src/java.base/share/classes/java/lang/reflect/ReflectAccess.java

@@ -157,22 +157,6 @@
 
     @SuppressWarnings("unchecked")
     public <T extends AccessibleObject> T getRoot(T obj) {
         return (T) obj.getRoot();
     }
-
-    /*
-     * With a Field object for C.f of type T, T should have been resolved
-     * and T must be present in ValueType attribute.
-     */
-    public boolean isFlattenable(Field f) {
-        return (f.getModifiers() & Modifier.FLATTENABLE) == Modifier.FLATTENABLE;
-    }
-
-    public boolean isFlatValue(Field f) {
-        return (f.getModifiers() & Modifier.FLATTENED) == Modifier.FLATTENED;
-    }
-
-    public boolean canBeNull(Field f) {
-        return !isFlattenable(f);
-    }
 }