A plugin to allow execution of system and Java programs

Standard library for the Kotlin Programming Language

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

Implementation for Apache Log4J, a highly configurable logging tool that focuses on performance and low garbage generation. It has a plugin architecture that makes it extensible and supports asynchronous logging based on LMAX Disruptor.

scala-library-bootstrapped

fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists, and queues with a small memory footprint and fast access and insertion; it provides also big (64-bit) arrays, sets and lists, sorting algorithms, fast, ...

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.

FreeMarker is a "template engine"; a generic tool to generate text output based on templates.

Apache Hadoop Common

Core libraries for Apache Spark, a unified analytics engine for large-scale data processing.