Programming Featured Minecraft Runs on One Thread Because Nobody Wrote It for Two Every entity, every block update, every redstone pulse — one thread, twenty times a second, 50 milliseconds a pass. Folia's answer is to stop sharing the kitchen. Here is the tick budget and the ownership rules, read from the PaperMC source.
Programming Twelve Years in the Making: JDK 28 Ships Value Classes Preview A technical deep dive into the features shaping the next Java feature release, due March 2027 — including the twelve-year backstory behind its headline feature. JDK 28 is a non-LTS ("feature release") of the Java Platform, tracked as JSR 403 in the Java Community Process. It follows
Programming Featured JDK 27 New Features Explained: What Actually Changes JDK 27 ships nine JEPs, but only a few actually change your code today. What's default now, what's still preview, and what to do about each one now.
Minecraft Featured Your Minecraft Server Isn't Slow, It's Misconfigured Can't keep up! is not a hardware message. It's the server telling you a tick took longer than 50ms, and almost every cause is a default nobody changed. Here's what actually moves MSPT, with the flags that are now wrong and the setting that isn't where every guide says it is.
Minecraft Bukkit, Spigot, Paper, Folia: What You're Actually Running There is a fifteen-year fork tree underneath every Minecraft server, and most admins copy a jar without knowing what's in it. Here's the whole chain, with the code — including the config key most DAB guides get wrong.
Systems Administration How to Debug Minecraft Server Lag with Spark Profiler (2026 Guide) Your server dropped to 12 TPS. You copied Aikar's flags. You upgraded Java. Nothing changed. That's because JVM flags don't fix plugin bugs. Here's how to find what's actually killing your tick budget.
Minecraft Your Minecraft Server Wants Java 25, Not Java 26 Every six months the same thread appears and nobody maps the JVM engineering onto what a Minecraft server actually does. This does — version by version, with the flag most guides still tell you to set that will eventually stop your server from booting.
Programming Featured Java 26 Is Here, And It's Finally Finishing What It Started JDK 26's ten targeted features explained — what's shipping, what it means for production Java, and why the language keeps reshaping the terrain while you're not watching.
Programming What is Java? The Language That Runs Minecraft, Your Bank, and Half the Internet Java has been declared dead approximately forty times since 1995. It still runs Minecraft, Android, LinkedIn, Twitter's backend, and the financial systems that process your paycheck. Here is what the language actually is, how the JVM works, and why it refuses to die.
Software Development Featured Java 22: The Big Update for Minecraft & Enterprise The newest release of Java marks a strategic turning point for the Java Virtual Machine (JVM). While it is not a Long-Term Support (LTS) release like Java 21, it introduces architectural refinements that solve the last mile of latency problems for high-performance applications. For those of us managing
Programming Parallelizing Java Streams with Virtual Threads: Building vtstream You know what's funny about parallelStream() in Java? Everyone acts like it's this magic performance switch. Just slap .parallel() on your stream and suddenly your code is running on all your CPU cores, right? Wrong. Or at least, not in the way you'd want.
Programming Async Timeouts with CompletableFuture: Fixing Blocking Java Code the Right Way 1,000 threads. All of them blocked on future.get(). That's the production nightmare that forced a full rewrite — and the journey through reactive callbacks, exception swallowing pitfalls, and finally a clean within() utility that handles timeouts without giving up the async model.
Software Development Implementing Virtual Threads in Java Streams In the realm of software development, efficiently handling large datasets is crucial, especially with the proliferation of multicore processors. The Java Stream interface revolutionized the way collections are managed by supporting both sequential and parallel operations. However, harnessing the full potential of modern processors while maintaining the simplicity of the
Programming Implementing Your Own Garbage Collector in Java: Memory Allocation, Reference Tracking, and GC Algorithms This guide walks through designing a fixed-size memory pool, implementing reference counting with cycle detection, coding Mark & Sweep, Mark & Compact, and Copying GC algorithms, and wiring root object identification and sweeping into a working CustomGarbageCollector class.
Cryptography Ask Java for AES and You Get ECB. Nobody Warns You. Cipher.getInstance("AES") compiles, runs, encrypts, decrypts, and hands you the weakest mode in the box. Here is the OpenJDK source that makes that decision, and the line where ECB gets chosen for you.
Programming Your Container Is Running SerialGC and Nobody Told You You tuned G1 flags for a week. Your pod has one CPU, which means the JVM quietly picked a single-threaded collector at startup and ignored every flag you set. Here is the OpenJDK source that made that decision.
