/*

 * Copyright (c) 2018, 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

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 */

/*

 * @test

 * @summary Verifies the creation and cleaup of entries in the Protection Domain Table

 * @library /test/lib

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

 * @build sun.hotspot.WhiteBox

 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run main CleanProtectionDomain

 */

import java.security.ProtectionDomain;

import jdk.test.lib.compiler.InMemoryJavaCompiler;

import jdk.internal.misc.Unsafe;

import static jdk.test.lib.Asserts.*;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

import sun.hotspot.WhiteBox;

public class CleanProtectionDomain {

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

    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

                                  "-Xlog:protectiondomain+table=debug",

                                  "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED",

                                  "-XX:+UnlockDiagnosticVMOptions",

                                  "-XX:+WhiteBoxAPI",

                                  "-Xbootclasspath/a:.",

                                  Test.class.getName());

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

    output.shouldContain("protection domain added");

    output.shouldContain("protection domain unlinked");

    output.shouldHaveExitValue(0);

  }

  static class Test {

    public static void test() throws Exception {

      TestClassLoader classloader = new TestClassLoader();

      ProtectionDomain pd = new ProtectionDomain(null, null);

      byte klassbuf[] = InMemoryJavaCompiler.compile("TestClass", "class TestClass { }");

    }

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

      WhiteBox wb = WhiteBox.getWhiteBox();

      int removedCountOrig =  wb.protectionDomainRemovedCount();

      int removedCount;

      test();

      // Wait until ServiceThread cleans ProtectionDomain table.

      // When the TestClassLoader is unloaded by GC, at least one

      // ProtectionDomainCacheEntry will be eligible for removal.

      int cnt = 0;

      while (true) {

        if (cnt++ % 30 == 0) {

          System.gc();

        }

        removedCount = wb.resolvedMethodRemovedCount();

        if (removedCountOrig != removedCount) {

          break;

        }

        Thread.sleep(100);

      }

    }

    private static class TestClassLoader extends ClassLoader {

      public TestClassLoader() {

        super();

      }

    }

  }

}