Why Create Custom Exceptions? It's Not Just About the Name!
· 10 min read
"Why create InvalidCredentialsException extending RuntimeException? Isn't it just to get a descriptive name instead of generic RuntimeException?" No! The name is only a small part. The real power is type-safe error handling - allowing Spring to distinguish between different errors and handle them differently without string parsing. Let's see why custom exceptions are essential, not just fancy naming.