diff -r fc123bdeddb8 -r 25e14ad23cef src/share/classes/com/sun/tools/javadoc/JavadocEnter.java
--- a/src/share/classes/com/sun/tools/javadoc/JavadocEnter.java	Tue Oct 09 19:31:58 2012 -0700
+++ b/src/share/classes/com/sun/tools/javadoc/JavadocEnter.java	Wed Oct 10 16:48:21 2012 -0700
@@ -39,6 +39,12 @@
 /**
  *  Javadoc's own enter phase does a few things above and beyond that
  *  done by javac.
+ *
+ *  <p><b>This is NOT part of any supported API.
+ *  If you write code that depends on this, you do so at your own risk.
+ *  This code and its internal interfaces are subject to change or
+ *  deletion without notice.</b>
+ *
  *  @author Neal Gafter
  */
 public class JavadocEnter extends Enter {