src/share/classes/com/sun/tools/javac/tree/TreeCopier.java

@@ -404,11 +404,11 @@
     }
 
     public JCTree visitOther(Tree node, P p) {
         JCTree tree = (JCTree) node;
         switch (tree.getTag()) {
-            case JCTree.LETEXPR: {
+            case LETEXPR: {
                 LetExpr t = (LetExpr) node;
                 List<JCVariableDecl> defs = copy(t.defs, p);
                 JCTree expr = copy(t.expr, p);
                 return M.at(t.pos).LetExpr(defs, expr);
             }