| Components |
|
| BCEL |
Byte Code Engineering Library - analyze, create, and manipulate Java class files |
| BeanUtils |
Easy-to-use wrappers around the Java reflection and introspection APIs. |
| BSF |
Bean Scripting Framework - interface to scripting languages, including JSR-223 |
| CLI |
Command Line arguments parser. |
| Codec |
General encoding/decoding algorithms (for example phonetic, base64, URL). |
| Collections |
Extends or augments the Java Collections Framework. |
| Compress |
Defines an API for working with tar, zip and bzip2 files. |
| Configuration |
Reading of configuration/preferences files in various formats. |
| Crypto |
A cryptographic library optimized with AES-NI wrapping Openssl or JCE algorithm implementations |
| CSV |
Component for reading and writing comma separated value files. |
| Daemon |
Alternative invocation mechanism for unix-daemon-like java code. |
| DBCP |
Database connection pooling services. |
| DbUtils |
JDBC helper library. |
| Digester |
XML-to-Java-object mapping utility. |
| Email |
Library for sending e-mail from Java. |
| Exec |
API for dealing with external process execution and environment management in Java. |
| FileUpload |
File upload capability for your servlets and web applications. |
| Geometry |
Space and coordinates. |
| Imaging (previously called Sanselan) |
A pure-Java image library. |
| IO |
Collection of I/O utilities. |
| JCI |
Java Compiler Interface |
| JCS |
Java Caching System |
| Jelly |
XML based scripting and processing engine. |
| Jexl |
Expression language which extends the Expression Language of the JSTL. |
| JXPath |
Utilities for manipulating Java Beans using the XPath syntax. |
| Lang |
Provides extra functionality for classes in java.lang. |
| Logging |
Wrapper around a variety of logging API implementations. |
| Math |
Lightweight, self-contained mathematics and statistics components. |
| Net |
Collection of network utilities and protocol implementations. |
| Numbers |
Number types (complex, quaternion, fraction) and utilities (arrays, combinatorics). |
| Pool |
Generic object pooling component. |
| RNG |
Implementations of random numbers generators. |
| SCXML |
An implementation of the State Chart XML specification aimed at creating and maintaining a Java SCXML engine. It is capable of executing a state machine defined using a SCXML document, and abstracts out the environment interfaces. |
| Statistics |
Statistics. |
| Text |
Apache Commons Text is a library focused on algorithms working on strings. |
| Validator |
Framework to define validators and validation rules in an xml file. |
| VFS |
Virtual File System component for treating files, FTP, SMB, ZIP and such like as a single logical file system. |
| Weaver |
Provides an easy way to enhance (weave) compiled bytecode. |
