[Geotools-devel] Broken Build on Windows (Again)

[Brett W. <bre...@ge...>]

Hi Devs,

I develop on Windows and have come across another issue that may be broken ONLY on windows.

Issuing mvn clean install the build fails in the GeoTIFF grid coverage exchange module on the test org.geotools.gce.geotiff.GeoTiffReaderTest#prjOverrideTesting1 on line 87

After exploring the code, the assertion fails because the two CRSs have datums with different names

crs: PROJCS["unnamed",
  GEOGCS["GCS Name = GRS 1980(IUGG, 1980)",
    DATUM["Datum = unknown",
      SPHEROID["Ellipsoid = GRS80", 6378137.0, 298.257222101]],
    PRIMEM["Greenwich", 0.0],
    UNIT["degree", 0.017453292519943295],
    AXIS["Geodetic longitude", EAST],
    AXIS["Geodetic latitude", NORTH]],
  PROJECTION["Transverse_Mercator"],
  PARAMETER["central_meridian", 21.0],
  PARAMETER["latitude_of_origin", 0.0],
  PARAMETER["scale_factor", 0.9999],
  PARAMETER["false_easting", 7500000.0],
  PARAMETER["false_northing", 0.0],
  UNIT["m", 1.0],
  AXIS["Easting", EAST],
  AXIS["Northing", NORTH]]
crs_: PROJCS["KosovaRef01",
  GEOGCS["GCS_GRS_1980",
    DATUM["D_ETRS_89",
      SPHEROID["GRS_1980", 6378137.0, 298.257222101]],
    PRIMEM["Greenwich", 0.0],
    UNIT["degree", 0.017453292519943295],
    AXIS["Longitude", EAST],
    AXIS["Latitude", NORTH]],
  PROJECTION["Transverse_Mercator"],
  PARAMETER["central_meridian", 21.0],
  PARAMETER["latitude_of_origin", 0.0],
  PARAMETER["scale_factor", 0.9999],
  PARAMETER["false_easting", 7500000.0],
  PARAMETER["false_northing", 0.0],
  UNIT["m", 1.0],
  AXIS["x", EAST],
  AXIS["y", NORTH]]

>From reading the comment in org.geotools.referencing.datum.AbstractDatum#equals (line 276) this seems entirely appropriate.

I have two suspicions as to location of the failed test; the first is the test is itself is bad (this would be the easy solution), and the second is the GeoTiffReader or PrjFileReader is suspect on Windows.

The question I ask is where should I be looking to resolve the issue I have? I may be of target with my analysis above. Is this a known problem on Windows, or is there a satisfactory 'fix' to apply for building on windows.

Brett