code: public static synchronized void redirectPlatformLoggers() {
          if (loggingEnabled || !LoggingSupport.isAvailable()) return;
  
          loggingEnabled = true;
          for (Map.Entry<String, WeakReference<PlatformLogger>> entry : loggers.entrySet()) {
              WeakReference<PlatformLogger> ref = entry.getValue();
              PlatformLogger plog = ref.get();
              if (plog != null) {
                  plog.redirectToJavaLoggerProxy();
              }
          }
      }
docs: Initialize java.util.logging.Logger objects for all platform loggers.
  This method is called from LogManager.readPrimordialConfiguration().