code: protected final void addDelayedLogMessage(final String logLevel, final String message) {
          this.delayedLogMessages.add(new DelayedLogMessage(logLevel, message));
      }
docs: Adds a log message to be emitted when this AbstractFilter is initialized (and the Log is made available to it).
  
  @param logLevel The logLevel of the message to emit.
  @param message  The message to emit.