default void postHasUserPermissions(ObserverContext<MasterCoprocessorEnvironment> ctx,
    String userName, List<Permission> permissions) throws IOException {
  }
Called after checking if user has permissions.
@param ctx         the coprocessor instance's environment
@param userName    the user name
@param permissions the permission list
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/MasterObserver.java