src/java.base/share/classes/java/net/StandardProtocolFamily.java

*** 39,45 ****
      INET,
  
      /**
       * Internet Protocol Version 6 (IPv6)
       */
!     INET6
  }
--- 39,51 ----
      INET,
  
      /**
       * Internet Protocol Version 6 (IPv6)
       */
!     INET6,
! 
!     /**
!      * Local (Unix domain) interprocess communication.
!      * @since 16
!      */
!     UNIX
  }