public void log(int level, String message, Throwable thrown) {
    if (isLoggable(level)) {
      put(level, message, thrown);
    }
  }
Log a message, with associated Throwable information. If the logger is currently enabled for
the given message level then the given message is logged.

@param level One of the message level identifiers, e.g. SEVERE
@param message The string message
@param thrown - Throwable associated with log message.
geode-core/src/main/java/org/apache/geode/internal/logging/LogWriterImpl.java