src/java.compiler/share/classes/javax/lang/model/element/ModuleElement.java

@@ -315,11 +315,11 @@
          */
         PackageElement getPackage();
 
         /**
          * Returns the specific modules to which the package is being exported,
-         * or null, if the package is exported to all modules which
+         * or {@code null}, if the package is exported to all modules which
          * have readability to this module.
          * @return the specific modules to which the package is being exported
          */
         List<? extends ModuleElement> getTargetModules();
     }

@@ -337,11 +337,11 @@
          */
         PackageElement getPackage();
 
         /**
          * Returns the specific modules to which the package is being open
-         * or null, if the package is open all modules which
+         * or {@code null}, if the package is open all modules which
          * have readability to this module.
          * @return the specific modules to which the package is being opened
          */
         List<? extends ModuleElement> getTargetModules();
     }