code: @Override
      public Object getMember(String name) {
          switch (name) {
              case "active":
                  return F_active;
              case "get":
                  return F_get;
              case "awaitAnyTermination":
                  return F_awaitAnyTermination;
              case "resetTerminated":
                  return F_resetTerminated;
              case "addListener":
                  return F_addListener;
              case "removeListener":
                  return F_removeListener;
          }
          return super.getMember(name);
      }
docs: get the value of that named property