--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/tree/TreeMaker.java	Mon Nov 11 17:43:10 2019 -0800
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/tree/TreeMaker.java	Tue Nov 12 06:32:13 2019 +0000
@@ -274,7 +274,7 @@
         return tree;
     }
 
-    public JCCase Case(@SuppressWarnings("preview") CaseTree.CaseKind caseKind, List<JCExpression> pats,
+    public JCCase Case(CaseTree.CaseKind caseKind, List<JCExpression> pats,
                        List<JCStatement> stats, JCTree body) {
         JCCase tree = new JCCase(caseKind, pats, stats, body);
         tree.pos = pos;