java - Representation of inner source-retained annotation -

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we have class:

public class myclass {     @retention(retentionpolicy.source)     private @interface myinterface { }      @myinterface     public void hello() { } }

as can see, has inner, source-only annotation. question is: should exported binary (jar) contain myclass$myinterface.class file or not? if @ retention, can not, because annotation should discarded compiler. still added list of inner classes in myclass.class, , myclass$myinterface.class file created.

when run an annotation processor against class

public class myprocessedclass extends myclass {}

the annotation processing fails if call

myclass.getenclosedelements()

and myclass$myinterface.class not present. processing ok, if myclass$myinterface.class present.

(original problem)

my question is: should exported binary (jar) contain myclass$myinterface.class file or not?

it should.

13.1. form of binary:

  1. every class must contain symbolic references of member types, , local , anonymous classes appear in methods, constructors, static initializers, instance initializers, , field initializers.

4.7.6. innerclasses attribute:

if class or interface has members classes or interfaces, constant_pool table (and hence innerclasses attribute) must refer each such member, if member not otherwise mentioned class.

so myclass must have reference myinterface. , although don't have citation this, seem if there references particular class, class should compiled.


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