writeEnumData raises NPE with empty section.getStride()

[skynet2982]

Hello,

I have a dataset of netcdf4 files and I try to read/write this dataset using netcdf library version 4.6.11

Reading the files works but writing fails on

Nc4Iosp::writeEnumData()

This is an extract of my test

NetcdfFile ncFile = NetcdfFile.open(inputFile.getAbsolutePath());
final Nc4Chunking chunker = Nc4ChunkingStrategy.factory(Strategy.standard, 0, true);
final FileWriter2 fw = new FileWriter2(ncFile, outputFileName, NetcdfFileWriter.Version.netcdf4, chunker);
    fw.write();

The problem comes from Nc4Iosp::writeEnumData().
Line 2946

SizeT[] stride = convertSizeT(section.getStride());

the 'stride' reference is null. This is because method 'convertSizeT' does:

if (from.length == 0) return null;

And just after in writeEnumData their is a loop trying to use 'stride.length' (which in my case is null)

for(int i = 0; i < stride.length; i++)

I will try to provide a fix for this problem.

Regards,
Robin

PS: Unfortunately I cannot provide you the dataset I'm using.

[cwardgar]

Can you provide a similar dataset that demonstrates the bug?

[skynet2982]

Sorry but I'm not authorized to provide my dataset. I don't have the time to search or build a similar dataset that provokes the NPE.