I am working with an Amazon / Ubuntu EC2 server via SFTP and using Ubuntu 12.04 Desktop with OpenJDK7. If I am working locally, no problem, all fine.
If I connect to SFTP, or I load JEdit with the file manager /favorites holding an SFTP URI in buffer / load config, I get the same repeated jedit.io errors as on the attached screen shot.
JEdit eventually resolves the problem after about 30 secs or so and frees up. If I click on 'Utilities' and scroll the menu, it hangs again on either 'favorites' or 'recent files'. Again, it eventually frees up. Also, when navigating the remote server, it does the same on every click.
I have searched for earlier bugs, using 'SFTP' and found that similar has been reported at times. Thinking that perhaps the fixes that were put into Version 5.0 have not quite resolved things.
Sorry guys. Looks like good work has been done so far. :)