Method add

api/src/main/java/io/grpc/InternalChannelz.java:243–246

(Map<Long, T> map, T object)

  }

  private static <T extends InternalInstrumented<?>> void add(Map<Long, T> map, T object) {
    T prev = map.put(object.getLogId().getId(), object);
    assert prev == null;
  }

  private static <T extends InternalInstrumented<?>> void remove(Map<Long, T> map, T object) {
    T prev = map.remove(id(object));