In the fourth chapter of Mastering Spring MVC 4 We will allow the user to upload his profile picture.
The file upload component implies handling errors at two levels: I/O exceptions at the controller level and multipart exception (a file too big, for instance) at the container level.
If your curious about this part take a look at this stackoverflow question.
This will give us the opportunity to discuss error handling in Spring MVC and Spring boot.
Can't wait to hear what you think about this chapter!