 import jdk.test.lib.process.OutputAnalyzer;

    38 import jdk.test.lib.JDKToolFinder;

    39 

    40 public class PrintTouchedMethods {

    41 

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

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

    44       ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(javaArgs1);

    45 

    46       // UnlockDiagnostic turned off, should fail

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

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

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

    50 

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

    52       pb = ProcessTools.createJavaProcessBuilder(javaArgs2);

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

    54       // check order:

    55       // 1 "# Method::print_touched_methods version 1" is the first in first line

    56       // 2 should contain TestLogMethods.methodA:()V

    57       // 3 should not contain TestLogMethods.methodB:()V

    58       // Repeat above for another run with -Xint

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

    60 

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

    62         throw new Exception("Empty output");

    63       }

    64 

    65       String first = lines.get(0);

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

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

    68       }

    69 

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

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

    72       output.shouldHaveExitValue(0);

    73 

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

    75       pb = ProcessTools.createJavaProcessBuilder(javaArgs3);

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

    77       lines = output.asLines();

    78 

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

    80         throw new Exception("Empty output");

    81       }

    82 

    83       first = lines.get(0);

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

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

    86       }

    87 

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

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

    90       output.shouldHaveExitValue(0);

    91 

    92       String[] javaArgs4 = {"-XX:+UnlockDiagnosticVMOptions", "-Xint", "-XX:+LogTouchedMethods", "-XX:+PrintTouchedMethodsAtExit", "-XX:-TieredCompilation", "TestLogTouchedMethods"};

    93       pb = ProcessTools.createJavaProcessBuilder(javaArgs4);

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

    95       lines = output.asLines();

    96 

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

    98         throw new Exception("Empty output");

    99       }

   100 

   101       first = lines.get(0);

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

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

   104       }

   105 

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

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

   108       output.shouldHaveExitValue(0);

   109 

   110       // Test jcmd PrintTouchedMethods VM.print_touched_methods

   111       String pid = Long.toString(ProcessTools.getProcessId());

   112       pb = new ProcessBuilder();

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

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

   115       try {

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

   117       } catch (RuntimeException e) {

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

   119       }

   120   }

   121 }