--- old/src/java.compiler/share/classes/javax/lang/model/element/ModuleElement.java	2019-01-07 22:32:34.520000000 -0800
+++ new/src/java.compiler/share/classes/javax/lang/model/element/ModuleElement.java	2019-01-07 22:32:34.328000000 -0800
@@ -317,7 +317,7 @@
 
         /**
          * 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
          */
@@ -339,7 +339,7 @@
 
         /**
          * 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
          */