--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/code/Lint.java	Wed Dec 14 20:23:26 2016 +0000
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/code/Lint.java	Fri Dec 16 05:47:58 2016 +0000
@@ -118,6 +118,7 @@
             if (source.compareTo(Source.JDK1_9) >= 0) {
                 values.add(LintCategory.DEP_ANN);
             }
+            values.add(LintCategory.MODULE);
             values.add(LintCategory.REMOVAL);
         }
 
@@ -205,6 +206,11 @@
         FINALLY("finally"),
 
         /**
+         * Warn about module system related issues.
+         */
+        MODULE("module"),
+
+        /**
          * Warn about issues relating to use of command line options
          */
         OPTIONS("options"),