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5000 articles · Page 8 of 50
Full-Stack DevOps & Kubernetes
Full-Stack DevOps & Kubernetes
Feb 22, 2026 · Cloud Native

How to Stabilize Java Services on Kubernetes: A 3‑Year Success Story

This article walks through a real‑world Java service on Kubernetes, detailing the initial confidence, recurring OOM and rollout issues, and a multi‑round remediation that introduced container‑aware JVM settings, refined resource requests, OOM dumps, probes, and metrics, ultimately achieving three years of stable operation with lower resource usage.

JVMJavaKubernetes
0 likes · 10 min read
How to Stabilize Java Services on Kubernetes: A 3‑Year Success Story
LuTiao Programming
LuTiao Programming
Feb 22, 2026 · Backend Development

Mastering Spring Boot 4 Declarative HTTP Client: A Complete Practical Guide

This article walks through Spring Boot 4's built‑in HTTP Interface, showing how to replace RestTemplate/WebClient with a type‑safe, annotation‑driven RestClient, covering Maven setup, DTO and interface definitions, configuration, error handling, header injection, timeout control, reactive alternatives, design principles, and a side‑by‑side comparison with the legacy approach.

JavaRestClientSpring Boot
0 likes · 11 min read
Mastering Spring Boot 4 Declarative HTTP Client: A Complete Practical Guide
Top Architect
Top Architect
Feb 21, 2026 · Backend Development

Mastering Unified Exception Handling in Spring: Clean Code, Enums, and Assertions

This article explains how to replace repetitive try‑catch blocks in Java Spring applications with a unified exception handling strategy that leverages @ControllerAdvice, custom enums, and assertion utilities, providing clean, maintainable code, internationalized error messages, and consistent response structures for both business and system errors.

EnumsJavaSpring
0 likes · 21 min read
Mastering Unified Exception Handling in Spring: Clean Code, Enums, and Assertions
Top Architect
Top Architect
Feb 21, 2026 · Backend Development

Boost Your Maven Multi‑Module Setup with a One‑Click Generation Plugin

This article introduces a Maven aggregation Quickstart plugin for IntelliJ IDEA that automates the creation of multi‑module Java projects, explains its core features, provides step‑by‑step installation and usage instructions, shows how to customize templates, and offers troubleshooting tips along with the source repository.

AutomationIntelliJJava
0 likes · 11 min read
Boost Your Maven Multi‑Module Setup with a One‑Click Generation Plugin
SpringMeng
SpringMeng
Feb 21, 2026 · Backend Development

How to Elegantly Implement an Online User Count with Redis ZSET

This article explains how to build a real‑time online user counter by identifying users via tokens or browser fingerprints, storing them in a Redis sorted set, and using ZADD, ZRANGEBYSCORE, ZREMRANGEBYSCORE and ZREM commands to add, query, and clean the data.

FingerprintJSJavaRedis
0 likes · 7 min read
How to Elegantly Implement an Online User Count with Redis ZSET
Top Architect
Top Architect
Feb 20, 2026 · Backend Development

Why a Workflow Engine Is Essential for Scalable Business Platforms

The article explains how excessive if‑else branching in multi‑business systems harms code maintainability, and demonstrates how a workflow engine combined with a plugin extension mechanism can isolate business logic, simplify testing, and enable flexible execution chains, using the open‑source MemberClub project as a concrete example.

JavaProcess OrchestrationSpringBoot
0 likes · 11 min read
Why a Workflow Engine Is Essential for Scalable Business Platforms
Coder Trainee
Coder Trainee
Feb 20, 2026 · Backend Development

Why Lombok-generated getters cause JSON fields to become lowercase

The article explains how Lombok’s @Data annotation generates getter and setter methods with a lowercase first letter for camel‑case fields, causing Jackson to serialize JSON property names in all lowercase, and offers three fixes: write methods manually, use @JsonProperty, or rename fields to avoid lower‑upper patterns.

JavaLombokcamelCase
0 likes · 4 min read
Why Lombok-generated getters cause JSON fields to become lowercase
Top Architect
Top Architect
Feb 19, 2026 · Backend Development

Implementing HTTP Range (Partial Content) Downloads with SpringBoot

This article explains why large file downloads can fail on unstable networks, how to use HTTP Range headers and status codes for resumable downloads, and provides a complete SpringBoot implementation—including controller, service logic, and range‑parsing code—to enable reliable partial content delivery.

File DownloadHTTPJava
0 likes · 10 min read
Implementing HTTP Range (Partial Content) Downloads with SpringBoot
Top Architect
Top Architect
Feb 18, 2026 · Fundamentals

What’s New in Java 25? 10+ Game‑Changing Features Explained

The article outlines the most impactful Java 25 enhancements—including compact object headers, generational Shenandoah GC, ahead‑of‑time compilation, JFR improvements, security updates, and the removal of 32‑bit support—explaining how each change boosts performance, safety, and observability for developers.

