#java

Plinth is an AI-native engineering toolkit for the modern Java Enterprise SDLC, built around reusable Commands, Agents, Skills, and MCP Servers. You can use this project to provide an AI-native workflow to your Java Engineering teams, or just use it to refactor aspects of your project with one of the most popular Agent Skill collections for Java Enterprise development in marketplaces like Skills.sh...

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This is the second article in a series that tries to put a number on the value of Plinth's AI-native development workflow for Java. The Part 1 article showed the benchmark results across 4 scenarios: ScenarioWhat the agent gets scenario1A minimal README only — baseline, sparsest possible brief scenario2A full functional-requirements package: user story, Gherkin, OpenAPI, ADRs scenario3An OpenSp...

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Plinth is an AI-native engineering toolkit for modern Java enterprise SDLC, built around reusable Commands, Agents, Skills, and MCP Servers. This release focuses on two things. First, Plinth now treats specification as two explicit phases — Functional and Technical — with new commands and skills that turn a raw issue into agreed requirements and an approved design before any code gets written. Seco...

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The questions behind the benchmark During the last months, the project has evolved from a complete Skills folder for Java to provide an AI-native development workflow for Java, more or less this project lives in the Third generation (Systemp prompts -> Skills -> AI-Native development Workflow). During this time, any inquisitive user could ask for evidences about what is the real value using t...

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Plinth is an AI-native engineering toolkit for modern Java enterprise SDLC, built around reusable Commands, Agents, Skills, and MCP Servers. This release brings several improvements to the development workflow, but the most visible change is the new project identity: the repository moves from cursor-rules-java to plinth. Thanks to our community members in Urumqi, Singapore, Des Moines, Bengaluru, a...

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The hidden risk in fast code generation AI coding tools are very good at producing a complete-looking change from a short request. That is useful when the change is local. It becomes risky when the change crosses compatibility boundaries: database schemas, public APIs, event contracts, configuration keys, command outputs, generated artifacts, or workflows consumed by other services. A human enginee...

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Compliance as code The first article introduced the EU regulatory skill family and focused on broad digital regulation: AI systems, operational resilience, privacy, cybersecurity, product security, data access, online platforms, and digital markets. This second article explains the remaining regulation and ISO skills added for the future 0.17.0 release, and connects them to a more specialized idea:...

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What is the purpose? An opinionated, AI-native development workflow for Java Enterprise: reusable Skills, Agents, Commands, and third-party MCP servers combined with a human-in-the-loop model to modernize real-world SDLC practices. Starting with this release, the project introduces a simple way to describe any SDLC action through three phases: Plan, Build, and Operate. Software engineers can use th...

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Why this topic matters Modern Java Enterprise systems are no longer reviewed only for code quality, performance, and availability. Many systems now process personal data, call AI models, automate decisions, operate critical services, integrate with cloud providers, expose online platform workflows, or participate in digital markets. That means engineering teams need a practical way to translate reg...

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Discovering JFR: A Journey into Modern Java Profiling Excellence Symptom: memory usage drifts under real production load. Constraint: profiling cannot degrade latency or throughput. Solution: Java Flight Recorder (JFR) — the built‑in, low‑overhead recorder that captures CPU, memory, GC, I/O, and custom events from live systems with typically under 2% impact. With JFR, production evidence replaces g...

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Understanding Memory Leaks and Building Detection Infrastructure ⏱️ Duration: 2 hours 🎯 Learning Objectives: - Understand what memory leaks are and why they're critical in Java applications - Identify different types of memory leak patterns in enterprise applications - Explore the Spring Boot memory leak demo architecture - Set up automated profiling infrastructure with the 161-java-profiling-dete...

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🎯 Learning Objectives By the end of this module, you will: Master Maven best practices using automated Agent Skills Configure quality dependencies for enterprise-grade projects Generate professional documentation automatically Understand the fundamentals of AI-powered development workflows Apply Agent Skills effectively in real-world scenarios 📚 Module Overview Duration: 4 hours Difficulty: Beg...

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🎯 Master Java memory leak detection through the complete Detect → Analyze → Refactor → Verify workflow with the Spring Boot memory leak demo 📚 Course Structure Module 1: Foundations - 2 hours (Focus: Memory leak theory and setup; Key learning: Understanding leak patterns; profiling infrastructure) Module 2: Detect - 3 hours (Skill: 161-java-profiling-detect; Focus: Problem-driven data collectio...

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🎯 Course Overview Transform your Java development workflow by learning how to select, invoke, and combine Plinth's Java Agent Skills. The course uses progressive, hands-on exercises to improve Maven builds, design, testing, security, modern Java, performance, profiling, and documentation. Rather than treating a skill as a reusable prompt fragment, each module treats it as an executable workflow wi...

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🎯 Learning Objectives By the end of this module, you will: Select skills by engineering outcome instead of by familiar terminology Sequence skills so each phase produces trusted inputs for the next Distinguish independent checks that can run in parallel from dependent changes Preserve human decisions, repository constraints, and validation evidence Design a complete Java delivery workflow without...

