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Hi Jo Ellen: in openNetcdfGridDataset, the URL file:/C:/VERDI_test/VERDI_1.5.1_test03092015/data/model/CCTM46_P16.baseO2a.36k.O3MAX is converted to /C:/VERDI_test/VERDI_1.5.1_test03092015/data/model/CCTM46_P16.baseO2a.36k.O3MAX which passes NetcdfFile.open() but fails on GridDataset.open(urlString) I would suggest that you remove the part that strips ofd "file" but leaves the leading "/". Basically dont use urlString = new URI(urlString).getPath(); I will also check if we should be accepting the leading "/", but that will take a while. private GridDataset openNetcdfGridDataset(URL url) throws URISyntaxException, IOException { Logger.debug("in NetcdfDatasetFactory.openNetcdfGridDataset, url = " + url); String urlString = url.toExternalForm(); Logger.debug("when converted .toExternalForm(), urlString = " + urlString); if (url.getProtocol().equals("file")) { Logger.debug("url.getProtocol().equals('file') so ready to get updated urlString"); urlString = new URI(urlString).getPath(); Logger.debug("updated urlString = " + urlString); } validNetcdfFile( urlString); Logger.debug("back from validNetcdfFile"); // return GridDataset.open(urlString); // NetCDF ENHANCE Logger.debug("ready to call GridDataset.open for urlString = " + urlString); GridDataset gridDataset = GridDataset.open(urlString); // if ( 1 == 2 ) // printGridDatasetInfo( gridDataset); return gridDataset; } > 1.) Version netcdfAll-4.3 worked. Versions netcdfAll-4.5.3 and > netcdfAll-4.5.jar dated 3/6/2015 (current one on your Web site, I believe) > both fail. > > 2.) The source file for NetcdfDatasetFactory.java is attached. > > Thank you for your prompt response yesterday. I hope that this is something > that will be an easy and quick fix for both of us. > > Jo Ellen > > > -----Original Message----- > From: Unidata netCDF Java Support [mailto:address@hidden] > Sent: Monday, March 09, 2015 7:19 PM > To: Brandmeyer, Jo Ellen > Cc: address@hidden > Subject: [netCDFJava #AYO-259890]: Malformed URL and .dds appended to URL > > > Full Name: Jo Ellen Brandmeyer > > Email Address: address@hidden > > Organization: UNC Institute for the Environment Package Version: > > current (4.5) Operating System: Windows 7 > > Hardware: 64-bit > > Description of problem: We are working on the next release of VERDI. We > > updated the NetCDF-Java library to the most current version. Now we cannot > > open and display the data files. Our test data files have not been changed > > in over a year, and we did a step-wise update such that we could work with > > the test files, we updated the NetCDF-Java library, and we could not work > > with the files. For some reason, the failure shows a .dds appended to the > > URL. Please note that everything seems to run fine on Mac and Linux but > > fails on Windows. Test machine is Windows 7, 64-bit. > > > > > > Hi Joellen: > > It looks like the "file:" got stripped off somewhere. > > 1) which version did you upgrade to? The one released yesterday (4.5.5)? > 2) can you send me anl.verdi.loaders.NetcdfDatasetFactory.java ? > > thanks > > John > > Ticket Details > =================== > Ticket ID: AYO-259890 > Department: Support netCDF Java > Priority: Normal > Status: Open > > Ticket Details =================== Ticket ID: AYO-259890 Department: Support netCDF Java Priority: Normal Status: Closed