Nightly build artifacts are provided purely for test purposes and are NOT official releases of the Apache Software Foundation.
Builds
Nightly builds are built once a day from the current SVN HEAD, and can be found at http://people.apache.org/builds/jakarta-commons/nightly/commons-logging.
Maven 2.x
The nightly build is also deployed to the apache maven2 snapshot repository at http://people.apache.org/repo/m2-snapshot-repository .
Build Logs
If the nightly build has failed, then further information can be found in the build logfiles