Indicates how long annotations with the annotated type are to
be retained. If no Retention annotation is present on
an annotation type declaration, the retention policy defaults to
RetentionPolicy.CLASS .
A Retention meta-annotation has effect only if the
meta-annotated type is used directly for annotation. It has no
effect if the meta-annotated type is used as a member type in
another annotation type.
A Retention meta-annotation has effect only if the meta-annotated type is used directly for annotation. It has no effect if the meta-annotated type is used as a member type in another annotation type.