required meta-annotations for a qualifier specified differently in spec and API

The specification and the API documentation differ on the required and optional meta-annotations of a qualfiier.

JSR-299, 2.3.2 Defining new qualfier type specifies

@Target(METHOD, FIELD, PARAMETER, TYPE} ("is")
@Retention(RUNTIME) ("is")
@Qualifier, but only optional ("may")

API-Doc of Qualifier specifies

@Qualifier
@Retention(RUNTIME)
@Documented (optional, typical)
@Target optional, but various element types as targets possible

Both agree on Retention only.

As a third source I might have a look at the code and the implemented validity check. I have not so far.

I am a bit fussy about this because a missing @Target of my first custom scope messed up the proxying.