TestHDFViewImageConversion: convertImageToHDF4 fails - HDF4 image conversion bug

[byrnHDF]

Description

The convertImageToHDF4 test in TestHDFViewImageConversion fails when attempting to convert a JPEG image to HDF4 format. After conversion, the file tree shows 0 rows instead of the expected converted file.

Error Details

The row number (0) is more than the number of rows(0) in the tree.

Test Details

• Test file: TestHDFViewImageConversion.java
• Test method: convertImageToHDF4()
• Input image: apollo17_earth.jpg
• Expected output: apollo17_earth.jpg.hdf

Steps to Reproduce

1. Run mvn test -pl hdfview -Dtest=TestHDFViewImageConversion#convertImageToHDF4
2. Test opens Tools > Convert Image To > HDF4
3. Conversion appears to complete but file tree is empty

Expected Behavior

• Image should be converted to HDF4 format
• Converted file should appear in the file tree
• Image metadata (rank, dimensions) should be accessible

Workaround

Test is currently disabled with @Disabled annotation. The HDF5 image conversion test (convertImageToHDF5) works correctly.

Notes

This appears to be a bug in the HDF4 image conversion functionality, not just the test.