AOTGarbage CollectionJEP
0 likes · 5 min read
What’s New in Java 25? 10+ Game‑Changing Features Explained
Java Tech Enthusiast
Java Tech Enthusiast
Feb 18, 2026 · Backend Development

How Spring Debugger Enables Agent‑Free Remote Debugging of Java Apps

Spring Debugger’s new remote debugging feature lets developers inspect Spring beans, execute SQL, view configuration, and analyze transactions on running applications without using Java agents, leveraging container thread models like Tomcat’s persistent workers, with simple JDWP setup and a few limitations.

IDEJavaRemote Debugging
0 likes · 11 min read
How Spring Debugger Enables Agent‑Free Remote Debugging of Java Apps
java1234
java1234
Feb 18, 2026 · Fundamentals

A Complete Illustrated Guide to Java Generics: Benefits, Usage, and Common Pitfalls

This article explains why raw collections are unsafe, how Java generics enforce compile‑time type safety, reduce casting, improve code readability, and boost performance, and it walks through generic interfaces, collections, custom generic classes, inheritance rules, diamond syntax, and common restrictions with concrete code examples and diagrams.

CollectionsJavacompile-time checking
0 likes · 10 min read
A Complete Illustrated Guide to Java Generics: Benefits, Usage, and Common Pitfalls
Coder Trainee
Coder Trainee
Feb 17, 2026 · Backend Development

Understanding Spring Cache’s @Cacheable Annotation

The article explains how Spring Cache, introduced after Spring 3.1, uses the @Cacheable annotation to declaratively cache method results, detailing each attribute such as cacheNames, key, keyGenerator, and unless, with code examples illustrating key generation and conditional caching.

Backend DevelopmentCacheableCaching
0 likes · 4 min read
Understanding Spring Cache’s @Cacheable Annotation
Coder Trainee
Coder Trainee
Feb 17, 2026 · Backend Development

How @CachePut Updates Cache in Spring Cache

The article explains that @CachePut serves as a trigger to update or add cache entries in Spring Cache, contrasting its behavior with @Cacheable, detailing execution flow, handling of null results, and the recommendation against using both annotations on the same method.

CacheCachePutCacheable
0 likes · 3 min read
How @CachePut Updates Cache in Spring Cache
SpringMeng
SpringMeng
Feb 17, 2026 · Backend Development

Building an MCP Service with Spring Boot 3 and OpenSpec: A Hands‑On Demo

This article walks through the complete development of a minimal Model Context Protocol (MCP) server using Spring Boot 3 and Server‑Sent Events, illustrating how OpenSpec drives the workflow from proposal and task breakdown to design, implementation, testing, and integration with Claude Code.

API designJSON-RPCJava
0 likes · 13 min read
Building an MCP Service with Spring Boot 3 and OpenSpec: A Hands‑On Demo
Java Captain
Java Captain
Feb 16, 2026 · Backend Development

Long vs BigDecimal: Choosing the Right Java Type for Money

This article compares ten community‑sourced approaches for representing monetary values in Java, explaining when a simple Long, a precise BigDecimal, a String, custom wrappers, Protobuf tricks, leadership directives, AI assistance, or even minimal integer types are appropriate, and why each choice matters.

Backend DevelopmentBigDecimalData Types
0 likes · 3 min read
Long vs BigDecimal: Choosing the Right Java Type for Money
SpringMeng
SpringMeng
Feb 16, 2026 · Fundamentals

A Complete Illustrated Guide to Java Generics

This article explains why Java generics were introduced, demonstrates how they improve type safety and reduce casting through concrete examples with generic classes, interfaces, collections, custom generic methods, and highlights common pitfalls such as generic arrays and static methods.

CollectionsCustom Generic MethodsJava
0 likes · 9 min read
A Complete Illustrated Guide to Java Generics
Top Architect
Top Architect
Feb 15, 2026 · Backend Development

Why Did My Payment Service Lose Data? Uncovering Hidden Transaction Bugs in Spring

A payment service failed to insert orders despite successful payments, showing no errors, occasional lock timeouts, and intermittent success, which was traced to a missing transaction commit that polluted reused connections, causing unrelated business failures until the bug was fixed and preventive measures were added.

Connection PoolJavaSpring
0 likes · 11 min read
Why Did My Payment Service Lose Data? Uncovering Hidden Transaction Bugs in Spring
Java Tech Enthusiast
Java Tech Enthusiast
Feb 15, 2026 · Backend Development

Why Switch from Maven to Gradle? A Hands‑On Migration Guide

This article walks through converting a Maven‑based Java Spring Boot project (mall‑tiny) to Gradle, explains Gradle's key features and plugins, provides step‑by‑step setup with screenshots, shows the full build.gradle file, and compares build times to demonstrate Gradle's speed advantage.

Build toolJavaSpring Boot
0 likes · 10 min read
Why Switch from Maven to Gradle? A Hands‑On Migration Guide
Selected Java Interview Questions
Selected Java Interview Questions
Feb 14, 2026 · Backend Development

Master Dynamic Table Names in MyBatis‑Plus with a Simple Starter

This article introduces an open‑source MyBatis‑Plus dynamic‑table starter, explains why dynamic table names are needed for large‑scale data, outlines its key features, provides step‑by‑step installation and quick‑start instructions, demonstrates advanced usage, debugging tips, FAQs, and real‑world scenarios.

