DSpace currently has issues building with Maven 3.x
This has been noted in the DSpace Documentation at: https://wiki.duraspace.org/display/DSDOC/Installation#Installation-ApacheMaven2.2.x%28Javabuildtool%29
However, during the Developers Meeting on April 20, 2011, the DSpace Developers decided that we should resolve these Maven 3 issues for the DSpace 1.8.0 release.
More information about Maven 3 issues is available in this email thread from dspace-devel:
A similar thread about Maven 3 issues also appeared on dspace-tech: