Java-style enum in C# workaround

EnumExtension.cs

public class EnumFieldAttribute : Attribute
{
    private object value{get; set;}

    public EnumFieldAttribute(object val)
    {
        value = val;
    }

    public T GetValue<T>()
    {
        return (T)value;
    }

}

public static class EnumHandler
{
    public static T GetAttributeOfType<T>(this Enum enumVal) where T : System.Attribute
    {
        var type = enumVal.GetType();
        var memInfo = type.GetMember(enumVal.ToString());
        var attributes = memInfo[0].GetCustomAttributes(typeof(T), false);
        return (attributes.Length > 0) ? (T)attributes[0] : null;
    }

    public static T GetEnumFieldValue<T>(this Enum enumVal)
    {
        return enumVal.GetAttributeOfType<EnumFieldAttribute>().GetValue<T>();
    }
}

Program.cs

class Program
{
    static void Main(string[] args)
    {
        //Displays 8
        Console.WriteLine(Insects.Spider.GetEnumFieldValue<int>());
    }

    //We can store any type of objects into our enum values
    //This time we choose int to represent the number of legs for example
    enum Insects 
    { 
        [EnumField(8)]
        Spider, 
        
        [EnumField(10)]
        Caterpillar, 
        
        [EnumField(6)]
        Grasshoper
    }       
}