code: protected long getBufferedConnectionShutdownTimeout(Dsn dsn) {
          return Util.parseLong(Lookup.lookup(BUFFER_SHUTDOWN_TIMEOUT_OPTION, dsn), BUFFER_SHUTDOWN_TIMEOUT_DEFAULT);
      }
docs: Maximum time to wait for {@link BufferedConnection} shutdown when closed, in milliseconds.
  
  @param dsn Sentry server DSN which may contain options.
  @return Maximum time to wait for {@link BufferedConnection} shutdown when closed, in milliseconds.