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🎯 Learning Objectives By the end of this module, you will: Generate comprehensive project documentation using 170-java-documentation Create professional UML diagrams using 033-architecture-diagrams Master documentation-driven development practices Apply modular, step-based documentation approaches Create maintainable, professional documentation that scales with projects 📚 Module Overview Durati...

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Rigorous Before/After Analysis with 164-java-profiling-verify ⏱️ Duration: 1 hour 🎯 Learning Objectives: - Master the 164-java-profiling-verify Agent Skill for rigorous validation - Generate comprehensive before/after profiling comparisons - Create quantitative evidence of memory leak resolution - Document measurable performance improvements - Establish ongoing monitoring strategies for production...

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🎯 Learning Objectives By the end of this module, you will: Create JMeter performance tests using 151-java-performance-jmeter Profile applications comprehensively using 161-java-profiling-detect Analyze performance bottlenecks using 162-java-profiling-analyze Compare performance improvements using 164-java-profiling-verify Benchmark code with JMH for micro-optimizations Apply systematic performanc...

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Implementing Targeted Memory Leak Fixes with 163-java-profiling-refactor ⏱️ Duration: 2 hours 🎯 Learning Objectives: - Implement the prioritized solutions identified in Module 3 - Use only trusted, repository-owned profiling analysis as the basis for code changes - Understand the coco=false configuration pattern for immediate leak resolution - Understand proper resource lifecycle management patter...

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🎯 Learning Objectives By the end of this module, you will: Master Java Generics from basics to advanced patterns using 128-java-generics Apply functional programming techniques effectively using 142-java-functional-programming Implement functional exception handling with monads using 143-java-functional-exception-handling Leverage data-oriented programming with records and sealed types using 144-...

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Systematic Analysis with 162-java-profiling-analyze ⏱️ Duration: 2 hours 🎯 Learning Objectives: - Master the systematic analysis framework from the 162-java-profiling-analyze Agent Skill - Learn to categorize and prioritize performance issues using Impact/Effort scoring - Create structured documentation following professional templates - Develop cross-correlation analysis skills for multiple profi...

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🎯 Learning Objectives By the end of this module, you will: Implement security best practices using automated Agent Skills Handle concurrency safely with modern Java patterns Apply proper logging strategies for production applications Master exception handling techniques for robust applications Create secure, resilient code that follows industry standards 📚 Module Overview Duration: 4 hours Diff...

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Mastering the Interactive Profiling Script and Evidence Collection ⏱️ Duration: 3 hours 🎯 Learning Objectives: - Master the 161-java-profiling-detect Agent Skill and its 21 profiling options - Learn problem-driven profiling strategies for different performance issues - Understand flamegraph interpretation and visual analysis techniques - Generate comprehensive profiling evidence under realistic lo...

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🎯 Learning Objectives By the end of this module, you will: Generate comprehensive unit tests using Java Agent Skills Apply object-oriented design principles systematically Implement type-safe design patterns effectively Create maintainable, testable code following industry standards Understand the relationship between testing and good design 📚 Module Overview Duration: 5 hours Difficulty: Inter...

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Course Overview Transform your Java development skills with this comprehensive course on generics - one of Java's most powerful yet misunderstood features. This course takes you from basic type safety concepts to advanced patterns used in production systems and pairs the lessons with the 128-java-generics Agent Skill for guided code reviews and refactoring. 🎯 Learning Objectives By the end of this...

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📖 Module Overview Congratulations on reaching the final module! It's time to validate your Java Generics mastery through comprehensive challenges and code reviews. This module ensures you can apply generics effectively in real-world scenarios. 🎯 Learning Objectives By the end of this module, you will have: Demonstrated comprehensive understanding through coding challenges Applied all generics co...

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📖 Module Overview Time to apply your generics mastery to real-world scenarios! This module bridges theory and practice, showing how generics integrate with modern Java features and solve actual production problems. You'll work with contemporary patterns used in enterprise applications. 🎯 Learning Objectives By the end of this module, you will: Integrate generics with Records and sealed types Han...

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📖 Module Overview Welcome to the deep end of Java Generics! This module covers the most sophisticated patterns and edge cases that separate novice from expert generic programming. You'll understand how generics really work under the hood and master patterns used in production frameworks. 🎯 Learning Objectives By the end of this module, you will: Understand type erasure and its runtime implicatio...

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📖 Module Overview Welcome to the most powerful aspect of Java Generics! In this module, you'll master wildcards and the PECS principle to create flexible, reusable APIs that work with families of related types. This is where generics truly shine in real-world applications. 🎯 Learning Objectives By the end of this module, you will: Understand covariance, contravariance, and invariance in Java Mas...

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📖 Module Overview Welcome to the foundation of Java Generics! In this module, you'll discover why generics were introduced, understand the problems they solve, and learn the fundamental syntax that makes Java code safer and more expressive. 🎯 Learning Objectives By the end of this module, you will: Understand the core problems that generics solve Eliminate raw types from your code completely App...

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