UnsafeTool.java

package com.gmail.woodyc40.common;

import net.tridentsdk.Handler;
import net.tridentsdk.plugin.TridentPlugin;
import net.tridentsdk.util.TridentLogger;
import sun.misc.Unsafe;

import java.lang.reflect.Field;

/**
 * Access to sun.misc.Unsafe
 *
 * @author Pierre C
 */
public final class UnsafeTool {
    /** Unsafe instance */
    private static final Unsafe UNSAFE = hackUnsafe();

    /** Prevent instantiation */
    private UnsafeTool() {
    }

    /**
     * Obtains the instance of unsafe
     *
     * <p>May not exist on certain platforms</p>
     *
     * @return the unsafe instance, if it exists
     */
    private static Unsafe hackUnsafe() {
        try {
            Class<?> c = Class.forName("sun.misc.Unsafe");
            Field field = c.getDeclaredField("theUnsafe");
            field.setAccessible(true);
            return  (Unsafe) field.get(null);
        } catch (ClassNotFoundException | NoSuchFieldException e) {
            TridentLogger.error("Your platform does not support sun.misc.Unsafe");
            Handler.forPlugins().disable(TridentPlugin.instance());
        } catch (IllegalAccessException e) {
            e.printStackTrace();
            Handler.forPlugins().disable(TridentPlugin.instance());
        }

        return null;
    }

    /**
     * Obtains the instance of unsafe
     *
     * @return the instance of unsafe
     */
    public static Unsafe unsafe() {
        return UNSAFE;
    }
}