public void addPropertyCreator(
     AnnotatedWithParams creator, boolean explicit, SettableBeanProperty[] properties) {
   verifyNonDup(creator, C_PROPS, explicit);
   // [JACKSON-470] Better ensure we have no duplicate names either...
   if (properties.length > 1) {
     HashMap<String, Integer> names = new HashMap<String, Integer>();
     for (int i = 0, len = properties.length; i < len; ++i) {
       String name = properties[i].getName();
       /* [Issue-13]: Need to consider Injectables, which may not have
        *   a name at all, and need to be skipped
        */
       if (name.length() == 0 && properties[i].getInjectableValueId() != null) {
         continue;
       }
       Integer old = names.put(name, Integer.valueOf(i));
       if (old != null) {
         throw new IllegalArgumentException(
             "Duplicate creator property \"" + name + "\" (index " + old + " vs " + i + ")");
       }
     }
   }
   _propertyBasedArgs = properties;
 }
 {
   value.put("a", 1);
   value.put("b", 2);
 }