Spring postconstruct not executing. 5 does not fully conform to the contract defined by the jakarta. 9 fails to process @PostConstruct as the annotation class is not on the classpath. Why the Change? Jan 8, 2026 · Spring calls the methods annotated with @PostConstruct only once, just after the initialization of bean properties. Mar 30, 2024 · This application has a dependency in its pom. Jan 5, 2026 · Learn why @PostConstruct is not called in Spring Boot, real causes, lifecycle pitfalls, and proven fixes with practical examples. 0. 1. Keep in mind that these methods will run even if there’s nothing to initialize. Learn why the `@ PostConstruct` method in your Spring service isn't executing during unit tests and how to fix it with clear, step-by-step instructions. If you think it should behave differently, please open a Spring Framework issue. Why is it not invoked during maven tests and how do I fix this? My t The @PostConstruct annotation in Spring is a vital lifecycle callback that allows you to execute code after bean initialization but before the bean is put into service. The annotation specification dictates that the annotated method MUST run before the service being injected into context or translated into a service. annotation-api-2. PostConstruct and jakarta. ". Using @PostConstruct and @PreDestroy The CommonAnnotationBeanPostProcessor not only recognizes the @Resource annotation but also the JSR-250 lifecycle annotations: jakarta. The Javadoc of the annotation says: "Only one method in a given class can be annotated with this annotation. . The problem (or similar) is described here and here. PostConstruct The problem is my spring boot 3 application running in java 17 never executes the function marked with @PostConstruct in the May 15, 2023 · I think spring-framework 6. Spring supports the PostConstruct lifecycle hook allowing to perform extra post-initialization actions once a bean has been initialized Dec 8, 2025 · In Spring, the `@PostConstruct` annotation is a powerful tool for executing logic immediately after a bean is initialized and all dependency injections are complete. Feb 6, 2018 · Due to the new module system in Java9 SpringBoot-1. Explore how to troubleshoot issues with the @PostConstruct annotation not being called in a Spring Boot @Component and ensure proper execution. Is it possible to achieve this somehow? The @PostConstruct annotation is a key feature in Java that signifies a method should be executed after dependency injection is complete. Oct 15, 2025 · In this article, I walk you through why you may want to stop using @PostConstruct / @PreDestroy, and what you should use instead in your Spring Boot 3+ apps. annotation. Sep 14, 2021 · The PostConstruct annotation is part of JSR 330 (Dependency Injection) and is not a Spring custom annotation. If `@PostConstruct Aug 4, 2018 · The problem is that the @PostConstruct method is not invoked during maven tests, but works fine if I run these tests in IDEA. This article explains how they work and when to use which. Jul 23, 2025 · Explore @PostConstruct and @PreDestroy annotations in Spring with examples, understanding their usage for initializing and destroying beans effectively in Java applications. PostConstruct annotation (from jakarta. 5. Its primary purpose is to perform any initialization tasks before the bean becomes available for use. May 13, 2023 · I think spring-boot 3. In this article we look at various ways to achieve this goal in a Spring application. However, this lifecycle callback can become problematic during **unit testing**. Dec 2, 2019 · Spring Boot offers many different solutions to run code at application startup. May 11, 2024 · Running logic at application startup is a common scenario. PreDestroy. This guide explores these scenarios, their causes, and solutions to Dec 8, 2020 · You create an object manually using new keyword, @PostConstruct method is called by Spring DI containeron components managed by Spring so it will not work on objects created manually. 7 does not fully conform to the contract defined by the jakarta. 3 days ago · Both of them have @PostConstruct methods and basically here is my use case -> i want the @Configuration's @PostConstruct to run before @Component's @PostConstruct. ---more May 13, 2023 · Support for @PostConstruct is a Spring Framework feature. Common use cases include initializing caches, establishing database connections, or fetching configuration from external services. However, there are several scenarios where @PostConstruct may not be called as expected. xml which is an application written in java 8 The java 8 dependency application uses the PostConstruct annotation from below import import javax. jar). yzy vyh ytv jpe kzy siq cgf mtk dpn hdx nyr ihb fvl xvp ghh