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A backend admin service failed to start due to a Spring circular‑dependency error where a bean was injected in its raw form before AOP proxy creation, exposing the limits of Spring’s three‑level cache and prompting a detailed analysis of the root cause and practical solutions.
This article details the technical design of the Apex VSCode plugin, covering its background, overall architecture, activation flow, SSO authentication, rule‑knowledge‑base engineering, remote Webview integration, version orchestration, project service handling, logging, and future enhancements for AI‑driven development efficiency.
This article dissects Alibaba's Fastjson library, explaining its architecture, core modules, project structure, serialization and deserialization processes, ASM‑based performance optimizations, AutoType security mechanisms, and streaming API, while providing code examples and practical insights for Java developers.
This article explains how the Transmittable ThreadLocal (TTL) Java agent works, why improper usage can cause context contamination, memory leaks, and CPU spikes, and provides real production cases, code examples, and practical recommendations to avoid these pitfalls.
This article explains why thread pools are essential for performance, explores the JDK ThreadPoolExecutor’s internal architecture, parameters, lifecycle states, common pitfalls, and provides practical best‑practice guidelines—including handling invokeAll timeouts, submit exceptions, rejection policies, and pool isolation techniques—to help developers use thread pools safely and efficiently.
This article walks through the design and implementation of a Chrome extension that mocks API responses by intercepting network requests using Manifest V3, covering architecture differences, core configuration, request‑blocking techniques, script injection, project structure, rule creation, whitelist management, and future enhancements.
After a normal DDL change on the OneDBA platform, a table's storage grew nearly 100% and some queries slowed down, revealing a MySQL InnoDB B+Tree page‑split flaw that stores only one row per 16KB page when large records are inserted, which also corrupts statistics and leads to slow SQL.
This article explains how InnoDB stores data in 16 KB pages, how B+Tree indexes work, derives the formula for the maximum number of rows a single MySQL table can hold, and why the practical limit of about twenty million rows exists, along with performance implications and optimization tips.
This article explains the core principles of Hessian, a Java‑optimized binary serialization protocol, covering object graph traversal, encoding formats, data‑block tags, repeated‑object reuse, small‑integer inlining, and integer compression, and shows why it offers higher efficiency and compression than text‑based alternatives.
This article details how a modern frontend logging system was dramatically improved by implementing intelligent database cleanup, asynchronous module loading, dynamic JSZip imports, log queue throttling, and Rollup build‑time fixes, resulting in a much smaller bundle and smoother user experience.
