src/jdk.compiler/share/classes/com/sun/tools/javac/tree/JCTree.java

@@ -840,10 +840,13 @@
         public JCBlock body;
         /** default value, for annotation types */
         public JCExpression defaultValue;
         /** method symbol */
         public MethodSymbol sym;
+        /** nascent value that evolves into the return value for a value factory */
+        public VarSymbol factoryProduct;
+
         protected JCMethodDecl(JCModifiers mods,
                             Name name,
                             JCExpression restype,
                             List<JCTypeParameter> typarams,
                             JCVariableDecl recvparam,