src/java.compiler/share/classes/javax/lang/model/util/Elements.java

@@ -449,10 +449,11 @@
 
 
     /**
      * Returns the package of an element.  The package of a package is
      * itself.
+     * The package of a module is {@code null}.
      *
      * @param type the element being examined
      * @return the package of an element
      */
     PackageElement getPackageOf(Element type);