When u create an attribute and compile it will creates an interface which u can notice with javap utility. It also allows to implement that interface
actually java.lang.annotation.Annotation is also and inteafec it does't have any thing else.
This will actully raises many questions /concerns

1) Does any class which implements java.lang.annotation.Annotation will become
an attribute, can i use that like way.

2) What happens if any one implements my attribute's interface , how do i need to stop them, now he can implement my methods, its possible he can write his own code i meen executable.

3) If u would like to stop using this way how can u stop implementing an interface.