Dynamic TableJavaSpring Boot
0 likes · 9 min read
Master Dynamic Table Names in MyBatis‑Plus with a Simple Starter
Coder Trainee
Coder Trainee
Feb 14, 2026 · Backend Development

Using RedisTemplate to Manage String and Hash Data in Spring

This article demonstrates how to encapsulate common RedisTemplate operations—such as deleting single or multiple keys, setting expiration, checking existence, and performing String and Hash CRUD actions—by providing concrete Java code examples and step‑by‑step method implementations.

CacheHashJava
0 likes · 4 min read
Using RedisTemplate to Manage String and Hash Data in Spring
Java Tech Enthusiast
Java Tech Enthusiast
Feb 13, 2026 · Backend Development

How DDD + CQRS Can Turn Chaotic Java Code into Clean, Scalable Architecture

This guide shows how to break down tangled Java services using Domain‑Driven Design and Command‑Query Responsibility Segregation, providing concrete terminology, layered diagrams, code examples, and step‑by‑step migration strategies to improve maintainability, performance, and team communication.

CQRSDDDDomain-Driven Design
0 likes · 14 min read
How DDD + CQRS Can Turn Chaotic Java Code into Clean, Scalable Architecture
LuTiao Programming
LuTiao Programming
Feb 12, 2026 · Backend Development

Understanding @Resource in Spring Boot: Why 90% of Developers Misuse It

The article explains the JSR‑250 @Resource annotation in Spring Boot, detailing its name‑first injection logic, differences from @Autowired, common pitfalls with multiple implementations, and proper usage patterns—including explicit name specification and why constructor injection is preferred—providing code examples and interview‑ready explanations.

AutowiredDependency InjectionJava
0 likes · 9 min read
Understanding @Resource in Spring Boot: Why 90% of Developers Misuse It
IT Services Circle
IT Services Circle
Feb 12, 2026 · Backend Development

Du Xiaoman Java Backend Salary & Interview Secrets Revealed

The article details Du Xiaoman's 2023 campus hiring salaries for Java backend roles, explains the significance of signing bonuses, shares a successful intern story, and provides in‑depth interview preparation covering thread pools, locks, AQS, CAS, SQL optimization, sharding, MVCC, and transaction isolation levels.

JavaSalarybackend
0 likes · 22 min read
Du Xiaoman Java Backend Salary & Interview Secrets Revealed
Top Architect
Top Architect
Feb 12, 2026 · Fundamentals

What’s New in Maven 4? Model Upgrade, Flattened POMs, and Parallel Builds

Maven 4, released at the end of 2025, introduces a 4.1.0 POM model, separates build and consumer POMs to flatten dependencies, adds explicit classpath‑jar and module‑jar artifact types, renames modules to subprojects, and implements a tree‑based lifecycle for true parallel builds, all while remaining backward compatible.

JavaPOMParallel
0 likes · 10 min read
What’s New in Maven 4? Model Upgrade, Flattened POMs, and Parallel Builds
Java Architect Handbook
Java Architect Handbook
Feb 11, 2026 · Backend Development

Convert Word (.docx) to PDF in Spring Boot with docx4j

This guide walks you through a fully open‑source, pure‑Java solution for converting uploaded .docx files to PDF in a Spring Boot application, covering library selection, Maven dependencies, a reusable utility class, controller implementation, and handling Chinese font issues on Windows and Linux.

JavaPDF conversionSpring Boot
0 likes · 12 min read
Convert Word (.docx) to PDF in Spring Boot with docx4j
Architect's Tech Stack
Architect's Tech Stack
Feb 11, 2026 · Fundamentals

IntelliJ IDEA 2026.1 EAP 3 Finally Sends Deleted Files to the Recycle Bin – What It Means for Developers

JetBrains' IntelliJ IDEA 2026.1 EAP 3 introduces a long‑awaited feature that moves deleted files to the system recycle bin instead of permanently erasing them, while also delivering a host of Spring, Java, Kotlin, editor, AI, platform, and performance improvements aimed at modern remote and AI‑enhanced development workflows.

AIIDEIntelliJ
0 likes · 5 min read
IntelliJ IDEA 2026.1 EAP 3 Finally Sends Deleted Files to the Recycle Bin – What It Means for Developers
Sohu Smart Platform Tech Team
Sohu Smart Platform Tech Team
Feb 11, 2026 · Backend Development

Why TreeSet Throws ConcurrentModificationException and How to Fix It

An in‑depth look at why Java’s TreeSet can trigger ConcurrentModificationException under high concurrency, exploring the red‑black tree’s non‑atomic operations, thread scheduling nuances, and how various concurrent set implementations—synchronized wrappers, read‑write locks, ConcurrentSkipListSet, CopyOnWriteArraySet, and custom designs—compare in performance and suitability.

