parquet-common/src/main/java/org/apache/parquet/Log.java
public void debug(Object m) {
    if (m instanceof Throwable) {
      logger.debug("", (Throwable) m);
    } else {
      logger.debug(String.valueOf(m));
    }
  }
public void debug(Object m) {
    if (m instanceof Throwable) {
      logger.debug("", (Throwable) m);
    } else {
      logger.debug(String.valueOf(m));
    }
  }
prints a debug message
@param m a log message