IllegalCatch.md

Pattern: Illegal exception type in catch statement

Issue: -

Description

Checks that certain exception types do not appear in a catch statement.

Rationale: Catching java.lang.Exception, java.lang.Error or java.lang.RuntimeException is almost never acceptable. Novice developers often simply catch Exception in an attempt to handle multiple exception classes. This unfortunately leads to code that inadvertently catches NullPointerException, OutOfMemoryError, etc.

Examples

To configure the check:

<module name="IllegalCatch"/>

Further Reading

• checkstyle - IllegalCatch