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Java Articles by Foojay.io

September, 2025

  • 11 September

    MongoDB Schemas in Java

    Author: Luke Thompson Original post on Foojay: Read More Table of Contents Why MongoDB and Java are such good friendsThe missing schema of loosely typed systems Bringing schema back Example: Spring Boot sea temperature service  Sea temperatures  Weather reports  Schemas Tip—BSON IDs and the _id field Traps—record definitions for POJO codec Data access Tip—typed queries with MongoCollection<> generics Trap—pagination and aggregate facets Creating our API Tip—indexing Trap—check your explain plans! Why …

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  • 10 September

    Stochastic AI Agility: Breaking Cycles of Debt

    Author: Miro Wengner Original post on Foojay: Read More The launch of ChatGPT in November 2022 has influenced and perhaps even changed the rules of the game in many areas. Although I personally focus on the IT industry, observations suggest that it is affecting the entire industry, including the lives of ordinary people. The article aims to discuss or address …

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  • 10 September

    JetBrains and Azul Collaborate on Kotlin Performance in Various JVMs

    Author: Jiří Holuša Original post on Foojay: Read More Table of Contents Benchmarking Kotlin performance on Azul Platform Prime What’s next for JetBrains and Azul?  JetBrains and Azul are collaborating on a shared vision of running Kotlin-generated bytecode on a high-performance Java platform to find new ways to enhance runtime performance. Benchmarks of Kotlin performance on Azul Platform Prime have yielded some eye-opening …

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  • 9 September

    Building REST APIs in Java with Spring Boot

    Author: Tim Kelly Original post on Foojay: Read More Table of Contents How can Spring help? Prerequisites Creating our appConnecting our database Our Book model Book repository Our REST controller CreateReadUpdateDeleteAdding DTOs and validation BookRequest BookResponse Updating the controller Testing the API Run the API Create Read Update Delete Conclusion REST has become the default choice for building web services, …

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  • 8 September

    Spec-Driven Development with AI: A New Approach and a Journey into the Past

    Author: Simon Martinelli Original post on Foojay: Read More Table of Contents The Problem with Code-Centric DevelopmentRequirements as the Single Source of Truth The Complete Workflow Everything is Code, Everything is Versioned AI as the Consistency Engine The Structure: Independent EpicsA Real Example: System Use Case SpecificationThe ResultsWhy This Works for Business ApplicationsGetting StartedThe Future of Business Application Development The …

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  • 4 September

    MongoDB Aggregations: Organizing Recipes by Meal Type with $group

    Author: Justin Jenkins Original post on Foojay: Read More Table of Contents Why Use $group for Organizing Recipes?Setting Up the DataUsing $group to Organize Recipes by Type Step 1: Grouping Recipes by Type Step 2: Including Recipe Details in Each Group Grouping Recipes by Tags Step 1: Using $unwind to Break Down Tags Advanced Tip: Using $match for Specific FiltersConclusion …

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  • 3 September

    KCDC 2025

    Author: Nicolas Frankel Original post on Foojay: Read More Table of Contents The talks Home Lab – Private Cloud on a budget Loom is more than virtual threads: Structured Concurrency and Scoped Values 15 Productivity tips to accelerate your Apache Maven builds Take the Polar Plunge: A Fearless Introduction to Apache Iceberg® Epic App Performance Starts with the Database The …

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  • 2 September

    JC-AI Newsletter #4

    Author: Miro Wengner Original post on Foojay: Read More Table of Contents Previous: 14 days have passed and it’s time for a new batch of readings that could shape developments in the field of artificial intelligence. The current newsletter vol. 4 offers us a closer look at several different areas of artificial intelligence. We start with the topic of energy …

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  • 2 September

    Queryable Encryption With Spring Data MongoDB: How to Query Encrypted Fields

    Author: Ricardo Mello Original post on Foojay: Read More Table of Contents Why Queryable Encryption?A quick look at Spring Data MongoDBUse case: HR system with encrypted fieldsSetting up the projectConfiguring dependencies and properties Adding mongodb-crypt Application.yml configuration Accessing properties in the code Building the application layers The domain model The repository The service The controller Setting up encryptionConfiguring the MongoDB …

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  • 1 September

    AI4Devs Schedule Published

    Author: Jonathan Vila Original post on Foojay: Read More Table of Contents Event Details A Program for Every Developer Meet the Speakers & Sessions Why This Year is Special Join Us 🚀 The AI4Devs Amsterdam 2025 Schedule is Live! The wait is over—AI4Devs Amsterdam has just published its official schedule, and it’s packed with talks that every developer working with …

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