JabRef version

Latest development branch build (please note build date below)

Operating system

macOS

Details on version and operating system

macOS 15.5

Checked with the latest development build (copy version output from About dialog)

• I made a backup of my libraries before testing the latest development version.
• I have tested the latest development version and the problem persists

Steps to reproduce the behaviour

Follow https://docs.jabref.org/setup/customentrytypes

How to reproduce

1. Type some spaces and press enter

2. Notice that an empty entry type was created

3. Press save, preferences are recorded.

Result
An empty entry type was created and saved, which should not be.

Possible cause
'Press enter' action calls CustomEntryTypesTabViewModel.addNewCustomEntryType() directly, while 'Press + button' calls CustomEntryTypesTab.addEntryType(), so any validation implemented in addEntryType() is bypassed when adding entry type via 'press enter'.

This issue is very related to #15074 i am currently working on. Could you please assign me to this issue so that i can fix this as well?

Appendix

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