CollectionsConcurrentModificationExceptionJava
0 likes · 16 min read
Why TreeSet Throws ConcurrentModificationException and How to Fix It
Top Architect
Top Architect
Feb 10, 2026 · Backend Development

Why Process Orchestration Is Essential for Scalable Backend Systems

The article explains how excessive if‑else logic harms maintainability in a business middle‑platform, introduces a flow‑engine and plugin‑extension approach to isolate code and support rapid business expansion, and demonstrates the design with the open‑source MemberClub project, including configuration, node definitions, execution principles and core Java implementation.

JavaProcess Orchestrationbackend-architecture
0 likes · 11 min read
Why Process Orchestration Is Essential for Scalable Backend Systems
Java Tech Enthusiast
Java Tech Enthusiast
Feb 10, 2026 · Backend Development

IntelliJ IDEA 2026.1 EAP 3: Recycle Bin Deletions, AI Boosts, and Git Worktree Support

The 2026.1 EAP 3 release of IntelliJ IDEA introduces several practical updates, including moving deleted files to the system recycle bin, deeper AI assistant integration with Roots and improved commands, automatic SQL dialect detection, enhanced Spring debugging, built‑in Git Worktree support, UI refinements, and numerous bug fixes across Java, Kotlin, Docker, and HTTP client features.

AI assistantGit worktreeIDE
0 likes · 9 min read
IntelliJ IDEA 2026.1 EAP 3: Recycle Bin Deletions, AI Boosts, and Git Worktree Support
java1234
java1234
Feb 10, 2026 · Fundamentals

Understanding Java Reflection: Core Concepts, Use Cases, and Trade‑offs

This article explains Java's reflection mechanism, covering its main uses such as dynamic class loading, handling unknown types, accessing private members, and framework development, then walks through basic steps, a complete code example, and discusses its advantages and drawbacks.

JavaPerformanceReflection
0 likes · 6 min read
Understanding Java Reflection: Core Concepts, Use Cases, and Trade‑offs
JakartaEE China Community
JakartaEE China Community
Feb 9, 2026 · Backend Development

Eclipse Foundation Unveils Jakarta EE 11 with Simplified Data Access and Cloud‑Native Enhancements

The Eclipse Foundation announced Jakarta EE 11, highlighting streamlined data access via the new Jakarta Data spec, support for Java 21 including virtual threads, modernized testing tools, deprecation of Managed Beans, and early certification of several enterprise servers, marking a major step toward cloud‑native Java development.

Enterprise JavaJakarta DataJava
0 likes · 6 min read
Eclipse Foundation Unveils Jakarta EE 11 with Simplified Data Access and Cloud‑Native Enhancements
Java Tech Enthusiast
Java Tech Enthusiast
Feb 8, 2026 · Fundamentals

Detecting Powers of Two in Java: Bitwise Tricks and Edge Cases

The author shares a workplace frustration about unfair performance metrics, then illustrates how a hidden 1024‑byte boundary bug led to a discussion of the classic “power‑of‑two” problem, providing clear bit‑wise logic, edge‑case handling, and ready‑to‑run Java code for detecting powers of two.

JavaPower of Twoalgorithm
0 likes · 6 min read
Detecting Powers of Two in Java: Bitwise Tricks and Edge Cases
Java Architect Handbook
Java Architect Handbook
Feb 8, 2026 · Backend Development

How to Resolve RocketMQ Message Backlog: Diagnosis, Immediate Fixes, and Long‑Term Prevention

This article breaks down the interview focus points, core solution framework, underlying RocketMQ mechanisms, step‑by‑step remediation actions, common pitfalls, and a concluding strategy for handling message backlog through emergency scaling, consumer optimization, degradation, dead‑letter handling, and proactive capacity planning.

JavaMessage QueueOperations
0 likes · 9 min read
How to Resolve RocketMQ Message Backlog: Diagnosis, Immediate Fixes, and Long‑Term Prevention
SpringMeng
SpringMeng
Feb 8, 2026 · Backend Development

Why Companies Still Stick with JDK 8 Even Though JDK 25 Is Released

The article analyzes why many enterprises continue using JDK 8 despite newer releases like JDK 25, examining compatibility issues, stability, learning costs, third‑party library support, performance trade‑offs, commercial licensing, and toolchain considerations while offering migration guidance.

JDKJavaLTS
0 likes · 22 min read
Why Companies Still Stick with JDK 8 Even Though JDK 25 Is Released
java1234
java1234
Feb 7, 2026 · Backend Development

Why Service Layer Should Not Return a Result Object in Java

The article explains why returning a generic Result wrapper from a Java service layer breaks responsibility separation, harms reusability, complicates exception handling and testing, and obscures transaction boundaries, advocating for returning pure domain objects instead.

Domain-Driven DesignJavaResult Object
0 likes · 13 min read
Why Service Layer Should Not Return a Result Object in Java
Java Architect Handbook
Java Architect Handbook
Feb 7, 2026 · Backend Development

Master AsyncTask Orchestration in Spring Boot with asyncTool

This guide explains how to integrate the asyncTool library into a Spring Boot project, configure custom thread pools, understand core interfaces like IWorker and ICallback, and use the provided Builder API to define serial, parallel, and mixed task flows with detailed code examples and best‑practice cautions.

