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ProgramPublishing Your Own Open Source Project to Maven Central
A step-by-step guide to open-sourcing a Java project and publishing it to Maven Central using Sonatype OSSRH.
Java
17 posts
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ProgramJava Multithreading Explained: Concepts, Lifecycle, and Thread Pools
A comprehensive guide to Java multithreading, covering thread fundamentals, lifecycle, synchronization, and thread pool design.
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ProgramKafka Overview: Architecture, Components, and Internals
An overview of Apache Kafka, covering its architecture, core components, and internal mechanisms based on Kafka 2.4.
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ProgramRocketMQ Overview: Architecture, Components, and Message Flow
An in-depth overview of Apache RocketMQ, covering its core features, NameServer, Broker, Client internals, and message storage.
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ProgramTroubleshooting a Gradle Build Failure: Missing DoNotMock
A real-world case study of diagnosing and fixing a Gradle build failure caused by dependency conflicts in error_prone_annotations.
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ProgramDiagnosing CPU Spikes Caused by Tomcat Hot Deployment
A real-world troubleshooting guide to identifying and fixing abnormal CPU spikes caused by Tomcat hot reload behavior in production.
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ProgramDiagnosing Slow Response Issues in Production Systems
A real-world incident analysis of slow responses in a WeChat platform, covering concurrency spikes, Tomcat limits, and database bottlenecks.
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ProgramHandling OutOfMemoryError Issues in JasperReports
Practical strategies for diagnosing and mitigating OutOfMemoryError problems when exporting large PDFs with JasperReports.
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Side ProjectBuilding a Java SDK for the WeChat Official Account Platform
A comparison of existing Java WeChat SDKs and the design and implementation of a custom WeChat Official Account SDK.
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ProgramTroubleshooting High CPU Usage in Production Java Applications
A systematic approach to diagnosing and resolving high CPU usage issues in production Java systems, based on real-world experience.
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Side ProjectEvaluating Open Source Java B2C E-commerce Systems
A practical evaluation of open source Java-based B2C e-commerce platforms, including Shopizer, Broadleaf Commerce, and Mayocat.
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ProgramFeign Basics: Building Elegant Java HTTP Clients
A practical introduction to Feign, covering core concepts, usage patterns, and integrations for building clean Java HTTP clients.
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ProgramHashMap Source Code Analysis: Capacity, Load Factor, and Resize
A deep dive into the JDK 7 HashMap implementation, explaining capacity calculation, load factor, and resize behavior.
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ProgramJAVA并发编程: CAS和AQS
说起JAVA并发编程，就不得不聊聊CAS(Compare And Swap)和AQS了()。 --- > CAS(Compare And Swap)，即比较并交换。是解决多线程并行情况下使用锁造成性能损耗的一种机制，CAS操作包含三个操作数——内存位置（V）、预期原值（A）和新值(B)。如果内存位置...
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ProgramJava Concurrency Fundamentals: CAS and AQS Explained
An in-depth explanation of CAS (Compare-And-Swap) and AQS (AbstractQueuedSynchronizer), the foundation of Java concurrent programming.
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ProgramLock vs Synchronized in Java: When and Why to Use Each
A detailed comparison of Java's synchronized keyword and the Lock API, explaining their differences, use cases, and best practices.
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InterviewJava Interview Preparation Notes
A structured collection of Java interview topics covering collections, concurrency, JVM, databases, distributed systems, and troubleshooting.