InfoQ Homepage Java Content on InfoQ
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Testing Quarkus Web Applications: Writing Clean Component Tests
In this article, we will learn how to write clean integration tests for Quarkus applications. We will see how we can write simple and clean tests for the following scenarios: a mail client, security with RBAC, testing using containers, and rest clients.
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Testing Quarkus Web Applications: Component & Integration Tests
Quarkus is a full-stack, Kubernetes-native Java framework made for Java virtual machines (JVMs) and native compilation. Instead of reinventing the wheel, Quarkus uses well-known enterprise-grade frameworks backed by standards/specifications and makes them compilable to a binary using Graal VM. This article focuses on using some of the Quarkus testing facilities.
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Virtual Panel: the MicroProfile Influence on Microservices Frameworks
In mid-2016, the MicroProfile initiative was created as a collaboration of vendors to deliver microservices for enterprise Java. InfoQ recently asked the opinion of expert practitioners on how MicroProfile has influenced how developers today are building microservices-based applications, the emergence of new microservices frameworks and reverting back to monolith-based applications development.
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Enhanced Streams Processing with Kotlin’s Sequence Interface
Data structures are an intrinsic part of every programming language, yet Java’s Stream interface lacks vital operations and its complex approach to extensibility gave rise to alternative libraries such as jOOλ and Guava. This article provides an alternative approach that can be easily integrated in any Java project using Kotlin's Sequence interface.
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Java Feature Spotlight: Pattern Matching
Java SE 14 (March 2020) introduced a limited form of pattern matching as a preview feature, which becomes a permanent feature in Java SE 16 (March 2021). The first phase of pattern matching is limited to one kind of pattern (type patterns) and one language construct (instanceof), but this is only the first installment in a longer feature arc.
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Donkey: a Highly-Performant HTTP Stack for Clojure
Donkey is the product of the quest for a highly performant Clojure HTTP stack aimed to scale at the rapid pace of growth we have been experiencing at AppsFlyer, and save us computing costs. In this article, we’ll briefly outline the use-case for a library like Donkey and present our benchmarks. Finally, we will discuss Clojure and immutability, and some of our design decisions.
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InfoQ 2020 Recap, Editor Recommendations, and Best Content of the Year
As 2020 is coming to an end, we created this article listing some of the best posts published this year. This collection was hand-picked by nine InfoQ Editors recommending the greatest posts in their domain. It's a great piece to make sure you don't miss out on some of the InfoQ's best content.
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Java InfoQ Trends Report—September 2020
This article provides a summary of how the InfoQ editorial team currently sees the adoption of technology and emerging trends within the Java space in 2020. We focus on Java the language, as well as related languages like Kotlin and Scala, the Java Virtual Machine (JVM), and Java-based frameworks and utilities.
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Azure + Spring Boot = Serverless - Q&A with Julien Dubois
Microsoft seems to prove over and over again its focus on cloud and the Java ecosystem is the new normal. Even though Java has been amongst the supported languages for Azure functions for some time now, Julien Dubois experimented with Spring Boot and Azure to see what this combination means for Azure serverless computing. InfoQ reached out to him to explore further his experience on this topic.
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Running Axon Server in Docker and Kubernetes
Axon Server is an all-in-one solution for CQRS and ES applications written in Java for the Axon Framework. In Part 2 we continue by looking at the platform we run it on; in particular Docker and Kubernetes.
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The Opportunity in App Modernization
The twin pressures of servicing apps running in production and modernizing them to the cloud are putting stress on development and platform teams. App Modernization needs to scale and be made efficient through documentation, products and frameworks. This article looks at the reasons, and approach, to app modernization.
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Project Helidon Tutorial: Building Microservices with Oracle’s Lightweight Java Framework
Oracle introduced its new open-source framework, Helidon, in September 2018. Originally named Java for Cloud, Helidon is a collection of Java libraries for creating microservices-based applications. Within six months of its introduction, Helidon 1.0 was released in February 2019. The current stable release is Helidon 1.4.4, but Oracle is well on their way to releasing Helidon 2.0.