/*

 * Copyright (c) 2015, 2016, 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.

 *

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 */

/*

 * @test

 * @bug 8025692

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

 *          java.management

 * @library /test/lib

 * @compile TestLogTouchedMethods.java PrintTouchedMethods.java

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

 */

import java.io.File;

import java.util.List;

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.JDKToolFinder;

public class PrintTouchedMethods {

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

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

      ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(javaArgs1);

      // UnlockDiagnostic turned off, should fail

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

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

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

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

      pb = ProcessTools.createJavaProcessBuilder(javaArgs2);

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

      // check order:

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

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

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

      // Repeat above for another run with -Xint

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

      if (lines.size() < 1) {

        throw new Exception("Empty output");

      }

      String first = lines.get(0);

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

        throw new Exception("First line mismatch");

      }

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

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

      output.shouldHaveExitValue(0);

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

      pb = ProcessTools.createJavaProcessBuilder(javaArgs3);

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

      lines = output.asLines();

      if (lines.size() < 1) {

        throw new Exception("Empty output");

      }

      first = lines.get(0);

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

        throw new Exception("First line mismatch");

      }

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

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

      output.shouldHaveExitValue(0);

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

      pb = ProcessTools.createJavaProcessBuilder(javaArgs4);

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

      lines = output.asLines();

      if (lines.size() < 1) {

        throw new Exception("Empty output");

      }

      first = lines.get(0);

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

        throw new Exception("First line mismatch");

      }

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

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

      output.shouldHaveExitValue(0);

      // Test jcmd PrintTouchedMethods VM.print_touched_methods

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

      pb = new ProcessBuilder();

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

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

      try {

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

      } catch (RuntimeException e) {

        output.shouldContain("Unknown diagnostic command");

      }

  }

}