HTTP – Content negotiation

With HTTP, resources are identified using URIs. And a uniquely identified resource might support multiple resource representations. A representation is…

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KivaKit XML Streaming

KivaKit XML Streaming   Since Java 1.6 in 2006, Java has had a built-in XML streaming API in the package…

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Get logged-in user info in Jakarta EE – the simplest way

The security before Java EE 8 / Jakarta EE 8 used to be a bit complicated and confusing. Every specification…

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Mockito when-then vs do-when

Writing unit test is very important for better software quality. For unit tests Mockito is one of the most common…

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How to properly inject CDI beans into JAX-RS sub-resources

Jakarta REST (JAX-RS) defines it’s own dependency injection using the @Context annotation. REST resources also support CDI injection if you enable CDI on the…

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Add Grpc to your Spring Application

On the previous example we had a Java application spinning up an http server and upon this Java process operating…

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Using JaCoCo to measure system test coverage

Measuring test coverage of your production code can quickly become a heated topic, especially with regards to which percentage is…

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All You Need To Know About Exception Handling In Selenium

In the world of technology, exceptions are said to be as old as programming itself. Occurrence of an exception during…

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Executing Blocking calls on a Reactor based Application

Project Reactor is a fully non-blocking foundation with back-pressure support included. Although most libraries out there support asynchronous methods thus…

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