Backend DevelopmentJavaSpring Boot
0 likes · 13 min read
Master AsyncTask Orchestration in Spring Boot with asyncTool
Java Companion
Java Companion
Feb 7, 2026 · Backend Development

Why Should the Service Layer in Java Not Return a Result Object Directly?

The article explains that returning a Result wrapper from the Service layer mixes business logic with presentation concerns, leading to tighter coupling, reduced reusability, cumbersome error handling, harder testing, poorer DDD alignment, limited interface flexibility, and ambiguous transaction boundaries.

Domain-Driven DesignJavaResult Wrapper
0 likes · 11 min read
Why Should the Service Layer in Java Not Return a Result Object Directly?
Coder Trainee
Coder Trainee
Feb 6, 2026 · Mobile Development

Detecting Audio, Video, and Image Content Risks in WeChat Mini Programs

This article walks through using the WeChat Mini Program media‑check API to identify risky audio, video, and image content, outlines three typical scenarios, explains platform rate limits, and provides a complete Java example with step‑by‑step code analysis.

Audio DetectionImage ModerationJava
0 likes · 4 min read
Detecting Audio, Video, and Image Content Risks in WeChat Mini Programs
Java Backend Technology
Java Backend Technology
Feb 6, 2026 · Backend Development

What Breaking Changes Does Jackson 3 Introduce When Upgrading Spring Boot 4?

Upgrading to Spring Boot 4 brings Jackson 3, which reorganizes packages, replaces ObjectMapper with JsonMapper, changes the default date format to ISO‑8601, and converts checked exceptions to RuntimeException, requiring developers to adapt code, adjust configurations, and understand the design rationale to avoid runtime bugs.

API changesJackson 3Java
0 likes · 6 min read
What Breaking Changes Does Jackson 3 Introduce When Upgrading Spring Boot 4?
Architecture Digest
Architecture Digest
Feb 5, 2026 · Backend Development

What Surprising Changes Await You When Upgrading to Jackson 3 in Spring Boot 4?

Upgrading to Spring Boot 4 brings Jackson 3, which introduces four major breaking changes—package reorganization, replacement of ObjectMapper with JsonMapper, a shift to ISO‑8601 date serialization, and the removal of checked exceptions—each explained with code examples, migration tips, and the rationale behind the design.

JavaSpring Bootdependency management
0 likes · 6 min read
What Surprising Changes Await You When Upgrading to Jackson 3 in Spring Boot 4?
Top Architect
Top Architect
Feb 5, 2026 · Backend Development

Boost Java Project Setup with a One‑Click Maven Multi‑Module Generation Plugin

This article explains how a custom IntelliJ IDEA plugin can automate the creation of Maven multi‑module projects, turning a tedious half‑hour manual process into a 30‑second one‑click operation, and provides step‑by‑step installation, usage, customization, and troubleshooting guidance.

Build ToolsIntelliJ IDEAJava
0 likes · 12 min read
Boost Java Project Setup with a One‑Click Maven Multi‑Module Generation Plugin
Coder Trainee
Coder Trainee
Feb 5, 2026 · Backend Development

How to Retrieve the access_token for a WeChat Mini Program

This article explains why a WeChat Mini Program needs an access_token, describes the token's 7200‑second validity, and provides a step‑by‑step Java implementation that builds the request URL, sends an HTTPS GET, parses the JSON response, and outlines a simple caching strategy.

API authenticationAccess TokenHTTPS GET
0 likes · 3 min read
How to Retrieve the access_token for a WeChat Mini Program
Java Backend Technology
Java Backend Technology
Feb 5, 2026 · Backend Development

Why Your Spring @Transactional May Fail and How to Fix It

This article explains the common reasons Spring transactions become ineffective or fail to roll back—such as wrong method visibility, final modifiers, self‑invocation, non‑Spring beans, multithreading, unsupported table engines, misconfigured propagation, swallowed exceptions, and improper rollback settings—while providing practical code solutions and best‑practice recommendations.

AOPJavaSpring
0 likes · 20 min read
Why Your Spring @Transactional May Fail and How to Fix It
java1234
java1234
Feb 5, 2026 · Backend Development

Convert DOCX to PDF in Spring Boot with docx4j: A Lightweight Open‑Source Solution

This article walks through building a pure‑Java DOCX‑to‑PDF converter in Spring Boot using docx4j, compares it with alternatives, shows Maven dependencies, provides a utility class and controller example, and explains how to resolve Chinese font garbling on both Windows and Linux.

JavaPDF conversionSpring Boot
0 likes · 11 min read
Convert DOCX to PDF in Spring Boot with docx4j: A Lightweight Open‑Source Solution
Java Architecture Diary
Java Architecture Diary
Feb 5, 2026 · Backend Development

How Spring Debugger Enables Agent‑Free Remote Debugging of Java Apps

The article explains how JetBrains' Spring Debugger plugin provides remote debugging for Spring applications without using Java agents, detailing the underlying thread‑model tricks, supported containers, practical features like bean inspection and SQL execution, and step‑by‑step JDWP configuration.

