Java Online Marathon

To-Do List Project

1. Implement exception handling for custom exception.
2. Create "Error" page. Page should contain information about exception (message exception).
3. Create 404 page and 500 page.
4. Implement exception handling with redirection to "Error" page.

On service layer methods

• create and update should throw NullEntityReferenceException when user try to create or update empty object
• find... and delete shoul throw EntityNotFoundException exception when user try to read or delete unexisted object

Submit links to github repository and make short video (2-5 minutes) where demonstrate the functionality as the result of your work!