Apache Commons Lang, a package of Java utility classes for the classes that are in java.lang's hierarchy, or are considered to be so standard as to justify existence in java.lang. The code is tested using the latest revision of the JDK for supported LTS releases: 8, 11, 17, 21 and 25 currently.

The Apache Commons Codec component contains encoders and decoders for formats such as Base16, Base32, Base64, digest, and Hexadecimal. In addition to these widely used encoders and decoders, the codec package also maintains a ...

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.

API 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.

The Apache Log4j SLF4J API binding to Log4j 2 Core

Fastjson is a JSON processor (JSON parser + JSON generator) written in Java

Core classes of Apache Maven to manage the building process.

The Commons Text library provides additions to the standard JDK text handling. It includes algorithms for string similarity and for calculating the distance between strings.

Caffeine is a high performance, near optimal caching library. It provides an in-memory cache using a Google Guava inspired API.

Interface and implementation of Maven Artifact model

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