IDE pluginJavaRemote Debugging
0 likes · 11 min read
How Spring Debugger Enables Agent‑Free Remote Debugging of Java Apps
Sohu Tech Products
Sohu Tech Products
Feb 4, 2026 · Backend Development

Why LiteFlow Is the Go‑to Rule Engine for Complex Business Logic

LiteFlow is a lightweight, open‑source Chinese rule engine that transforms tangled if‑else code into modular, hot‑deployable components using a simple EL DSL, offering high performance, multi‑language scripting, and visual orchestration for backend systems.

Component OrchestrationEL DSLHot Deployment
0 likes · 12 min read
Why LiteFlow Is the Go‑to Rule Engine for Complex Business Logic
Alibaba Cloud Native
Alibaba Cloud Native
Feb 4, 2026 · Artificial Intelligence

Boost Java Agent Performance with End‑to‑End Online Training Using Trinity‑RFT

This article explains how to overcome the training‑deployment gap for Java‑based AI agents by introducing a cloud‑native, low‑intrusion online training pipeline built on AgentScope Java and Trinity‑RFT, detailing architecture, configuration, custom selection and reward strategies, and showing measurable accuracy gains on a SQL‑Agent benchmark.

AgentJavaLLM
0 likes · 21 min read
Boost Java Agent Performance with End‑to‑End Online Training Using Trinity‑RFT
Alibaba Cloud Developer
Alibaba Cloud Developer
Feb 4, 2026 · Artificial Intelligence

Progressive Disclosure: Making Multi‑Skill LLM Agents Efficient and Scalable

This article examines the core challenge of giving large‑language‑model agents many abilities while keeping context size limited, compares three common loading strategies, introduces a progressive‑disclosure skill mechanism with three loading layers, and details its implementation, benefits, limitations, and suitable use cases in AgentScope‑Java.

AgentContext ManagementJava
0 likes · 17 min read
Progressive Disclosure: Making Multi‑Skill LLM Agents Efficient and Scalable
IT Services Circle
IT Services Circle
Feb 4, 2026 · Interview Experience

How to Verify Alien Dictionary Order Efficiently (LeetCode 953)

This article first presents a quirky roundup of Chinese companies' record‑breaking year‑end bonuses, then shifts to a detailed explanation of LeetCode problem 953, describing how to determine whether a list of words is sorted according to a custom alien alphabet using both full‑array sorting and an optimized pairwise comparison approach, complete with Java code.

AlienDictionaryJava
0 likes · 8 min read
How to Verify Alien Dictionary Order Efficiently (LeetCode 953)
Top Architect
Top Architect
Feb 4, 2026 · Backend Development

Build a Robust Asynchronous Processing SDK with Spring, Kafka and MySQL

This article introduces a generic asynchronous processing SDK for Java back‑ends, explaining its design principles, advantages, component architecture, database schema, configuration via Apollo, usage steps, and practical demonstrations, while providing complete code snippets and a GitHub repository for reference.

JavaKafkaSpring
0 likes · 12 min read
Build a Robust Asynchronous Processing SDK with Spring, Kafka and MySQL
Shepherd Advanced Notes
Shepherd Advanced Notes
Feb 4, 2026 · Backend Development

Mastering Java Code Comments: The Ultimate Guide to High‑Quality, Readable, Architecture‑Level Documentation

The article explains why high‑quality Javadoc is essential for enterprise‑level Java backend projects, walks through the most common Javadoc tags and HTML elements, provides concrete code examples—including @param, @return, @throws, @see, @deprecated—and shows how thorough comments improve readability, maintainability, and serve as a catalyst for refactoring.

Backend DevelopmentBest PracticesJava
0 likes · 14 min read
Mastering Java Code Comments: The Ultimate Guide to High‑Quality, Readable, Architecture‑Level Documentation
Java Architect Handbook
Java Architect Handbook
Feb 3, 2026 · Backend Development

Speeding Up 100k MySQL Inserts: From 5 Minutes to 3 Seconds in Java

This article walks through a real‑world data‑migration case where 100,000 rows were moved from an old system to a new one, showing how naive per‑row inserts took five minutes and how a series of optimizations—batch SQL, JDBC batch mode, and multithreaded parallelism—reduced the runtime to just three seconds, while also covering common pitfalls and the final high‑performance implementation.

Batch InsertJDBCJava
0 likes · 11 min read
Speeding Up 100k MySQL Inserts: From 5 Minutes to 3 Seconds in Java
macrozheng
macrozheng
Feb 3, 2026 · Backend Development

Long vs BigDecimal for Money: 10 Community Perspectives

The article explores the common dilemma of choosing between Long and BigDecimal for monetary values, summarizing ten distinct community suggestions ranging from using Long, BigDecimal, String, Protobuf, custom types, leadership advice, AI assistance, to minimalist integer approaches.

BigDecimalData TypesJava
0 likes · 4 min read
Long vs BigDecimal for Money: 10 Community Perspectives
JakartaEE China Community
JakartaEE China Community
Feb 3, 2026 · Backend Development

Converting a Spring Boot Project to Helidon with AI

The author builds a lightweight Spring Pets test suite, evaluates three AI‑assisted migration strategies—contextual, incremental and hybrid—using OpenAI GPT‑4o, reports conversion coverage, performance, cost and practical challenges, and shares open‑source tooling for future Java framework migrations.

