http://stackoverflow.com/questions/7943034/netbeans-7-x-and-subversion-1-7-1
http://netbeans.org/projects/versioncontrol/pages/Subversion1_7
Open up your PogramFiles/NetBeans folder, look for etc/netbeans.conf, and then, on the netbeans_default_options line inside the quotes, add -J-DsvnClientAdapterFactory=commandline. This tells NetBeans to use the command line SVN rather than the plugin.
huypv | C:\Windows\system32\cmd.exe
>svn --version
svn, version 1.7.5 (r1336830)
compiled May 11 2012, 02:21:17