We Trusted Auto-Ack. The Queue Agreed. Our Costs Didn't.
Most async bugs announce themselves. This one didn't. No failed jobs. No customer complaints. No error logs. Just infrastructure costs climbing steadi…
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Idempotency Keys in Spring Boot: Make POST Safe Against Retries
A user clicks “Pay”, the network drops, the client retries… and your backend creates two payments. This isn’t a “frontend bug”. Retries happen everywh…
Apache Tomcat End of Life: Tomcat 9 is EOL — Migration Guide to Tomcat 10/11
Apache Tomcat 9 reached end of life on December 31, 2025 . No more security patches. No more CVE fixes. Every vulnerability disclosed from January 1, …
Как мы ускорили расчёт факторов ранжирования в поиске Ozon с помощью динамической компиляции
Всем привет! Меня зовут Петя Портнов, я работаю в Ozon ведущим разработчиком в команде среднего поиска — слоя, который ранжирует поисковую выдачу…
🧹 Prevent Memory Leaks in Joget BeanShell Scripts
Overview When a Joget BeanShell script runs once, a small resource leak may not look serious. When the same script runs inside workflow tools, schedul…
Rest Template - API for developers- Spring Boot
RestTemplate is a synchronous Spring Framework client used to consume RESTful web services by simplifying HTTP communication. Synchronous Communicatio…
Decoding the Observability Pipeline: A Java Architect's Guide to Metrics, Logs, and Traces
If you’ve spent any time modernizing a Java-based microservices architecture recently, you’ve likely hit the "Observability Wall." The ecosystem is dr…
Анатомия Claude Code. Первичный анализ и наполнение контекста
Каждый, кто программирует с агентами (Claude Code, Codex и т.д.), знает: перед тем как приступить к задаче, агент исследует проект. Это кажется логичн…
I got tired of bloated reminder apps, so I built one in Java
I got tired of bloated reminder apps, so I built my own I only wanted this: “Remind me about X at time Y.” Not a full planning system. Not 20 screens.…
Сокращение ручной работы на примере Spring Boot-проекта: OpenAPI generator, QueryDsl, OpenAI
Привет, Хабр! Меня зовут Александр, я Java-разработчик в GlowByte. Работаю в практике управления рисками и комплаенс (Risk & Compliance). Хочу под…
GraphQL with Spring Boot: A Hands-On Tutorial for REST Developers
Published 2026-05-28 by Shubham Bhati — Backend Engineer (Java 17, Spring Boot, Microservices). As backend engineers, we've all been there - stuck wit…
Гайд: как системному аналитику построить доменную модель для Java-микросервисов
Системный аналитик пишет User Story, рисует BPMN, описывает API — а через месяц архитектор перекраивает всё, потому что «это не ложится…
Upgrading OtakuShelf to JHipster 9.1.0
JHipster 9.1.0 just dropped. For years, that sentence put a specific knot in Sam's stomach — version bumps meant a git-merge adventure, surprise confl…
Polishing the catalog (and reading the agent's receipts)
OtakuShelf models everything now, but it's a prototype with prototype habits: the anime entities Sam added last week aren't paginated, there are no DT…
Adding the anime side without holding my breath
A week later, OtakuShelf has a few franchises and their manga in it. Now Sam wants the other half: anime. That means new entities — Anime , Season , E…
Pairing up: scaffolding OtakuShelf with an agent
Sam has shipped a dozen JHipster apps the old-fashioned way: open an editor, write the JDL, run the CLI, answer its questions, repeat. This time Sam w…
Java Architectures
Java remains one of the most widely used programming languages in enterprise development thanks to its stability, mature ecosystem, and ability to bui…
SAST прямо в IDE: как Veai ищет уязвимости в Java/Kotlin-проекте и помогает их исправлять
Эта статья про SAST в IDE: как Veai проверяет Java/Kotlin-проект, показывает путь данных по коду и помогает исправлять найденные уязвимости,…
FHIR in Indian Healthcare IT: What Every Developer Building HMIS Software Needs to Know
FHIR in Indian Healthcare IT: What Every Developer Building HMIS Software Needs to Know India is in the middle of the most ambitious healthcare digiti…
Шёл за утечкой памяти, нашёл утечку диска: SXSSFWorkbook без dispose() в Apache POI
Меня зовут Игорь Симаков, работаю engineering manager’ом и руковожу командами разработки На одном из наших сервисов, который работает с XLSX-файлами, …
Race-Condition: How a Single SQL Line Eliminated 100 Lines of Retry and Lock Code
hat "rare" bug that looks intermittent but is actually deterministic. It is just waiting for your pods to scale. I recently dealt with a textbook conc…
Drive JHipster with your AI agent: introducing jhipster-mcp (v0.0.4)
TL;DR — jhipster-mcp is an open-source Model Context Protocol server that lets an AI agent generate and evolve JHipster applications for you. You desc…
[Перевод] Java — быстрая. Ваш код может таким не быть
Есть такие анти‑паттерны, которые выглядят нормально и даже проходят код‑ревью, но тихо убивают производительность в горячих местах: - Конкатена…
Building AI Agents with Spring AI and Amazon Bedrock AgentCore - Part 5 Deploy MCP client for Conference application on AgentCore Runtime
Introduction In part 2 , we explained how to deploy and run our conference search application on the Amazon Bedrock AgentCore Runtime as the MCP serve…
PromptCape vs PromptBase: similar names, different products
I keep getting the same question: "Is PromptCape the same thing as PromptBase?" No. They're different products solving different problems for differen…
Why Java + Spring Boot is Still the King of Enterprise Backend (2026)
Why Java + Spring Boot is Still the King of Enterprise Backend (2026) After 13 years building enterprise systems across PayPal, Salesforce, and NCR, I…
Кейс. Zero Bug Policy: как мы снизили бэклог багов в 4 раза за месяц
Баги — неизбежная часть разработки. В этой статье расскажу наш опыт: как мы внедрили Zero Bug Policy в нашем стартапе (B2B fintech) и за месяц с…
Как настроить observability в Spring Boot 3
Микросервис работает, но иногда тормозит — и вы не знаете, где копать. Логи чистые, метрики в норме, а пользователи жалуются.…
Why Java Still Rules the Programming World in 2026
If you’ve ever looked into coding, you’ve likely seen the steaming coffee cup logo. Since its birth at Sun Microsystems in the 1990s, Java has evolved…
The Java reordering tool I wanted for years, so I finally built it
For years, I wanted one simple thing in Java projects: a reliable way to keep class members ordered and formatted consistently. Fields, constructors, …