seniorSpring
What is Spring Boot asynchronous execution model?
Updated May 17, 2026
Short answer
Spring uses @Async and TaskExecutor to run methods asynchronously in separate threads.
Deep explanation
When @Async is enabled, Spring proxies the bean and submits method execution to a thread pool. This decouples request thread from long-running tasks. Proper thread pool configuration is necessary to avoid resource exhaustion.
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