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This article explains the purpose and inner workings of Java's Runtime.addShutdownHook, walks through the Runtime and ApplicationShutdownHooks source code, demonstrates practical usage with examples, discusses common scenarios, potential risks, and best‑practice solutions for reliable resource cleanup during JVM shutdown.
Taro, an open‑source cross‑platform framework initiated by JD, now offers a HarmonyOS solution that evolved from an ArkTS bridge to a high‑performance C‑API based multi‑threaded architecture, delivering native‑level rendering, rich component support, and dynamic updates for mobile developers.
This paper investigates the “hourglass” phenomenon in residual‑quantized semantic identifiers for generative search and recommendation, revealing that token concentration in intermediate codebooks causes path sparsity and long‑tail distributions, and proposes heuristic layer removal and adaptive token‑pruning strategies that markedly improve model performance.
This article compares Go and Java across core language features—code organization, visibility, variable and constant declarations, functions, interfaces, data types, reference types, error handling, and control structures—providing Java developers with practical insights for adopting Go in cloud‑native development.
This article explains how reusing H5 marketing activity pages with a monorepo workspace can accelerate development by up to 40%, outlines five technical solutions, shows workspace structure and package configuration, and discusses central repository management and its suitability for similar projects.
Leveraging 3D vision and AIGC, JD Retail’s R&D team converts abundant 2D video assets into high‑quality stereoscopic 3D space videos through a pipeline that includes monocular depth estimation, novel view synthesis, multi‑branch inpainting, and MV‑HEVC encoding, validated by ICME 2025 and a new StereoV1K dataset.
This article explains how moving aggregation logic from in‑memory processing to ClickHouse SQL, synchronizing configuration data, and leveraging ClickHouse ReplacingMergeTree tables with local joins dramatically reduces query latency and memory consumption for large‑scale supply‑chain planning workloads.
This article explains how Spring's caching annotations—@EnableCaching, @Cacheable, @CachePut, and @CacheEvict—work together to simplify cache management, includes Maven dependency setup, configuration class, entity and service code, a full Spring Boot example, test cases, and visual illustrations of cache miss, hit, update, and eviction.
This article explores the challenges of data consistency in RPC timeout scenarios, especially when idempotency fails, and introduces a lightweight mock/spy tool that can dynamically configure mock responses for any method call, helping restore consistency without full transaction support.
This article introduces PCTLM, a pioneering billion‑parameter pure time‑series large model that outperforms existing solutions like GPT4TS across multiple benchmarks, detailing its massive high‑quality dataset, novel patch‑based architecture, and a tailored RLHF framework (TPO) that enhances zero‑shot forecasting accuracy.
