Verified at Nolana BF env - works as expected.
See attached screencast:

cc:  

Deployed to Nolana bf. Please proceed with verification

Verified at Snapshot environment - works as expected.
The issue from the previous comment is fixed.
See attached screencast:

Hi  
The "null (NullPointerException)" error still appears only in the following scenario_06:
Export of "Title+Package" record: All Package fields to export, ** No * *Title fields to export.

Steps to reproduce:
1. Go to "eHoldings" app => "Package" toggle
2. Fill in the search box with any "Package" name, to retrieve any records (e.g.: "Wiley").
3. Click on the "Search" button.
4. Open any "Package" record by clicking on it in the result list.
5. Scroll down to the "Titles" accordion and open any "Title" record by clicking on it.
6. Click on the "Actions" >> "Export title package (CSV)".
7. Click on the radio button placed under "Title fields to export" (see attached screenshot for example).

8. Click on the "Export" button.

9. Go to the "Export Manager" app and verify that the export job is finished successfully.
Expected result: Export job is finished successfully.
Actual result: Export job if failed with the following error: "null (NullPointerException)"
Additional information: See attached screencast:

Other scenarios work as expected:
1) Export of "Package" record: All Package fields to export, ** All * *Title fields to export;
2) Export of "Package" record: All Package fields to export, ** No * *Title fields to export;
3) Export of "Package" record: No Package fields to export, ** All * *Title fields to export;
4) Export of "Title+Package" record: All Package fields to export, ** All * *Title fields to export;
5) Export of "Title+Package" record: No Package fields to export, ** All * *Title fields to export;

cc:  **

It's needed to add verification of package/title fields presence in `EHoldingsCsvFileWriter` before writing anything to file.

NullPointer is appearing in the following places:

Must be covered by unit-tests.