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Building Ultra-Fast Spring Boot Applications with GraalVM Native Images
Cold starts and memory footprints are the main drawbacks of JVM apps in the cloud. GraalVM AOT compilation compiles your Spring Boot app directly to native machine code.
Demystifying Hexagonal Architecture in Spring Boot Applications
Hexagonal Architecture (Ports and Adapters) decouples your core business logic from databases, UI, and external APIs. Learn how to implement it in Spring Boot.
Java Concurrency: When to Use CompletableFuture vs. Reactive Streams
Both CompletableFuture and Project Reactor enable non-blocking execution in Java. We compare their programming models, latency, resource footprints, and use cases.
Tuning JVM Memory in Docker Containers: MaxRAMPercentage and Container Settings
Running Java inside Docker often leads to OutOfMemory (OOM) kills because the JVM doesn't respect container memory limits by default. Learn how to tune MaxRAMPercentage.
ThreadLocal vs. Scoped Values in Java: A Modern Approach to Data Sharing
ThreadLocal has been the go-to mechanism for implicit data sharing in Java, but it comes with memory leaks and scalability issues. Learn how Scoped Values (JDK 21+) solve this.
Supercharging Java Streams with Custom Stream Gatherers (JDK 22+)
Java Streams are powerful but lack flexible intermediate operations like windowing or stateful filters. Stream Gatherers (JDK 22+) change this. Learn how to write your own custom gatherer.
How to Find and Prevent Memory Leaks in Modern Java Applications
Even with automatic garbage collection, Java applications can leak memory. Learn the most common leak sources—ThreadLocal, static maps, unclosed resources—and how to diagnose them.
Project Panama: Say Goodbye to JNI with the Foreign Function & Memory API (JDK 22+)
For decades, calling native C/C++ libraries from Java required writing tedious and unsafe JNI glue code. Project Panama's Foreign Function & Memory API provides a clean, safe, and fast alternative.
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