logback-android/src/main/java/ch/qos/logback/classic/Logger.java
public void callAppenders(ILoggingEvent event) {
    int writes = 0;
    for (Logger l = this; l != null; l = l.parent) {
      writes += l.appendLoopOnAppenders(event);
      if (!l.additive) {
        break;
      }
    }
    // No appenders in hierarchy
    if (writes == 0) {
      loggerContext.noAppenderDefinedWarning(this);
    }
  }
public void callAppenders(ILoggingEvent event) {
    int writes = 0;
    for (Logger l = this; l != null; l = l.parent) {
      writes += l.appendLoopOnAppenders(event);
      if (!l.additive) {
        break;
      }
    }
    // No appenders in hierarchy
    if (writes == 0) {
      loggerContext.noAppenderDefinedWarning(this);
    }
  }
Invoke all the appenders of this logger.

@param event
The event to log