在module1中加载一个类，其名称与module2中的类相同

I have a Flex application that can load modules as necessary. When the first module is loaded, it creates a class MyBackground(), which paints the background red. When I choose to load a second module (and unload the first) I again load a class MyBackground (from the second module). However, when I step into the constructor for MyBackground, it goes straight into the constructor for the UIComponentDescriptor:I have a Flex application that can load modules