DoPrivileged.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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 *
 * 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).
 *
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 * 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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package org.openjdk.bench.java.security;

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;

import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.concurrent.TimeUnit;

/**
 * Benchmark measuring DoPrivileged
 */
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@State(Scope.Thread)
public class DoPrivileged {

    private PrivilegedAction<Integer> privilegedAction;

    @Setup
    public void setup() {
        privilegedAction = () -> 42;
    }

    @SuppressWarnings("removal")
    @Benchmark
    public int test() {
        return AccessController.doPrivileged(privilegedAction);
    }

    @SuppressWarnings("removal")
    @Benchmark
    public int testInline() {
        return AccessController.doPrivileged((PrivilegedAction<Integer>) () -> 42);
    }

}