AI migrationGPT-4oHelidon
0 likes · 13 min read
Converting a Spring Boot Project to Helidon with AI
java1234
java1234
Feb 3, 2026 · Backend Development

Boost API Latency 10× with Spring Boot 3 and a Local Cache Pyramid

The article demonstrates how to achieve a ten‑fold reduction in API response time by building a three‑level cache pyramid (Caffeine L1, Redis L2, DB L3) in Spring Boot 3, covering dependencies, configuration, core template code, warm‑up, monitoring, load‑test results and common high‑concurrency pitfalls.

CacheCaffeineJava
0 likes · 8 min read
Boost API Latency 10× with Spring Boot 3 and a Local Cache Pyramid
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Feb 3, 2026 · Backend Development

Master Java Reflection with the Reflector Library: Real‑World Examples

This article introduces the Reflector library—a comprehensive Java reflection utility—covers its core features, shows how to download it from GitHub, and provides step‑by‑step code examples for accessing private fields, invoking methods, creating instances, handling annotations, copying objects, and more, all with expected output.

JavaReflectionReflector
0 likes · 9 min read
Master Java Reflection with the Reflector Library: Real‑World Examples
Ray's Galactic Tech
Ray's Galactic Tech
Feb 2, 2026 · Backend Development

How to Build and Operate a Unified Java Message Push Platform with Austin

This guide walks you through the purpose, core capabilities, environment setup, deployment options, channel configuration, template creation, API usage, troubleshooting, and architectural benefits of the Java‑based Austin unified message push platform for enterprise systems.

JavaMessage PushNotification Platform
0 likes · 10 min read
How to Build and Operate a Unified Java Message Push Platform with Austin
Code Ape Tech Column
Code Ape Tech Column
Feb 2, 2026 · Backend Development

Mastering Spring Parameter Validation: A Flexible SpEL‑Based Validator

This article introduces a powerful, extensible Spring validation component built on SpEL that handles simple annotations, enum checks, multi‑field logic, and Spring Bean integration, providing step‑by‑step setup, usage examples, custom constraints, and performance considerations for Java backend developers.

JavaSpELSpring
0 likes · 11 min read
Mastering Spring Parameter Validation: A Flexible SpEL‑Based Validator
Java Architecture Diary
Java Architecture Diary
Feb 2, 2026 · Artificial Intelligence

Why a 10‑Year‑Old Java JSON Library Is Now Targeting LLMs with TOON

json-io, a decade‑old Java JSON library known for zero‑config, circular‑reference support, and lightweight size, has added full TOON (Token‑Oriented Object Notation) read/write capabilities, a token‑efficient format designed for LLMs that can cut serialization costs by 30‑60% and integrates seamlessly with Spring Boot and Spring AI.

AIJavaLLM
0 likes · 9 min read
Why a 10‑Year‑Old Java JSON Library Is Now Targeting LLMs with TOON
macrozheng
macrozheng
Feb 2, 2026 · Fundamentals

Master Java Generics: Boost Type Safety and Reduce Casting

This article explains the motivation behind Java generics, their benefits such as compile‑time type checking and reduced casting, and provides concrete examples including generic classes, interfaces, collections, inheritance, custom generic methods, and common pitfalls, illustrated with code snippets and diagrams.

CollectionsJavagenerics
0 likes · 9 min read
Master Java Generics: Boost Type Safety and Reduce Casting
Architect's Guide
Architect's Guide
Feb 2, 2026 · Backend Development

Boost Your Java Development: Must‑Have IntelliJ IDEA Plugins for 2025

This guide reviews essential IntelliJ IDEA plugins for Java/Spring developers, covering their core features, installation steps, configuration tips, performance trade‑offs, and visual enhancements, helping you streamline workflow, reduce boilerplate, and improve code navigation in 2025.

IntelliJ IDEAJavaPlugins
0 likes · 12 min read
Boost Your Java Development: Must‑Have IntelliJ IDEA Plugins for 2025
java1234
java1234
Jan 31, 2026 · Backend Development

How to Perform Transaction Processing in RabbitMQ with Java

RabbitMQ supports transactional messaging to guarantee atomic delivery, using txSelect to start, txCommit to finalize, and txRollback to abort; this article explains the mechanism, outlines its advantages and performance drawbacks, and provides a complete Java example with step‑by‑step code walkthrough.

JavaMessage QueueRabbitMQ
0 likes · 5 min read
How to Perform Transaction Processing in RabbitMQ with Java
java1234
java1234
Jan 31, 2026 · Interview Experience

Why Detailed Interview Questions Often Lead to No Follow‑Up

The article explains that big‑tech firms ask deep, “onion‑layer” questions to gauge a candidate’s potential and thinking ability, while smaller companies focus on detailed, practical queries to confirm immediate competence, and mismatches between these expectations often cause interview silence.

