src/java.instrument/share/classes/java/lang/instrument/ClassFileTransformer.java

*** 227,236 ****
--- 227,237 ----
       *         if the input does not represent a well-formed class file
       * @return a well-formed class file buffer (the result of the transform),
       *         or {@code null} if no transform is performed
       *
       * @since  9
+      * @spec JPMS
       */
      default byte[]
      transform(  Module              module,
                  ClassLoader         loader,
                  String              className,