International Components for Unicode for Java (ICU4J) is a mature, widely used Java library

The Apache Commons Collections package contains types that extend and augment the Java Collections Framework.

Apache Commons Lang, a package of Java utility classes for the classes that are in java.lang's hierarchy, or are ...

The ActiveMQ Message Broker implementation

The ActiveMQ Message Broker implementation

A high performance IO abstraction framework

Jakarta Messaging describes a means for Java applications to create, send,

Core module of Apache Velocity, a Java-based template engine for generating text output.

xbean-spring provides a schema-driven proprietary namespace handler for spring contexts

Java library which enables encryption in java apps with minimum effort.

JUnit Jupiter is the API for writing tests using JUnit 5.