Learn how to use Lombok’s val and var to define local variables without specifying the type.
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Omitting Getter or Setter in Lombok
Filed under Java
Learn how to skip the generation of individual getters and setters when using Lombok annotations.
Java Weekly, Issue 412
Filed under Weekly Review
Large objects and GC in Java 18, new API in project loom, native images for Spring Boot, AWS MemoryDB, and building an startup!
Set Background Color of a Cell with Apache POI
Filed under Java IO
Learn how to change the cell background color in Excel using Apache POI.
Ignoring Commas in Quotes When Splitting a Comma-separated String
Filed under Java String
Learn various approaches for ignoring commas in quotes when splitting a comma-separated String.
Solving Certificate Store Errors in JVM
In this tutorial, we’ll take a look at common issues we might encounter when issuing SSL requests.
Spring Webflux and @Cacheable Annotation
Filed under Reactive, Spring WebFlux
In this article, we’ll explain how Spring WebFlux interacts with @Cacheable annotation
Assert That a Java Optional Has a Certain Value
Filed under Testing
We may need to write assertions on Optional values. We explore a few ways to do this, both with JUnit assertions and with the AssertJ library.
What Is OncePerRequestFilter?
Filed under Spring Web
Learn how to use the Spring OncePerRequestFilter to ensure your filter code is executed only once for each request.