AccessibleProperty.java 文件源码

@SuppressWarnings("unchecked")
private AttributeConverter<Object, Object> getConverter(AccessibleObject accessible) {
    Convert converter = accessible.getAnnotation(Convert.class);
    if (converter != null) {
        Class<?> converterClass = converter.converter();
        if (!AttributeConverter.class.isAssignableFrom(converterClass)) {
            throw new RuntimeException(
                    "Converter class must be AttributeConverter rather than " + converterClass.getName());
        }
        try {
            Constructor<?> cs = converterClass.getDeclaredConstructor();
            cs.setAccessible(true);
            return (AttributeConverter<Object, Object>) cs.newInstance();
        } catch (InstantiationException | IllegalAccessException | NoSuchMethodException | SecurityException
                | InvocationTargetException e) {
            throw new RuntimeException("Cannot instantiate Converter: " + converterClass.getName(), e);
        }
    }
    return null;
}