What are common mistakes developers make with runtime retention policies?

Common mistakes developers make with runtime retention policies include:

• Forgetting to define appropriate retention policy, resulting in unintended loss of annotations.
• Using the wrong retention policy for their annotations, such as using `@Retention(RetentionPolicy.CLASS)` for runtime checks.
• Assuming that all annotations can be retained at runtime without proper configuration.
• Not considering dependency injection frameworks which may require certain retention levels.
• Overusing runtime annotations which can lead to performance issues if not managed correctly.

To avoid these pitfalls, developers should ensure they are familiar with the different retention policies and make intentional decisions based on the needs of their application.