I just finished to commit a bunch of resources files. Most of them are
for internal use and don't need to be know outside some Geotools modules
(namely CTS, GCS and SwingGUI). However, two packages contains
extensions of standards J2SE classes and may be of some use:
org.geotools.io: Contains extensions to java.io.Writer
org.geotools.util: Contains special implementations of java.util.Set.
If there is redundancy with other packages/modules, I would be glad to
try to reduce them.