public synchronized void config(String sourceClass, String sourceMethod, String msg) {
    LogRecord record = new LogRecord(Level.CONFIG, msg);
    record.setSourceClassName(sourceClass);
    record.setSourceMethodName(sourceMethod);
    log(record);
  }
Log a CONFIG message, specifying source class and method.
geode-core/src/test/java/org/apache/persistence/logging/Logger.java