B4J Question java.lang.RuntimeException: not supported (Release only)

Pendrush

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Longtime User
I have modified a bit ServerExampleNoMySQL, everything working fine in debug mode (multi devices get connected and communicate with each other), but in Release I get this error when device try to connect on WebSocket. I'm using B4J v3.7 Beta 1.


EDIT: OK, I have found similar error on forum, It's a server UI app and that is no go. Converted in non-UI app and everything working as expected.
 
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