光 HikariCP・A solid, high-performance, JDBC connection pool at last.
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Vert.x is a tool-kit for building reactive applications on the JVM
Java dataframe and visualization library
Simple API, Complex Emails (Jakarta Mail smtp wrapper)
HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support
High performance JVM JSON library
Java Collections till the last breadcrumb of memory and performance
Zero-allocation hashing for Java
binary serialization format
Universal, flexible, high-performance distributed ID generator. | 通用、灵活、高性能的分布式 ID 生成器
A fast object pool for the JVM
Read and write Excel (.xlsx, .xls), CSV, and ODS files in Java with one line of code. Annotation-based mapping, SAX streaming, built-in validation, 19 type converters, cell styling. A high-performance alternative to Apache POI.
Java importer skeleton for complicated, business-logic-heavy high-performance Neo4j imports directly from SQL databases, CSV files, etc.
A blueprint adapting VertX to distributed game server