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Last updated 4 days ago
When Memory Overflows: Too Many ApplicationContexts in Spring Integration Tests
4 days ago
In Spring, the ApplicationContext is the central container object that manages all...
How to Map PostgreSQL JSON Data Types in Java Using asentinel-orm
5 days ago
It isn’t seldom when software products need to easily and efficiently manage...
Debugging Performance Regressions in High-Scale Java Web Services: A Systematic Approach
6 days ago
High-scale, real-time services live under unforgiving economics. Ad tech and similar platforms...
Gatherers in Java: What They Are and Why They Matter
6 days ago
Java 8, released more than a decade ago, is a major milestone...
The JVM Pause That Wasn't: A War Story
11 days ago
In high-performance computing, we are trained to hunt for bottlenecks in our...
JPlus: A Modern Java Superset Language
12 days ago
JPlus is a Java superset language running on the JVM that enhances...
Top Takeaways From Devoxx Belgium 2025
13 days ago
In October 2025, I visited Devoxx Belgium, and again it was an...
Building Reactive Microservices With Spring WebFlux on Kubernetes
18 days ago
Migrating from a monolithic Java 8 system to a reactive microservice architecture...
Writing (Slightly) Cleaner Code With Collections and Optionals
21 days ago
Kilo is an open-source project for creating and consuming RESTful and REST-like...
Set Up Spring Data Elasticsearch With Basic Authentication
21 days ago
Recently, I wrote the Introduction to Spring Data Elasticsearch 5.5 article about...
Diagnosing and Fixing a Page Fault Performance Issue With Arm64 Atomics
24 days ago
While running a synthetic benchmark that pre-warmed the cache, we noticed an...
Ranking Full-Text Search Results in PostgreSQL Using ts_rank and ts_rank_cd With Hibernate 6 and posjsonhelper
25 days ago
In a previous article, we explored how to implement full-text search in...