Logisim freezes when using the file open/save dialog.

[Tom Bjerck]

How to reproduce:
1) Start Logisim.
2) Use File->save or File->open
3) Try to navigate to a folder other than the home folder.
4) Logisim freezes and have to be killed. It can be killed by a TERM signal.

I of course expected the open/save dialog to open/save the project.

Usually logisim works if the .circ file is in the home folder, but not always.

I have this problem on two different computers with identical Ubuntu and Logisim installations, but with different Java installations.

$ lsb_release -rd
Description: Ubuntu 15.10

$ apt-cache policy logisim
logisim:
  Installed: 2.7.1~dfsg-1
  Candidate: 2.7.1~dfsg-1
  Version table:
 *** 2.7.1~dfsg-1 0
        500 http://no.archive.ubuntu.com/ubuntu/ wily/universe amd64 Packages
        100 /var/lib/dpkg/status

Java versions:
Computer 1:
$ java -version
java version "1.7.0_95"
OpenJDK Runtime Environment (IcedTea 2.6.4) (7u95-2.6.4-0ubuntu0.15.10.1)
OpenJDK 64-Bit Server VM (build 24.95-b01, mixed mode)

Computer 2:
$ java -version
java version "1.8.0_74"
Java(TM) SE Runtime Environment (build 1.8.0_74-b02)
Java HotSpot(TM) 64-Bit Server VM (build 25.74-b02, mixed mode)

[Tom Bjerck (tom-bjerck)]

A compilation of the source code from https://github.com/reds-heig/logisim-evolution does not have this bug.