Apache Commons Project Distributions

The most recent source and binary releases for the Apache Commons project are available from this directory listing. For older releases, please use the archives.

Important Notices

Icon  Name                                 Last modified      Size  Description
[DIR] Parent Directory - [CMP] commons-collections-3.2.2-src.tar.gz 14-Nov-2015 15:10 616K GZIP compressed docume> [   ] commons-collections-3.2.2-src.zip 14-Nov-2015 15:10 1.2M [CMP] commons-collections4-4.1-src.tar.gz 07-Feb-2019 17:29 688K GZIP compressed docume> [   ] commons-collections4-4.1-src.zip 07-Feb-2019 17:29 1.3M [CMP] commons-collections4-4.2-src.tar.gz 12-Jul-2018 00:13 678K GZIP compressed docume> [   ] commons-collections4-4.2-src.zip 12-Jul-2018 00:13 1.3M [CMP] commons-collections4-4.4-src.tar.gz 09-Jul-2019 05:22 687K GZIP compressed docume> [   ] commons-collections4-4.4-src.zip 09-Jul-2019 05:22 1.3M

Commons-COLLECTIONS4 v4.4.

This is the 4.4 version of commons-collections4. It is available in both binary and source distributions.

Note: The tar files in the distribution use GNU tar extensions and must be untarred with a GNU compatible version of tar. The version of tar on Solaris and Mac OS X will not work with these files


The changes in this release are detailed in the release notes.

Thank you for using COLLECTIONS4.

From the Apache Commons Project

Download from your nearest mirror site!

Do not download from www.apache.org. Please use a mirror site to help us save apache.org bandwidth. Go here to find your nearest mirror.


Many of the files have been digitally signed using GnuPG. If so, there will be an accompanying file.asc signature file in the same directory as the file (binaries/ or source/). The signing keys can be found in the distribution directory at <http://www.apache.org/dist/commons/KEYS>.

Always download the KEYS file directly from the Apache site, never from a mirror site.

Always test available signatures, e.g.,
$ pgpk -a KEYS
$ pgpv commons-collections4-4.4-bin.tar.gz.asc
$ pgp -ka KEYS
$ pgp commons-collections4-4.4-bin.tar.gz.asc
$ gpg --import KEYS
$ gpg --verify commons-collections4-4.4-bin.tar.gz.asc