docs: @Override
    public final void setFor(final Method pThing,
      final Class<?> pClass, final String pFieldName) {
      synchronized (this.rapiMethodsMap) {
        Map<String, Method> methMap = this.rapiMethodsMap.get(pClass);
        if (methMap == null) {
          methMap = new HashMap<String, Method>();
          this.rapiMethodsMap.put(pClass, methMap);
        }
        methMap.put(pFieldName, pThing);
      }
    }