RecursiveEnum.java

package javatest;

import com.google.common.base.*;

import java.util.Arrays;

public enum RecursiveEnum
{
    FOO(null),
    BAR(FOO);

    private final RecursiveEnum type;

    RecursiveEnum(RecursiveEnum type)
    {
        this.type = type;
    }

    public RecursiveEnum getType()
    {
        return type;
    }

    @Override
    public String toString()
    {
        return Objects.toStringHelper(this)
                .add("name", name())
                .add("type", type)
                .toString();
    }

    public static void main(String[] args)
    {
        System.out.println(Arrays.toString(RecursiveEnum.values()));
    }
}