Entering more than 255 characters in the application title throws IllegalPropertyException on screen

Entering more than 255 characters in the application title throws IllegalPropertyException on screen.

Steps to Reproduce:
1. As an admin navigate to System -> General Configuration.
2. Edit the Application Title and enter more than 255 characters and Save.

Exception thrown on screen.

It is expected that there is a error message on the screen indicating that the application title can not be more than 255 characters long.

Stack Trace here -> https://paste.atlassian.com/view/8688