JDK 14 RFR of JDK-8234917: "Explicitly discuss java.lang.Enum in Class.isEnum spec"

[Joe Darcy]

Hello,

Please review the small doc RFE to address

     JDK-8234917: "Explicitly discuss java.lang.Enum in Class.isEnum spec"

Patch below; thanks,

-Joe

--- a/src/java.base/share/classes/java/lang/Class.java    Wed Nov 27 
06:36:41 2019 -0800
+++ b/src/java.base/share/classes/java/lang/Class.java    Wed Nov 27 
06:53:07 2019 -0800
@@ -3503,7 +3503,9 @@
       * Returns true if and only if this class was declared as an enum 
in the
       * source code.
       *
-     * Note that if an enum constant is declared with a class body,
+     * Note that {@link java.lang.Enum} is not itself an enum type.
+     *
+     * Also note that if an enum constant is declared with a class body,
       * the class of that enum constant object is an anonymous class
       * and <em>not</em> the class of the declaring enum type. The
       * {@link Enum#getDeclaringClass} method of an enum constant can