Running code on Spring Boot startup

Spring Boot does a lot of configuration automatically for us but sooner or later you’ll have to do some custom…

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Java optional parameters

When you design a method in a Java class, some parameters may be optional for its execution. No matter it…

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HTTP cache with Spring examples

Caching is a powerful feature of the HTTP protocol but for some reason, it’s mainly considered for static resources like…

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@ParameterizedTest with null values in @CvsSource

Writing parameterized tests in JUnit 4 was pretty cumbersome. JUnit 5 introduced several useful improvements to the framework and running…

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How to bind @RequestParam to object in Spring

Do you have multiple parameters annotated with @RequestParam in a request mapping method and feel it isn’t readable? The annotation…

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Feature toggle in Spring Boot 2

Whether you like it or not, software development is a collaborative activity. Integration work has always been demonized and treated…

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Spring @Lazy annotation use cases

The Spring framework with almost no effort can solve for you many common programming problems, but some of its features…

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Why developers don’t use TDD

Although the total number of acronyms in the programing industry has probably already exceeded the number of stars observable on…

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Spring Cloud – Basic setup

Spring Cloud solves common problems of distributed systems. However, for someone who works only with widely known monolith applications jumping…

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