What is Spring Retry and why is it used?

Spring Retry is a framework module that provides declarative and programmatic support for retrying failed operations in Spring-based applications. It is used to automatically re-execute a block of code when a transient failure occurs — such as a network timeout, a temporary database connection drop, or an intermittent third-party API error — without requiring the developer to write manual retry loops.

At its core, Spring Retry intercepts method calls (via AOP when using annotations) and applies a configurable retry policy that defines how many times to retry, how long to wait between attempts, and which exceptions should trigger a retry versus which should be skipped entirely.

The primary motivations for using Spring Retry are:

• Resilience: Transient errors are common in distributed systems. Retry logic prevents a momentary failure from causing a full operation failure.
• Clean code: Instead of embedding try-catch-loop boilerplate, developers declare retry behavior through annotations or simple API calls.
• Configurability: Retry policies, backoff strategies, and recovery handlers can be tuned per method without changing business logic.

Spring Retry integrates naturally with Spring Boot and Spring Batch. It is commonly used when calling REST endpoints, message brokers, or databases that can occasionally be temporarily unavailable.