The Toolchains Plugins allows to share configuration across plugins. For example to make sure the plugins like compiler, surefire, javadoc, webstart etc. all use the same JDK for execution.

Guava is a suite of core and expanded libraries that include utility classes, Google's collections, I/O classes, and much more.

Joda-Time provides a quality replacement for the Java date and time classes. Note that from Java SE 8 onwards, users are asked to migrate to java.time (JSR-310) - a core part of the JDK which replaces this project.

HikariCP is a 'zero-overhead' production ready JDBC connection pool.

Reload4j revives EOLed log4j 1.x

Guava testlib is a set of java classes used for more convenient unit testing - particularly to assist the tests for Guava itself.

JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be navigated using the Visitor Pattern.

A embedded mongodb ...

Minimal set of interface definitions for Java support in AWS Lambda

The JaCoCo Maven Plugin provides the JaCoCo runtime agent to your tests and allows basic report creation.

Library to convert Objects to and from String, compatible with Java 21+