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 IO library contains utility classes, stream implementations, file filters, file comparators, endian transformation 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.

Rich and fluent assertions for testing in Java

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

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 ...

Apache Commons Logging is a thin adapter allowing configurable bridging to other, well-known logging systems.

The Apache Maven Javadoc Plugin is a plugin that uses the javadoc tool for generating javadocs for the specified project.

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

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 2.0 API binding to Log4j 2 Core