Hi Franco,
Do you have any chance to run gdalinfo on that file and report back the
output?
(I wonder if there is an issue with the CoordinateReferenceSystem, such as
some missing elements defining it).

Please, let us know.
Cheers,
Daniele



On Tue, Apr 12, 2016 at 12:32 PM, Franco Minutiello <
franco.minutie...@darts.it> wrote:

> HI all,
>
> I have problem with image mosaic plugin using geotiff.
> The geoserver version is 2.8.1.
> The same configurartion works with tiff copied from  snow time series
> examples.
> in the page "Add Raster Data Source" I saw the following error:
> "Could not list layers for this store, an error occurred retrieving them:
> Failed to create reader from file:workspaces/.... and hints null"
>
> I think there's a problem involving geotiff data tags.
> This is the exception encoutered
>
> 2016-04-12 12:27:37,001 ERROR [imagemosaic.Utils] -
> java.lang.NullPointerException
>         at
> org.geotools.gce.imagemosaic.RasterManager$SpatialDomainManager.prepareCoverageSpatialElements(RasterManager.java:203)
>         at
> org.geotools.gce.imagemosaic.RasterManager$SpatialDomainManager.<init>(RasterManager.java:178)
>         at
> org.geotools.gce.imagemosaic.RasterManager.initialize(RasterManager.java:1472)
>         at
> org.geotools.gce.imagemosaic.ImageMosaicConfigHandler.indexingPostamble(ImageMosaicConfigHandler.java:410)
>         at
> org.geotools.gce.imagemosaic.ImageMosaicDirectoryWalker$MosaicDirectoryWalker.<init>(ImageMosaicDirectoryWalker.java:132)
>         at
> org.geotools.gce.imagemosaic.ImageMosaicDirectoryWalker.run(ImageMosaicDirectoryWalker.java:196)
>         at org.geotools.gce.imagemosaic.Utils.createMosaic(Utils.java:359)
>         at org.geotools.gce.imagemosaic.Utils.checkSource(Utils.java:1237)
>         at
> org.geotools.gce.imagemosaic.ImageMosaicReader.initReaderFromURL(ImageMosaicReader.java:516)
>         at
> org.geotools.gce.imagemosaic.ImageMosaicReader.<init>(ImageMosaicReader.java:468)
>         at
> org.geotools.gce.imagemosaic.ImageMosaicFormat.getReader(ImageMosaicFormat.java:483)
>         at
> org.geotools.gce.imagemosaic.ImageMosaicFormat.getReader(ImageMosaicFormat.java:103)
>         at
> org.geoserver.catalog.ResourcePool.getGridCoverageReader(ResourcePool.java:1441)
>         at
> org.geoserver.catalog.ResourcePool.getGridCoverageReader(ResourcePool.java:1369)
>         at
> org.geoserver.catalog.impl.CoverageStoreInfoImpl.getGridCoverageReader(CoverageStoreInfoImpl.java:59)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at
> org.geoserver.catalog.impl.ModificationProxy.invoke(ModificationProxy.java:146)
>
> this is the listgeo output for the tif file
>
> Geotiff_Information:
>    Version: 1
>    Key_Revision: 1.2
>    Tagged_Information:
>       ModelTransformationTag (4,4):
>          7.80859375        0                 0                 981591
>          0                 -6.51432291666667 0                 5538963
>          0                 0                 0                 0
>          0                 0                 0                 1
>       End_Of_Tags.
>    Keyed_Information:
>       GTModelTypeGeoKey (Short,1): ModelTypeProjected
>       GTRasterTypeGeoKey (Short,1): RasterPixelIsArea
>       GeographicTypeGeoKey (Short,1): GCS_WGS_84
>       ProjectedCSTypeGeoKey (Short,1): User-Defined
>       PCSCitationGeoKey (Ascii,24): "WGS84 / Google Mercator"
>       ProjectionGeoKey (Short,1): User-Defined
>       ProjCoordTransGeoKey (Short,1): CT_Mercator
>       ProjLinearUnitsGeoKey (Short,1): Linear_Meter
>       ProjLinearUnitSizeGeoKey (Double,1): 1
>       ProjNatOriginLongGeoKey (Double,1): 0
>       ProjNatOriginLatGeoKey (Double,1): 0
>       ProjFalseEastingGeoKey (Double,1): 0
>       ProjFalseNorthingGeoKey (Double,1): 0
>       ProjScaleAtNatOriginGeoKey (Double,1): 1
>       End_Of_Keys.
>    End_Of_Geotiff.
>
> Projection Method: CT_Mercator
>    ProjNatOriginLatGeoKey: 0.000000 (  0d 0' 0.00"N)
>    ProjNatOriginLongGeoKey: 0.000000 (  0d 0' 0.00"E)
>    ProjScaleAtNatOriginGeoKey: 1.000000
>    ProjFalseEastingGeoKey: 0.000000 m
>    ProjFalseNorthingGeoKey: 0.000000 m
> GCS: 4326/WGS 84
> Datum: 6326/World Geodetic System 1984
> Ellipsoid: 7030/WGS 84 (6378137.00,6356752.31)
> Prime Meridian: 8901/Greenwich (0.000000/  0d 0' 0.00"E)
> Projection Linear Units: 9001/metre (1.000000m)
>
> Corner Coordinates:
> Upper Left    (  981591.000, 5538963.000)  (  8d49' 4.02"E, 44d39'55.73"N)
> Lower Left    (  981591.000, 5533960.000)  (  8d49' 4.02"E, 44d38' 0.24"N)
> Upper Right   (  989587.000, 5538963.000)  (  8d53'22.60"E, 44d39'55.73"N)
> Lower Right   (  989587.000, 5533960.000)  (  8d53'22.60"E, 44d38' 0.24"N)
> Center        (  985589.000, 5536461.500)  (  8d51'13.31"E, 44d38'57.99"N)
>
> Thanks
>
>
>
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