INTRODUCTION TO CONCURRENCY AND THREADS IN JAVA WEB APPS

Threads, concurrency, or synchronization are not very easy to understand concepts. When some concurrency is involved in our applications it’s…

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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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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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Possible ways to use Arquillian in Jakarta EE TCKs

Recently, we had a discussion how to create a standalone Jakarta Batch test kit (TCK). For most of the committers,…

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New features between Java 8 and Java 14

Since version 9, Java has new features every 6 months and it’s very hard to keep track of these new…

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Speed Up Services With Reactive API in Java EE 8

Services can often be optimized with asynchronous processing even without changing their behavior towards the outside world. The reason why…

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Configure passwords in Payara Server and GlassFish

Answeriing Stackoverflow questions provides a great feedback for finding out gaps in the official documentation of my favourite opensource tools.…

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So, Oracle killed java.net

Well, not yet…but they announced to shutdown java.net and kenai by May 2017. I have been interviewed about this for…

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JPQL Enhancements in JPA 2.1 and Java EE 7 (part 1 – JOIN ON)

Java EE 7 is around for a few years already, and provides several very useful and long-awaited features, like entity…

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