[Geotools-gt2-users] EPSG:3785. Error even after adding gt-epsg-extension-2.5.0.jar

[<Shy...@co...>]

Hi,

I am using GeoTools 2.5.0. 
I want to project data in another CRS to Google Mercator CRS. I was
previously using WKT to create the Google Mercator CRS. 

Since now we have an official EPSG code for the same I want to switch
over to that. Please find below the code that I have written.
CRSAuthorityFactory   factory = CRS.getAuthorityFactory(true);
CoordinateReferenceSystem crs =
factory.createCoordinateReferenceSystem("EPSG:3785");

The same code worked when I used EPSG:4326.

I have added gt-epsg-extension-2.5.0.jar to the classpath. Even after
doing so I get the following exception:
Exception in thread "main"
org.opengis.referencing.NoSuchAuthorityCodeException: No code
"EPSG:3785" from authority "European Petroleum Survey Group" found for
object of type "CoordinateReferenceSystem".
	at
org.geotools.referencing.factory.AbstractAuthorityFactory.noSuchAuthorit
yCode(AbstractAuthorityFactory.java:949)
	at
org.geotools.referencing.factory.epsg.DirectEpsgFactory.createCoordinate
ReferenceSystem(DirectEpsgFactory.java:2000)
	at
org.geotools.referencing.factory.BufferedAuthorityFactory.createCoordina
teReferenceSystem(BufferedAuthorityFactory.java:781)
	at
org.geotools.referencing.factory.AuthorityFactoryAdapter.createCoordinat
eReferenceSystem(AuthorityFactoryAdapter.java:798)
	at
org.geotools.referencing.factory.BufferedAuthorityFactory.createCoordina
teReferenceSystem(BufferedAuthorityFactory.java:781)
	at
org.geotools.referencing.factory.AuthorityFactoryAdapter.createCoordinat
eReferenceSystem(AuthorityFactoryAdapter.java:798)
	at
org.geotools.referencing.factory.FallbackAuthorityFactory.createCoordina
teReferenceSystem(FallbackAuthorityFactory.java:638)
	at
org.geotools.referencing.factory.AuthorityFactoryAdapter.createCoordinat
eReferenceSystem(AuthorityFactoryAdapter.java:798)
	at
org.geotools.referencing.factory.ThreadedAuthorityFactory.createCoordina
teReferenceSystem(ThreadedAuthorityFactory.java:729)
	at
org.geotools.referencing.DefaultAuthorityFactory.createCoordinateReferen
ceSystem(DefaultAuthorityFactory.java:179)
	at
com.cognizant.clips.data.utils.ShapeFileTransformer.getCoordinateReferen
ceSystem(ShapeFileTransformer.java:233)
	at
com.cognizant.clips.data.utils.ShapeFileTransformer.main(ShapeFileTransf
ormer.java:90)

I had a similar error when I used EPSG:900913. 
I referred to other posts and there was a mention that epsg-ext jar had
to be added to the classpath for this. I am assuming that the jar
referred to is 
gt-epsg-extension-2.5.0.jar. I have not configured any EPSG databases.
On checking the esri.properties file in gt-epsg-extension-2.5.0.jar, I
could not find an entry for 3785 and 900913.

Please let me know if I am missing something. 

Thanks and Regards,
Shyam Sundar.N

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