The Apache Commons FileUpload component provides a simple yet flexible means of adding support for multipart file upload functionality to servlets and web applications.

Commons Database Connection Pooling

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

Alternate implementations of JDK's "Math" functions.

The Math project is a library of lightweight, self-contained mathematics and statistics components addressing the most common practical problems not immediately available in the Java programming language or commons-lang.

Jexl is an implementation of the JSTL Expression Language with extensions.

The Apache Commons Discovery component is about discovering, or finding, implementations for pluggable interfaces.

Collection of reusable (not depending on any other KIE Soup module) components for KIE Soup.

Commons VFS

Causes JAXB RI 2.1.8 XJC to generate additional methods that allows method chaining. Method chaining is useful when building object tree in memory, allowing the code to be done in a concise way.