java-dev

Comprehensive Java development skill based on the Alibaba Java Coding Guidelines (Songshan Edition). Use when writing, reviewing, or refactoring Java code to ensure compliance with industry best practices. Triggers on: (1) writing new Java code (.java files), (2) reviewing existing Java code, (3) refactoring Java projects, (4) database design with MySQL, (5) API design and implementation, (6) unit testing, (7) concurrent programming, (8) security implementation, or any Java development tasks requiring adherence to coding standards.