docs: public void release() {
          // This method is never called by jcl-over-slf4j classes. However,
          // in certain deployment scenarios, in particular if jcl-over-slf4j.jar
          // is
          // in the the web-app class loader and the official commons-logging.jar is
          // deployed in some parent class loader (e.g. commons/lib), then it is
          // possible
          // for the parent class loader to mask the classes shipping in
          // jcl-over-slf4j.jar.
          System.out.println("WARN: The method " + SLF4JLogFactory.class + "#release() was invoked.");
          System.out.println("WARN: Please see http://www.slf4j.org/codes.html#release for an explanation.");
          System.out.flush();
      }