events.add(responseHeaders)
      notifyAll()
      return false
    }

    @Synchronized override fun onData(
      streamId: Int,
      source: BufferedSource,
      byteCount: Int,
      last: Boolean,
    ): Boolean {
      events.add(AssertionError("onData"))
      notifyAll()
      return false
    }

    @Synchronized override fun onReset(
      streamId: Int,