urn:ogc:def:crs:EPSG:4326 parsing won't work if forcexy is activated
--------------------------------------------------------------------

                 Key: GEOT-1659
                 URL: http://jira.codehaus.org/browse/GEOT-1659
             Project: GeoTools
          Issue Type: Bug
          Components: core referencing
    Affects Versions: 2.5-M0
            Reporter: Andrea Aime
            Assignee: Martin Desruisseaux
            Priority: Critical
             Fix For: 2.5-M0


Parsing urn:ogc:def:crs:EPSG:4326 in GeoServer trunk has become impossible (not 
sure if yesterday or the day before)
due to a change in behaviour of the referencing subsystem.

Running the following code:

{code}
package org.geotools.referencing;

import org.geotools.factory.Hints;

public class ForcedLonFailure {
    public static void main(String[] args) throws Exception {
        // comment out this one and it'll work
        System.setProperty("org.geotools.referencing.forceXY", "true");
        Hints.putSystemDefault(Hints.FORCE_AXIS_ORDER_HONORING, "http");
        System.out.println(CRS.decode("urn:ogc:def:crs:EPSG:4326"));
    }

}
{code}

results in the following exception:

{code}
Exception in thread "main" 
org.opengis.referencing.NoSuchAuthorityCodeException: Authority "URN" is 
unknown or doesn't match the supplied hints. Maybe it is defined in an 
unreachable JAR file?
        at 
org.geotools.referencing.factory.ManyAuthoritiesFactory.noSuchAuthority(ManyAuthoritiesFactory.java:488)
        at 
org.geotools.referencing.factory.ManyAuthoritiesFactory.getAuthorityFactory(ManyAuthoritiesFactory.java:466)
        at 
org.geotools.referencing.factory.ManyAuthoritiesFactory.getCRSAuthorityFactory(ManyAuthoritiesFactory.java:547)
        at 
org.geotools.referencing.factory.AuthorityFactoryAdapter.createCoordinateReferenceSystem(AuthorityFactoryAdapter.java:753)
        at 
org.geotools.referencing.factory.ThreadedAuthorityFactory.createCoordinateReferenceSystem(ThreadedAuthorityFactory.java:728)
        at org.geotools.referencing.CRS.decode(CRS.java:419)
        at org.geotools.referencing.CRS.decode(CRS.java:353)
        at 
org.geotools.referencing.ForcedLonFailure.main(ForcedLonFailure.java:12)
{code}

This makes the wfs 1.1 and wcs 1.1 protocols unusable (they suggest the usage 
of the urn syntax).

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