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JD Cloud Developers
JD Cloud Developers
Jun 6, 2025 · Backend Development

Seamless Java JDK 21 Upgrade: Solving Dependency and Build Challenges

This article outlines the motivations, progress, and common issues encountered when upgrading over 100 Java applications to JDK 21, including deprecated APIs, module system constraints, Maven plugin incompatibilities, and GC choices, and provides concrete migration steps, configuration templates, and best‑practice recommendations for a smooth transition.

DependencyManagementGarbageCollectionJDK21
0 likes · 12 min read
Seamless Java JDK 21 Upgrade: Solving Dependency and Build Challenges
FunTester
FunTester
Apr 6, 2025 · Backend Development

Understanding Java ClassLoader: Common Issues, Root Causes, and Solutions

This article explains Java's dynamic ClassLoader mechanism, outlines the hierarchy of built‑in loaders, details frequent problems such as ClassNotFoundException, NoClassDefFoundError, ClassCastException and version conflicts, and provides practical troubleshooting steps and best‑practice recommendations for reliable class loading.

ClassLoaderCustomClassLoaderDebugging
0 likes · 10 min read
Understanding Java ClassLoader: Common Issues, Root Causes, and Solutions
Tencent Cloud Developer
Tencent Cloud Developer
Apr 13, 2022 · Backend Development

Using Go 1.18 Multi‑Module Workspaces: Tutorial and Practical Examples

The article walks through Go 1.18’s new multi‑module workspaces, detailing prerequisites and essential commands, then demonstrates creating a simple “hello” module and a shared library, initializing a workspace with go work, and developing both modules concurrently without committing changes.

CodeExampleDependencyManagementGo
0 likes · 11 min read
Using Go 1.18 Multi‑Module Workspaces: Tutorial and Practical Examples