Dumping all the jars into the project will work (as an alternative to maven) 
but you do need to be careful to only select one epsg jars. You can only have 
one of them; which one you choose is up to you.

Here is the wiki page on the subject:
- http://docs.codehaus.org/display/GEOTDOC/07+Referencing

It contains the following....

Before you start - choose only one epsg jar
The referencing module does not do very much out of the box - it needs someone 
to tell it what all the funny codes mean (such as "EPSG:4326").
You need to choose a single epsg jar to have on your classpath; if you have 
several epsg jars on your classpath you will get a FactoryException.

For most needs just use the epsg-hsql plugin:

EPSG HSQL Plugin: will unpack an hsql database containing the official epsg 
database into a temp directory, a great solution for desktop applications.
There are several alternatives:

EPSG WKT Plugin: uses an internal property file and is lightweight rather than 
official and correct. A great solution for applets
EPSG Postgres Plugin: uses the official epsg database which you have to load 
into PostgreSQL yourself. A great solution for Java EE applications.
EPSG Access Plugin: directly use an the official epsg database as distributed. 
A great solution for windows users.
EPSG Oracle Plugin: currently unsupported
The main module includes definitions of AUTO and AUTO2 and several other OGC 
inspired ideas.

Jody

On 30/07/2010, at 7:03 AM, GTn00b wrote:

> 
> Duane,
> 
> I'm saying that I'm having a problem running geotools as part of an eclipse
> project - eclipse is my IDE.
> 
> Jody,
> 
> If I dump all the geotools jars into the same project, I guess that means
> not using Maven? I don't understand why my project has no problem finding
> all the other jars in the referenced libraries, but not this one?
> -- 
> View this message in context: 
> http://osgeo-org.1803224.n2.nabble.com/Exception-in-CoordinateReferenceSystem-tp5087708p5348074.html
> Sent from the geotools-gt2-users mailing list archive at Nabble.com.
> 
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