Core utilities - zero dependency base library for JDK 25+

OpenCode Base PDF - Zero-dependency PDF processing library for creation, merge, split, form filling and digital signatures (JDK 25+)

OpenCode Base Pool - High-performance object pool for JDK 25+

OpenCode Base Rules - Lightweight business rule engine with DSL, decision tables and hot reload (JDK 25+)

Testing utilities for JDK 25+

Time series data utilities for JDK 25+

Tree data structure utilities for JDK 25+

Web utilities for JDK 25+

Lightweight XML processing component based on JDK built-in XML API, supporting DOM/SAX/StAX parsing, XPath queries, Bean binding, and XXE protection. 基于 JDK 内置 XML API 的轻量级 XML 处理组件，支持 DOM/SAX/StAX 解析、XPath 查询、Bean 绑定和 XXE 防护。

SMS messaging utilities for JDK 25+