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marmo.dev

Production notes, compatibility guides, and hard-won lessons for Java, Spring Boot, Angular, cloud, databases, and developer tooling.

195 deep posts OSS tools & notes

Latest updates Total 195 deep posts

20260326-how-good-is-the-llms-code

--- published: true title: 'How good is LLM Code? A self-evaluation done by AI' description: 'They write fast a lot of code, but

Angular

Angular 22.0: New features

Angular 22.0 introduces a stable signal architecture, strict modern defaults, and formal specifications for AI integration, solidifying the framework for the web scalability.

Java

Spring Boot Versions Explorer

SpringDiff lets you compare any two Spring Boot versions side by side — starters, properties, auto-configurations, and release notes in one place.

Java

Spring Boot 4.0 Null Safety: JSpecify Ends a Decade of Fragmentation?

Spring Boot 4.0 adopts JSpecify as its null annotation standard. Find out what changes, why it matters, and how it improves your code with four before/after examples.

Claude vs. Codex vs. Human Dev: A Reality Check

Can we build professional solutions without checking the code with Claude and Codex?

Java

Java 26 - the new features

What is coming in Java 26 for developers

Spring

Spring Annotations: The 2026 Essential Cheat Sheet

Master Spring annotations in 2026: from core stereotypes to new features like native resilience, virtual threads support, and null safety.

Java

Why WordPress bots keep knocking on your Java server

Stop wasting JVM threads on WordPress bots. Here is how to block PHP scanners at the Cloudflare, Nginx, and Spring Security levels to keep your Java logs clean.

Java

Lombok: The Batman of the JRE that saved Java from Boilerplate

Is Lombok a bad citizen or a Superhero?

Java

The Friction Zone: Why mixing Kotlin, Java, Hibernate and Lombok is a technical debt nightmare

Transitioning a legacy Java monolith to Kotlin sounds like a modern developer’s dream, but when that project relies on Hibernate and Lombok, the "100% interoperability" promise quickly unravels. This post explores the deep-rooted architectural conflicts that occur when Kotlin’s opinionated, null-sa…

Java

How to Fix “Port 8080 Already in Use” in Spring Boot (Mac, Linux, Windows)

Learn how to fix the “Port 8080 already in use” error in Spring Boot. Find and kill the process on Mac, Linux, or Windows and prevent future port conflicts.