Proper Use of the Exception Mechanism

▤ Summary

This article explains how to use exceptions correctly in Java and why exception handling should not replace ordinary control flow. It contrasts try-catch logic with if-else branches and shows how to define custom exceptions that carry useful context. It also recommends handling exceptions at the right layer, such as in REST handlers or boundary code, instead of burying them deep in business logic. The article finishes by discussing throws declarations, Javadoc @throws tags, and when to document or propagate errors rather than catch them immediately.

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