Alibaba Java Coding Guidelines · johnrothan bundle Alibaba Java Development Manual (Huangshan Edition) coding standards. Use this skill whenever you write, review, refactor, or evaluate any Java code — covering naming conventions, constant definitions, code formatting, OOP rules, date/time, collection handling, concurrency and multithreading, control statements, comments, exception handling, logging, unit testing, security, MySQL table/index/SQL/ORM design, and application-layering project structure. Whether or not the user explicitly mentions "Alibaba spec / P3C / Huangshan / development manual", proactively apply the rules and severity levels here for any task that produces or vets Java code (e.g. "write a Java class / Service / DAO", "review this Java", "is this code compliant?", "create a MySQL table", "help me name this", "handle exceptions and logging").
