Like 8.1.2, section 9.1.2 attempts to prohibit references to type parameters in static contexts:

"It is a compile-time error to refer to a type parameter of an interface I anywhere in the declaration of a field or type member of I."

However, it was not updated to account for static methods in JLS 8. It should say:

"It is a compile-time error to refer to a type parameter of a generic interface I anywhere in the declaration of a static member of I (9.3, 9.4, 9.5)."