--- old/src/java.base/share/classes/java/lang/invoke/TypeDescriptor.java	2018-12-12 11:54:16.446329110 -0500
+++ new/src/java.base/share/classes/java/lang/invoke/TypeDescriptor.java	2018-12-12 11:54:16.134329121 -0500
@@ -61,7 +61,8 @@
         boolean isArray();
 
         /**
-         * Does this field descriptor describe a primitive type?
+         * Does this field descriptor describe a primitive type (including void.)
+         *
          * @return whether this field descriptor describes a primitive type
          */
         boolean isPrimitive();