[THREDDS #KDX-923886]: This NcML URL works in 4.2, not in 4.3

Hi Rich,

Yes, our handling of URLs where we don't know the service type depends on the 
order in which we try different services on that URL and how we handle 
exceptions on those attempts. Looks like our latest and greatest broke the 
OPeNDAP URL that ends in ".ncml" case.

I've added this as a JIRA issue here:

https://www.unidata.ucar.edu/jira/browse/TDS-295

I saw the same 400 response behavior in the ToolsUI Viewer but didn't get an 
Exception trace. What method are you using to open this URL in netCDF-Java? 

Thanks,

Ethan

Rich Signell wrote:
> This DAP URL
> http://geoport.whoi.edu/thredds/dodsC/usgs/data0/bathy/lidar/me/maine_geo.ncml
> from datasetScanned NcML file works fine in NetCDF Java 4.2, but in
> netcdf 4.3, gives:
>
> java.io.IOException: Server returned HTTP response code: 400 for URL:
> http://geoport.whoi.edu/thredds/dodsC/usgs/data0/bathy/lidar/me/maine_geo.ncml
>   at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown 
> Source)
>   at 
> com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(Unknown
>  Source)
>   at 
> com.sun.org.apache.xerces.internal.impl.XMLVersionDetector.determineDocVersion(Unknown
>  Source)
>   at 
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown 
> Source)
>   at 
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown 
> Source)
>   at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown 
> Source)
>   at 
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown 
> Source)
>   at 
> com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
>  Source)
>
> It seems that
> dods://geoport.whoi.edu/thredds/dodsC/usgs/data0/bathy/lidar/me/maine_geo.ncml
> works in 4.3, so perhaps just reinstate the logic that allowed "http"
> prefix to work via OPeNDAP with .ncml" suffix. 

Ticket Details
===================
Ticket ID: KDX-923886
Department: Support THREDDS
Priority: Normal
Status: Closed