[Geotools-gt2-users] CRS of this map context is null. Unable to get bounds.

[Greg E. <gr...@er...>]

Hi,

I am reading a shapefile using the following code from the User Guide:

File file = new File("/Users/gregederer/servers/geoserver_data/data/ 
shapefiles/gaul/Africa/g2008_1.shp");//getShapeFile(args);

     ShapefileDataStore shapefile = new  
ShapefileDataStore(file.toURL());
     String typeName = shapefile.getTypeNames()[0];
     FeatureSource featureSource = shapefile.getFeatureSource();
     FeatureType schema = featureSource.getSchema();
     CoordinateReferenceSystem crs =  
schema.getGeometryDescriptor().getCoordinateReferenceSystem();

     MapContext map = new DefaultMapContext(crs);
     Style style = createStyle(file, schema);
     map.addLayer(featureSource, style);

     showMap(map);

in showMap():

     final JMapPane mapPane = new JMapPane(new StreamingRenderer(),  
map);
     mapPane.setMapArea(map.getLayerBounds());

When I run this code against my shapefile, I get:

Exception in thread "main" java.io.IOException: CRS of this map  
context is null. Unable to get bounds.
         at  
org 
.geotools.map.DefaultMapContext.getLayerBounds(DefaultMapContext.java: 
544)
         at org.esv.SummaryStats.ShapeLab.showMap(ShapeLab.java:187)
         at org.esv.SummaryStats.ShapeLab.main(ShapeLab.java:75)

Is it possible that this shapefile has no CRS?  If so, is there a  
factory method that I can use to get the required  
CoordinateReferenceSystem reference?  I happen to know that this  
particular shapefile is in ESPG:4326.  What other parameters will I  
need?

Thanks!

Greg