Java 16 Annotation ElementType.RECORD_COMPONENT cannot be reflected

Using JDK 16, I declared two annotations:

    @Target({ ElementType.RECORD_COMPONENT})
    @Retention(RetentionPolicy.RUNTIME)
    public @interface A {}

    @Target({ ElementType.FIELD})
    @Retention(RetentionPolicy.RUNTIME)
    public @interface B {}

And I declared a record class like this：

public record User(@A @B long id, String name, int age) {}

Then I use reflection to fetch the annotations of id, which is:

Annotation[] annotations = fields[0].getAnnotations();

But the size of annotations is one and I only got @B, why is that? Thanks