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Java Articles by Foojay.io

March, 2023

  • 25 March

    Control your Arduino with Spring

    Have you ever wanted to control your Arduino board from a Raspberry Pi, or your computer, using only Java and not the Arduino language? In this article, I show how I created a web app to control my Arduino with a Raspberry PI using Spring. And so this is another article about Java on Raspberry PI or perhaps this time …

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  • 25 March

    Watch Area and Renderers

    This is it. The debugging book is live. I would really appreciate reviews and feedback! I also finished recording and editing the entire course. There are 50 total videos which total in 7 hours… I also recorded additional videos for the two other free courses for beginners and for modern Java. So keep an eye on those! Renderers In today’s …

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  • 24 March

    How to Build and Deploy a Real-time Cloud-based Logging System

    Logs and traces generated by applications are valuable sources of information that can help detect issues and improve performance. However, they are often treated separately from other data, even though they are no different from the data an application works with. In this tutorial, we will explore a different approach: treating logs and traces as part of a scalable cloud …

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  • 24 March

    How to Create a Failover Client using the Hazelcast Viridian Serverless

    Failover is an important feature of systems that rely on near-constant availability. In Hazelcast, a failover client automatically redirects its traffic to a secondary cluster when the client cannot connect to the primary cluster. Consider using a failover client with WAN replication as part of your disaster recovery strategy. In this tutorial, you’ll update the code in a Java client …

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  • 24 March

    Mitigating Path Traversal Vulnerabilities in Java

    Path traversal is a type of security vulnerability that can occur when a web application or service allows an attacker to access server files or directories that are outside the intended directory structure. This can lead to the unauthorized reading or modification of sensitive data. In the context of file uploads, a path traversal vulnerability can occur when an application …

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  • 23 March

    Predicting Secure Java Projects on Maven Central

    If you’ve searched for Maven Central components in the last six months, you may have noticed some pretty big changes to the website, including a UI facelift and some new component analysis tools like BOM Doctor and the Sonatype Safety Rating. It’s no coincidence that many of these changes are security related. Maven Central, along with public code repositories, are …

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  • 23 March

    Event-Driven Order Processing Program

    Following the Hello World example of a simple, independently deployable real-time Event-Driven Microservice, this article looks at a more realistic example of an Order Processor with a New Order Single in and an Execution Report out. A New Order Single is a standard message type for the order of one asset in the FIX protocol used widely by financial institutions …

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  • 22 March

    5 Great Reasons to use jOOQ

    Hi, I’m Lukas. I was invited to talk about the business behind jOOQ on Foojay.io and as a short introduction to jOOQ, I’d like to highlight 5 great reasons to use it. Before discussing those reasons: What is jOOQ jOOQ is an internal domain-specific language (DSL) modelling the SQL language as an API directly in Java. This provides compile-time type …

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  • 22 March

    Vaadin 24: Java 17, Jakarta EE 10, Servlet 6, Spring Boot 3

    Vaadin 24 delivers a significant step forward with a new technology baseline that includes Java 17, Jakarta EE 10, Servlet 6.0, Spring 6.0, and Spring Boot 3. This ensures you can continue building Vaadin Flow apps with the latest Java technologies. It also provides several exciting improvements that help you build Java applications even faster. Let me introduce some of …

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  • 21 March

    Java on Visual Studio Code Update – February 2023

    Hi everyone, welcome to our February update! In this article, we will bring you new features related to JUnit 5 parallel testing as well as new filter widget for Spring Boot dashboard. There is also some exciting news from GitHub Copilot, so let’s get started. JUnit 5 Parallel Testing Support JUnit 5 is a popular testing framework for Java developers, …

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