diff -r 9948ea5ea1af -r a5557f24b4d4 src/java.compiler/share/classes/javax/lang/model/util/TypeKindVisitor9.java
--- a/src/java.compiler/share/classes/javax/lang/model/util/TypeKindVisitor9.java	Thu Jun 28 19:55:44 2018 +0200
+++ b/src/java.compiler/share/classes/javax/lang/model/util/TypeKindVisitor9.java	Wed Jun 27 21:01:12 2018 -0700
@@ -34,7 +34,7 @@
  * A visitor of types based on their {@linkplain TypeKind kind} with
  * default behavior appropriate for source versions {@link
  * SourceVersion#RELEASE_9 RELEASE_9} through {@link
- * SourceVersion#RELEASE_11 RELEASE_11}.
+ * SourceVersion#RELEASE_12 RELEASE_12}.
  *
  * For {@linkplain
  * TypeMirror types} <code><i>Xyz</i></code> that may have more than one
@@ -77,7 +77,7 @@
  * @see TypeKindVisitor8
  * @since 9
  */
-@SupportedSourceVersion(RELEASE_11)
+@SupportedSourceVersion(RELEASE_12)
 public class TypeKindVisitor9<R, P> extends TypeKindVisitor8<R, P> {
     /**
      * Constructor for concrete subclasses to call; uses {@code null}