"No CRS for srid.."

The method below inside OracleDataStore.java makes query like: "select wktext from cs_srs ...."

as cs_srs table is an object of MDSYS scheme, an exception occurs - "No CRS for srid ...." as you can see in the code.
/////////////////original method:

protected CoordinateReferenceSystem determineCRS(int srid ) throws IOException {
Connection conn = getConnection(Transaction.AUTO_COMMIT);;
String wkt=null;
try

{ Statement st = conn.createStatement(); st.execute("select wktext from cs_srs where srid = "+srid ); ////// the line needs to be changed ResultSet set = st.getResultSet(); if( !set.next() ) return null; wkt = set.getString(1); return CRS.parseWKT( wkt ); }

catch( FactoryException parse)

{ throw (IOException) new IOException( "Unabled to parse WKTEXT into a CRS:"+wkt ).initCause( parse ); }

catch( SQLException sql )

{ throw (IOException) new IOException( "No CRS for srid "+srid ).initCause( sql ); }
}


I've replaced the query with "select wktext from mdsys.cs_srs ...." , recompiled the OracleDataStore.java file put it into oracle-spatial.jar and now it works fine for me.


/////////////////modified method:
protected CoordinateReferenceSystem determineCRS(int srid ) throws IOException {
Connection conn = getConnection(Transaction.AUTO_COMMIT);;
String wkt=null;
try { Statement st = conn.createStatement(); st.execute("select wktext from mdsys.cs_srs where srid = "+srid ); ///// changed line ResultSet set = st.getResultSet(); if( !set.next() ) return null; wkt = set.getString(1); return CRS.parseWKT( wkt ); }
catch( FactoryException parse){ throw (IOException) new IOException( "Unabled to parse WKTEXT into a CRS:"+wkt ).initCause( parse ); }
catch( SQLException sql ){ throw (IOException) new IOException( "No CRS for srid "+srid ).initCause( sql ); }

}

i don't exactly know if im right about it being a bug...cause in uDig project i connected to Oracle without any problems like this, may be they changed that or maybe im making a mistake.