Career AdviceGrowth PotentialJava
0 likes · 12 min read
Why Detailed Interview Questions Often Lead to No Follow‑Up
Java Baker
Java Baker
Jan 31, 2026 · Backend Development

Mastering Gray Releases and A/B Testing: Strategies, Code, and Analytics

This article provides a comprehensive guide to gray releases and A/B testing, covering common scenarios, implementation methods, layered experiment design, hash-based bucket allocation, data collection workflows, statistical analysis, and practical Java and SQL code examples for reliable feature validation.

A/B testingBackend DevelopmentJava
0 likes · 11 min read
Mastering Gray Releases and A/B Testing: Strategies, Code, and Analytics
Java Tech Enthusiast
Java Tech Enthusiast
Jan 31, 2026 · Interview Experience

How a NASA Lisp Expert Built Google AdWords While Flying to Work

This article recounts Ron Garrett’s unlikely journey from NASA’s JPL to Google, his weekly plane commute, the chaotic development of the first AdWords system using Java and JSP, the billing bugs he faced, and how his work became the foundation of Google’s multibillion‑dollar advertising empire.

AdWordsGoogleJSP
0 likes · 11 min read
How a NASA Lisp Expert Built Google AdWords While Flying to Work
Java Architect Handbook
Java Architect Handbook
Jan 31, 2026 · Interview Experience

Why Deep Interview Questions Often Lead to Silence and How to Answer Them

The article analyzes why interviewers at large tech firms ask increasingly detailed questions that may end without feedback, contrasts this with small‑company interview tactics, explains the mismatch, and offers concrete strategies for Java developers to handle such “soul‑crushing” queries effectively.

BigCompanyCareerAdviceInterviewStrategy
0 likes · 13 min read
Why Deep Interview Questions Often Lead to Silence and How to Answer Them
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Jan 30, 2026 · Backend Development

How Java Virtual Threads Cut Latency by 31× and Slash CPU Use in Production

This article explains the principles of Java virtual threads, compares them with traditional platform threads, details RedJDK21’s implementation and performance improvements—including up to 31‑fold latency reduction and 24% CPU savings—in large‑scale services at XiaoHongShu, and discusses migration challenges, lock handling, monitoring, and future roadmap.

JVMJavaPerformance Optimization
0 likes · 29 min read
How Java Virtual Threads Cut Latency by 31× and Slash CPU Use in Production
macrozheng
macrozheng
Jan 30, 2026 · Backend Development

Why MyBatis Triggers OutOfMemoryError and How to Fix It

The article examines a production OutOfMemoryError caused by MyBatis SQL construction, explains heap and metaspace exhaustion, analyzes MyBatis source code, reproduces the issue with JVM settings, and offers practical recommendations to prevent similar memory failures.

JavaMemoryLeakMyBatis
0 likes · 7 min read
Why MyBatis Triggers OutOfMemoryError and How to Fix It
java1234
java1234
Jan 30, 2026 · Backend Development

How to Reduce MyBatis Batch Insert from 5 Minutes to 3 Seconds? Three Key Optimizations

The article walks through three concrete optimizations—batch SQL, JDBC batch mode with rewriteBatchedStatements, and multithreaded parallel inserts—that shrink a 100,000‑row MyBatis insertion from five minutes to three seconds, while highlighting configuration details, performance gains, and common pitfalls.

Batch InsertJDBCJava
0 likes · 10 min read
How to Reduce MyBatis Batch Insert from 5 Minutes to 3 Seconds? Three Key Optimizations
Java Companion
Java Companion
Jan 29, 2026 · Backend Development

How to Cut MyBatis Batch Insert Time from 5 Minutes to 3 Seconds: Three Key Optimizations

The article walks through turning a naïve MyBatis loop that took five minutes to insert 100,000 rows into a high‑performance solution that finishes in three seconds by applying batch SQL, JDBC batch mode with rewriteBatchedStatements, and multithreaded parallel execution, while highlighting pitfalls and best‑practice configurations.

Batch InsertExecutorType.BATCHJDBC
0 likes · 9 min read
How to Cut MyBatis Batch Insert Time from 5 Minutes to 3 Seconds: Three Key Optimizations
SpringMeng
SpringMeng
Jan 29, 2026 · Fundamentals

Stop Over‑Encapsulating: How Bad Encapsulation Leads to Hidden Bugs

The article analyzes three harmful forms of improper encapsulation—over‑encapsulation, fake encapsulation, and chaotic encapsulation—illustrates each with Java code examples, explains the resulting development inefficiencies, extensibility issues, and debugging difficulties, and offers concrete principles to avoid these pitfalls.

EncapsulationJavacode quality
0 likes · 12 min read
Stop Over‑Encapsulating: How Bad Encapsulation Leads to Hidden Bugs
java1234
java1234
Jan 29, 2026 · Fundamentals

When Over‑Encapsulation Breaks Your Code: Real‑World Pitfalls and Fixes

The article analyzes three common forms of bad encapsulation in Java—over‑encapsulation, false encapsulation, and chaotic encapsulation—illustrates their hidden risks with concrete code examples, and offers practical principles to restore clear responsibilities, minimal interfaces, and flexible design.

EncapsulationJavacode quality
0 likes · 13 min read
When Over‑Encapsulation Breaks Your Code: Real‑World Pitfalls and Fixes