PrjFileReader buffer is never cleaned up by NIOUtilities
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                 Key: GEOT-2661
                 URL: http://jira.codehaus.org/browse/GEOT-2661
             Project: GeoTools
          Issue Type: Bug
          Components: data shapefile
    Affects Versions: 2.5.2, 2.5.8, 2.6-M2
         Environment: Windows, Java 1.6.0.14
            Reporter: Matt Blanchette
            Assignee: Andrea Aime


MappedByteBuffer in PrjFileReader is never cleaned up with NIOUtilities.clean() 
in the close() method for local shapefiles on Windows file system
Test for !memoryMapped on line 135 prevents cleanup from occuring, since 
memoryMapped is always true in PrjFileReader

Without removing the buffer, the prj file cannot be deleted on the Windows 
system (until garbage collection occurs)

To reproduce, attempt to delete prj file after calling getSchema() or 
getFeatureSource() in ShapefileDataStore
Version used is 2.5.2 but this is the same in trunk

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