Fundamentals 10 min read

JDK 11‑13 Enhancements: Switch Expressions, Text Blocks, Dynamic CDS, ZGC Improvements, Socket API Rewrite, New FileSystem Methods, NIO Updates, Time API, I18N, and Feature Removals

This article summarizes the major JDK 11‑13 updates, including switch expression simplifications, multi‑line text block literals, dynamic AppCDS archives, ZGC memory‑release enhancements, a modernized socket API, new FileSystems methods, bulk NIO ByteBuffer operations, the Reiwa era in java.time, Unicode 12.1 support, and several deprecated features that have been removed.

Java Captain
Java Captain
Java Captain
JDK 11‑13 Enhancements: Switch Expressions, Text Blocks, Dynamic CDS, ZGC Improvements, Socket API Rewrite, New FileSystem Methods, NIO Updates, Time API, I18N, and Feature Removals

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JavaNIOZGCJDKText Blocksswitch expressionsCore Library
Java Captain
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Java Captain

Focused on Java technologies: SSM, the Spring ecosystem, microservices, MySQL, MyCat, clustering, distributed systems, middleware, Linux, networking, multithreading; occasionally covers DevOps tools like Jenkins, Nexus, Docker, ELK; shares practical tech insights and is dedicated to full‑stack Java development.

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