I've downloaded the two most recent .dmg packages as well as the latest .tar.gz one and when I double-click on the application (or the jar) I get a window with the following (or similar, for the .app package) message:
> Errors found in GUI specification > jar:file:/Users/suzume/Downloads/xxe-perso-4_3_0/bin/xxe.jar!/gui/ > app/Restricted.xxe_gui > > ? "jar:file:/Users/suzume/Downloads/xxe-perso-4_3_0/bin/xxe.jar!/ > gui/app/Restricted.xxe_gui", line -1, column -1: cannot create XML > parser: This parser does not support specification "null" version > "null" > Errors found in configuration files > customize.xxe > > ? command triggered by "drop" is unknown I am using the latest Java update for 10.5.6. Jean-Christophe Helary

