Why @RefreshScope Returns Stale Data After Refresh and 4 Reliable Fixes

This article explains why Spring Cloud @RefreshScope beans may still return old configuration values after a /actuator/refresh call, analyzes the underlying proxy mechanism, and presents four practical solutions—including ObjectProvider and @ConfigurationProperties—along with pitfalls, validation steps, and performance comparisons.

@RefreshScopeNacosobjectprovider

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Why @RefreshScope Returns Stale Data After Refresh and 4 Reliable Fixes

Spring Full-Stack Practical Cases

Feb 22, 2024 · Backend Development

Spring Dependency Injection Tricks: Optional, Provider, Collections, @Value & @Lazy

This article demonstrates various Spring dependency‑injection techniques—including Optional, ObjectProvider, Provider, arrays, collections, maps, @Value literals and SpEL expressions, as well as @Lazy proxies—showing the code and resulting bean representations for each approach.

@Lazy@ValueProvider

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Spring Dependency Injection Tricks: Optional, Provider, Collections, @Value & @Lazy

Spring Full-Stack Practical Cases

Oct 21, 2023 · Backend Development

Mastering Spring’s ObjectProvider: Flexible Dependency Injection Techniques

Spring’s ObjectProvider interface enhances dependency injection by allowing optional, lazy, and multiple bean retrieval, offering methods like getIfAvailable, orderedStream, and stream, with code examples demonstrating on-demand injection, fetching all implementations, and the underlying mechanism via DependencyObjectProvider in the DefaultListableBeanFactory.

dependency-injectionjavaobjectprovider

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Mastering Spring’s ObjectProvider: Flexible Dependency Injection Techniques