Java Articles by

August, 2022

  • 10 August

    Deploy a Multi-Datacenter Apache Cassandra Cluster in Kubernetes (Pt. 1)

    The Get Started examples on the K8ssandra site are primarily concerned with spinning up a single Apache Cassandra datacenter in a single Kubernetes cluster. However, there are many situations that can benefit from other deployment options. In this series of articles, we’ll examine different deployment patterns and show how to implement them using K8ssandra. Flexible topologies with Cassandra From its earliest days, …

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  • 9 August

    Ignore Infrastructure: Concentrate on Code with Jakarta EE and Payara Cloud

    Java EE, now Jakarta EE, makes it possible for developers to focus purely on the development of a Java enterprise application, solving the business logic without needing to think about infrastructure and operations when writing code. Payara Cloud extends this philosophy by also eliminating the need to worry about infrastructure and operations when preparing your application to run in the …

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  • 8 August

    Creating a GraphQL API for Neo4j with Quarkus and SmallRye GraphQL

    In my first article on Foojay, I would like to present one of many possible approaches to create a GraphQL API. I work at Neo4j, so it should not be a big suprise that I will use the Graph database with the same name as a backend for the application. In this post I will cover a couple of things …

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  • 5 August

    External Debugging Tools 1: dtrace and strace

    Often when debugging, we need to step outside of the comforting embrace of the IDE to reproduce or track an issue. In this series, I’d like to go over some tools you might find useful for these cases. I’ll try to limit myself to tools that are 100% debugging tools and not those that are useful for development testing. E.g., …

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  • 4 August

    Foojay Slack:

    Join the community on Slack, here: On Slack, the community discusses articles, insights, tips, tricks, events, and more, all related to users of the OpenJDK, such as Java and Kotlin developers. The post Foojay Slack: appeared first on foojay.

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  • 4 August

    What is a Java Uber-JAR and Why Is It Useful?

    An uber-JAR, also known as a fat JAR or JAR with dependencies, is a JAR file that contains not only a Java program but embeds its dependencies as well, and might also contain the web application that needs to be executed. In this article, we’ll describe the different variants of the artifact and the advantages and drawbacks it has. What …

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  • 3 August

    Getting Started with Deep Learning in Java Using Deep Netts (Part 2)

    Deep Netts is a deep learning development toolkit that enables Java developers to easily add modern AI to their apps. It provides a deep learning IDE and a Java-native deep learning library for embedding AI models into Java apps. In part 1, we looked at the Deep Netts Community Edition, which is capable of solving basic machine learning problems, and …

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  • 2 August

    A Flavour of TornadoVM on Apple M1 Pro

    This article aims to describe the main steps required to install and run TornadoVM on Apple M1 Pro. Steps Install Prerequisites Run TornadoVM Installer Execute Unit Tests Performance Evaluation: Running Matrix-Multiplication on Apple M1 GPU 1. Install Prerequisites To install TornadoVM, it is necessary to have some packages installed. For instance, you will have to install Maven and wget in …

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  • 1 August

    Write Your Own Service Discovery Client for Apache APISIX

    API Gateways in general, and Apache APISIX in particular, provide a single entry point into one’s information system. This architecture allows for managing load balancing and failover over similar nodes. For example, here’s how you can create a route balanced over two nodes in Apache APISIX: curl http://localhost:9080/apisix/admin/routes/1 -H ‘X-API-KEY: edd1c9f034335f136f87ad84b625c8f1’ -X PUT -i -d ‘{ “uri”: “/*”, “upstream”: { …

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July, 2022

  • 29 July

    Understand the Root Cause of Regressions with Git Bisect

    In this series, I cover a lot of magical tools and git bisect is probably the best example of such magic. The hardest part in debugging is knowing the general area of the bug… and bisect literally shines a light on the specific commit that caused it! Before we begin, let’s make one thing clear: bisect is a tool for …

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