org.jboss.marshalling._private.GetUnsafeAction Maven / Gradle / Ivy

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2018 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jboss.marshalling._private;

import java.lang.reflect.Field;
import java.security.PrivilegedAction;

import sun.misc.Unsafe;

/**
 */
public class GetUnsafeAction implements PrivilegedAction {
    public static final GetUnsafeAction INSTANCE = new GetUnsafeAction();

    private GetUnsafeAction() {
    }

    public Unsafe run() {
        try {
            Field unsafeField = Unsafe.class.getDeclaredField("theUnsafe");
            unsafeField.setAccessible(true);
            return (Unsafe) unsafeField.get(null);
        } catch (IllegalAccessException | NoSuchFieldException e) {
            throw new Error(e);
        }
    }
}