[Geoserver-users] Geoserver 2.x ImageMosaic gives a DataSourceException when adding a new raster source.

[Jeff H. <jef...@gm...>]

I'm trying to build a coverage from a mosaic with 5 layers of
orthophotos, and I'm getting the following error:

10 Mar 10:12:20 WARN [geoserver.we] - NewLayerPage does not have a title set
10 Mar 10:12:20 WARN [imagemosaic.ImageMosaicFormat] - 1
org.geotools.data.DataSourceException: 1
...
Caused by: java.lang.NullPointerException
        at org.geoserver.catalog.CatalogBuilder.buildCoverage(CatalogBuilder.java:591)
        at org.geoserver.catalog.CatalogBuilder.buildCoverage(CatalogBuilder.java:567)
        at org.geoserver.web.data.layer.NewLayerPageProvider.getItems(NewLayerPageProvider.java:70)
... (87 more)

I created the following tiles.properties file in the directory
containing the tiles:

Envelope2D=2105000.000000,30000.000000,2325000.000000,230000.000000
LevelsNum=5
Levels=0.5,1,2,4,8
Name=tiles
ExpandToRGB=false
AbsolutePath=false
LocationAttribute=location

and the other metadata files in the directory are:
tiles.dbf
tiles.prj
tiles.properties
tiles.shp
tiles.shx

I created the mosaic with gdal_retile.py with worldfiles turned on
(although the file extension that gdal produces is *.wld, not *.jpw).
To be certain it wasn't just a permissions problem, I chmodded the
directory to 777.  The files are all readable and Geoserver can write
to its own data directory and the directory with the tiles if it needs
to.

I followed the tutorial as best I could at

http://docs.geoserver.org/2.0.x/en/user/tutorials/image_mosaic_plugin/imagemosaic.html#tutorial-imagemosaic-extension

am I missing something?

-- Jeff