Core Java
-
Jackson deserialization using a multi-parameter constructor
JSON deserialization is a common requirement in modern applications that interact with APIs and external systems. Handling different object creation…
Read More » -
Converting Between Byte Arrays and Short Arrays in Java
This article demonstrates how to convert a byte array to a short array and convert a short array back to…
Read More » -
Post-Quantum Cryptography in Java: What the NIST Standards Mean for Your TLS, JWT, and Key Management Code
In August 2024, NIST finalized the world’s first post-quantum cryptography standards. JDK 24 and 25 have already begun shipping the…
Read More » -
Convert Word Documents to HTML in Java Using Apache POI
Converting Microsoft Word documents into HTML is a common requirement for web publishing, document storage, and content transformation systems. In…
Read More » -
The Hidden Cost of Records: When Java Records Break Your Serialization, JPA, and Reflection-Heavy Code
Records are now a mainstream Java feature ā clean, concise, and genuinely useful. But the introductory tutorials skip the part…
Read More » -
C# 13 & .NET 9 vs Java 25: The Feature Gap Has Closed ā Now What?
For decades, Java and C# traded punches on language features. In 2026, however, that fight looks a lot more like…
Read More » -
Java Time API: Converting Between Date and Instant
Working with dates and times is a common requirement in applications, especially when dealing with distributed systems, APIs, or databases.…
Read More » -
Java’s Memory Model Is Not What You Think: The Gap Between the JMM Spec and the JIT’s Actual Guarantees
The Java Memory Model is formally specified. The JIT implements a superset of that spec in ways the spec permits…
Read More » -
Structured Concurrency and the Death ofĀ CompletableFutureĀ Hell
What Java 21ā26’s concurrency model actually changes at the architecture level. Not a feature tour ā a genuine examination of…
Read More »
