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The dashboard turned red at weekday. Our order processing API latency jumped from fifty milliseconds to five seconds. Customer support tickets flooded in. Users reported timeouts d...
The technology reshaping how async-profiler and JFR see your code — explained without the kernel jargon. If you have spent any time fine-tuning a Java service in production, you ha...
JFR and async-profiler guides are everywhere. Safepoint logs — the raw output that tells you exactly why your JVM froze — are almost universally a footnote. This is the guide that...
JMH is powerful, but deceptively easy to misuse. Here are the five pitfalls that silently corrupt your results — and exactly how to fix them. If you have spent any time optimising...
Instrument your code quickly and document your high-level technical context carfully. The post Java Weekly, Issue 640 first appeared on Baeldung.
A ground-level look at how HotSpot C2 decides between scalar replacement and heap allocation, the everyday patterns that silently defeat it, and why measuring allocation rate — not...
Modern Java applications require robust observability and automated intelligence to ensure reliability at scale. Dynatrace’s AI-driven platform continuously learns application beha...
Two LTS releases now coexist. Virtual thread pinning is fixed. Memory is down 22%. Startup is faster. The gap is real — and it keeps growing. Why Two LTS Releases Now Overlap For y...
Multithreading has always been one of core strengths of Java over years. From the early days of the JVM, Java was designed with built-in support for concurrent programming. But for...
In this podcast, Jaromir Hamala, a seasoned Java engineer specialising in high-throughput data systems, shares his thoughts on how developers can tackle high-performance software d...
How four saved bytes per object can quietly transform your entire heap — and why you don’t have to change a single line of code. Every so often, the Java platform ships a change th...
Java 21 shipped virtual threads in September 2023. Two-plus years of production data later, the picture is more nuanced than the launch hype suggested. Teams at Netflix hit real de...
Все сейчас пишут красивый, современный код: стримы, record DTO, функциональные цепочки. Применяют лучшие практики и никаких мутабельных аккумуляторов и ручных циклов.А потом код на...
There is a specific kind of frustration reserved for Java developers who have just containerized their application. You spend hours optimizing your Spring Boot microservice, ensuri...
Есть такие анти‑паттерны, которые выглядят нормально и даже проходят код‑ревью, но тихо убивают производительность в горячих местах: - Конкатенация строк в циклах- String.format()...
JEP 514 and JEP 515 are both part of the OpenJDK Project Leyden effort to improve Java startup and warmup performance. Learn how they work together. The post Ahead-of-Time Class L...
Project Loom shipped in Java 21 in September 2023. Two-plus years of real production data — including Netflix’s deadlock post-mortem, thread-local memory explosions, and framework...
A look at the last few Java releases and feedback loops for agents. A solid week. The post Java Weekly, Issue 647 first appeared on Baeldung.
What is a Thread in Java? A thread in Java is the direction or path that is taken while a program is being executed. Generally, all the programs have at least one thread, known as...
Recently at IBM Software Labs, I worked on a task that forced me to understand something many Java developers rarely think about — how Java interacts with the operating system. Mos...
Imagine deploying a robust Spring Boot microservice that passes every integration test in your local Docker environment, only to watch it crash loop endlessly shortly after launchi...
The Problem You're running a Java application in a Docker container on your M1 Mac. Everything works fine, but you notice something strange: The resident set size (RSS) keeps growi...
This week's Java roundup for May 4th, 2026, features news highlighting: OpenJDK JEPs targeted for JDK 27; the sixth milestone release of Spring AI 2.0; the first milestone release...
Hello guys, a lot of you emailed me to share sample questions for 1Z0–830 exam or Java 21 certification exam and free coupons for my Udemy course “1Z0–830 Java SE 21 Developer Prof...
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