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Jackson Streaming API If you have a few years of experience in the Java ecosystem, and you’re interested in sharing that experience with the community (and getting paid for your work of course), have a look at the “Write for Us” page. Cheers. Eugen 1. Overview In this article, we… Continue Reading jackson-streaming-api
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Make It Easy to Schedule to Reddit 1. Overview In this article, we’re going to continue the case study and add a new feature to the Reddit application, with the goal of making it much simpler to schedule articles. Instead of slowly adding in every article by hand in the… Continue Reading schedule-to-reddit-from-website-feed
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Java Web Weekly, Issue 168 Lots of interesting writeups on Java 9 this week. Here we go… 1. Spring and Java ===== >> Troubleshooting Memory Issues in Java Applications [infoq.com] Fixing memory issues can be challenging. This comprehensive guide will give you an idea where to start looking for when… Continue Reading java-web-weekly-168
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New Features in Java 8 1. Overview In this article, we’ll have a quick look at some of the most interesting new features in Java 8. We’ll talk about: interface default and static methods, method reference and Optional. We have already covered some the features of the Java 8’s release… Continue Reading java-8-new-features
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Difference between <context:annotation-config> vs <context:component-scan> Spring 1. Overview In this tutorial, we’re going to learn about the differences between two major XML configuration elements of Spring: <context:annotation-config> and <context:component-scan>. 2. Bean Definitions As we all know, Spring provides us with two ways to define our beans and dependencies: XML configuration and Java… Continue Reading spring-contextannotation-contextcomponentscan
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Design Strategies for Decoupling Java Modules 1. Overview The Java Platform Module System (JPMS) provides stronger encapsulation, more reliability and better separation of concerns. But all these handy features come at a price. Since modularized applications are built upon a network of modules that depend on other modules to properly… Continue Reading java-modules-decoupling-design-strategies
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Extracting Principal and Authorities using Spring Security OAuth 1. Overview In this tutorial, we’ll illustrate how to create an application that delegates user authentication to a third party, as well as to a custom authorization server, using Spring Boot and Spring Security OAuth. Also, we’ll demonstrate how to extract both Principal and Authorities using Spring’s PrincipalExtractor… Continue Reading spring-security-oauth-principal-authorities-extractor
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A CLI with Spring Shell 1. Overview Simply put, the Spring Shell project provides an interactive shell for processing commands and building a full-featured CLI using the Spring programming model. In this article, we’ll explore its features, key classes, and annotations, and implement several custom commands and customizations. 2. Maven… Continue Reading spring-shell-cli
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Guide to Kotlin Interfaces 1. Overview In this tutorial, we’ll discuss how to define and implement interfaces in Kotlin. We’ll also take a look at how multiple interfaces can be implemented by a class. This can certainly cause conflicts, and we’ll learn the mechanism that Kotlin has to resolve them.… Continue Reading kotlin-interfaces
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Guide to the HyperLogLog Algorithm Algorithms Data 1. Overview The HyperLogLog (HLL) data structure is a probabilistic data structure used to estimate the cardinality of a data set. Suppose that we have millions of users and we want to calculate the number of distinct visits to our web page. A… Continue Reading java-hyperloglog
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