imagej/imagej-updater — pull request #28 by ctrueden (2014-06-13 17:10:10+00:00)
Title: Check for updates on a separate thread

Otherwise, if there are networking issues such as those reported at:

https://list.nih.gov/cgi-bin/wa.exe?A2=IMAGEJ;6e3613ac.1406

Then it is impossible to use ImageJ until the update check is complete,
which might take 60 seconds or more for the network request to time out.