#7 IllegalArgumentException

[xunyuanUMD]

crosswordsage-0.3.5

When setting preferences,
check "Auto-check for newer versions";
check "Use proxy server"
set Proxy Address to some value
set Proxy Port to a negative number
set User Name to some value
set Password to some value
then, click Save.

Next, click "Tools->Check Version",
java.lang.IllegalArgumentException: port out of range
will be thrown.

(Detected by CS UMD feedback-based GUI testing technique)