源码：

public enum ColorX {

RED, GREEN, BLUE;

}

编译后再反编译：

public final class ColorX extends Enum

{

    public static ColorX[] values()

    {

        return (ColorX[])$VALUES.clone();

    }

    public static ColorX valueOf(String name)

    {

        return (ColorX)Enum.valueOf(enum01/ColorX, name);

    }

    private ColorX(String s, int i)

    {

        super(s, i);

    }

    public static final ColorX RED;

    public static final ColorX GREEN;

    public static final ColorX BLUE;

    private static final ColorX $VALUES[];

    static 

    {

        RED = new ColorX("RED", 0);

        GREEN = new ColorX("GREEN", 1);

        BLUE = new ColorX("BLUE", 2);

        $VALUES = (new ColorX[] {

            RED, GREEN, BLUE

        });

    }

}