Java

This skill provides setup instructions for Eclipse JDT.LS, a Java language server that enables code intelligence, refactoring, and enhanced editing support for .java files in Claude Code. Requires Java 17+ and manual jdtls installation.

This skill provides AI assistants with deep knowledge about the Addax open-source ETL tool. It covers the project's architecture, plugin system for 20+ data sources (MySQL, PostgreSQL, MongoDB, Kafka, HDFS, etc.), job configuration format, data transformation capabilities, and development guidelines for building custom reader/writer plugins.

Provides comprehensive Android Java development guidance covering MVVM architecture, ViewBinding patterns, Activity/Fragment lifecycle management, unit testing with Mockito, instrumentation testing with Espresso, and GitHub Actions CI/CD configuration. Includes best practices for avoiding common Android anti-patterns like memory leaks and context leaks.