Core Java
-
Java 25 vs Java 21: The Upgrade Guide Nobody Has Written Yet
A practical, decision-driven comparison for enterprise teams on Java 21 — covering the three changes that actually matter for production.…
Read More » -
Compact Object Headers: The Invisible JDK 25 FeatureWith the Biggest Memory Impact
How four saved bytes per object can quietly transform your entire heap — and why you don’t have to change…
Read More » -
Project Babylon: Code Reflection and What It Means for ML on the JVM
For most of its history, Java has sat on the sidelines of the machine learning conversation. Python dominated that space,…
Read More » -
A Guide to Exporting and Backing Up H2 Databases
Data protection is a critical aspect of application development. Applications that rely on embedded databases, such as the H2 Database…
Read More » -
The Post-Quantum Security Timeline for Java: JEP 496, JEP 527, and What Teams Should Do Now
If you manage Java services that handle sensitive data, 2026 is a year that deserves your attention. Not because quantum…
Read More » -
jadx Decompile Classes Tutorial
Reverse engineering compiled artifacts is an essential practice in debugging, interoperability, and security analysis. Tools such as jadx enable us…
Read More » -
GraalVM Native Image vs Project Leyden: Two Answers to the Same Cold-Start Problem
Leyden’s AOT approach is fundamentally different from GraalVM’s closed-world assumption. Here is what architects actually need to know to choose…
Read More » -
Java Ahead-of-Time (AOT) Class Loading And Linking Example
Ahead-of-Time (AOT) Class Loading & Linking is an optimization technique introduced in modern Java runtimes to reduce application startup time…
Read More » -
Structured Concurrency: Why It Matters More Than Virtual Threads for Correctness
Virtual threads gave Java scale. Structured concurrency gives it correctness. Here is why the second half of Project Loom quietly…
Read More »
