How to print exception stacktrace in Lotus Domino Designer console

I'd like to look at console output when my agent is run. Or how to set开发者_StackOverflow社区 up file output.

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Im assuming you're referring to the java console ? You can display a stack trace or system output by looking under Select File->Tools->Show Java debug console.

This old article is still applicable today for debugging java in Domino.

This article covers issues with debugging java agents in 8.5, with a bit more here for activating debug for agents