Antelink just launched a service that monitors the rate of reuse of open source libraries within a large set of open source projects. This free service is a byproduct of their R&D activity and is based on a large sample including more than 162.000 projects, from SourceForge and GoogleCode. It covers projects from the very beginning of open source history till up to now, without filtering
based on technologies.
According to their research, 3% of all the open source software ever created uses the Apache Commons libraries.
Also according to their research, here are the top five most reused components from Apache Commons:
* Logging: Wrapper around a variety of logging API implementations.
* Collections: Extends or augments the Java Collections Framework.
* Lang: Provides extra functionality for classes in java.lang.
* BeanUtils: Easy-to-use wrappers around the Java reflection and introspection APIs.
* Httpclient: HttpClient is a HTTP/1.1 compliant HTTP agent implementation based on HttpCore (Httpclient is now an independent
Most Reused Apache Components, According to Antelink