Home
Topic
java 21
3 articles
Java 21 to 25: Virtual Threads, Pattern Matching, and Structured Concurrency
TLDR: Java 21 LTS makes virtual threads a production-ready replacement for bounded thread pools — your newFixedThreadPool(200) can become newVirtualThreadPerTaskExecutor() and handle 10× the concurren
•22 min read
Adapting to Virtual Threads for Spring Developers
TLDR: Platform threads (one OS thread per request) max out at a few hundred concurrent I/O-bound requests. Virtual threads (JDK 21+) allow millions — with zero I/O-blocking cost. Spring Boot 3.2 enabl
•18 min read
Java 8 to Java 25: How Java Evolved from Boilerplate to a Modern Language
TLDR: Java went from the most verbose mainstream language to one of the most expressive. Lambdas killed anonymous inner classes. Records killed POJOs. Virtual threads killed thread pools for I/O work.
•25 min read