Introspector.java 文件源码

public static Property getProperty(Field field, Object object) {
    // access also protected and private fields
    field.setAccessible(true);

    // Properties are only primitive types marked by Prop annotation
    if (field.isAnnotationPresent(JProp.class)) {
        // We require that class of the field to be loaded, because we often specify
        // the PropertyEditor there in static block.
        forceInitialization(field.getType());

        //TODO this condition should be used on client when deciding whether to show an editor for it
        if (PropertyEditorManager.findEditor(field.getType()) != null) {
            // add the property
            return new JavaProperty(object, field);
        }
    }
    return null;
}