Example:

    enum FooBar
    {
        FOO, BAR;        
        public abstract String description();
    }

A hint "implement all abstracts methods" should be shown on the enum constants. Executing the hint would result in 
something like:

    enum FooBar
    {
        FOO
        {
            public final String description()
            {
                throw new UnsupportedOperationException("Not supported yet.");
            }
        },
        
        BAR
        {
            public final String description()
            {
                throw new UnsupportedOperationException("Not supported yet.");
            }
        };
        
        public abstract String description();
    }

Because such a method needs to be implemented by all enum constants, it makes sense to have only one hint for all the 
constants instead of one per constant. Of course an implementation of the respective method should only be generated 
for those constants that do not already have an implementation of that method.