diff -r 14e098407bb0 -r ad69fd32778e src/jdk.compiler/share/classes/com/sun/source/tree/SwitchExpressionTree.java
--- a/src/jdk.compiler/share/classes/com/sun/source/tree/SwitchExpressionTree.java	Mon Oct 21 15:11:44 2019 +0200
+++ b/src/jdk.compiler/share/classes/com/sun/source/tree/SwitchExpressionTree.java	Mon Oct 21 15:38:26 2019 +0200
@@ -28,6 +28,14 @@
 import java.util.List;
 
 /**
+ * {@preview Associated with switch expressions, a preview feature of
+ *           the Java language.
+ *
+ *           This interface is associated with <i>switch expressions</i>, a preview
+ *           feature of the Java language. Preview features
+ *           may be removed in a future release, or upgraded to permanent
+ *           features of the Java language.}
+ *
  * A tree node for a {@code switch} expression.
  *
  * For example:
@@ -40,12 +48,8 @@
  * @jls 15.29 Switch Expressions
  *
  * @since 12
- *
- * @deprecated This method is modeling switch expressions,
- * which are part of a preview feature and may be removed
- * if the preview feature is removed.
  */
-@Deprecated(forRemoval=true, since="12")
+@jdk.internal.PreviewFeature(feature=jdk.internal.PreviewFeature.Feature.SWITCH_EXPRESSIONS)
 public interface SwitchExpressionTree extends ExpressionTree {
     /**
      * Returns the expression for the {@code switch} expression.