object : Handler() {
        val calls = mutableMapOf<String, AtomicInteger>()

        override fun publish(record: LogRecord) {
          calls.getOrPut(record.loggerName) { AtomicInteger(0) }
            .incrementAndGet()
        }

        override fun flush() {
        }

        override fun close() {
        }
      }.apply {
        level = Level.FINEST
      }

    Logger.getLogger("")