Java run/debug using overseer.nvim

[s1n7ax]

Hi! nvim-java author here. I was wondering if it's possible to use overseer.nvim to run and debug java applications. I remember seeing one of your issues in the dap project related to debug so thought it might be possible.

Running

The last time I checked, DAP can be used to run tests without stopping at debug points but same nodebug parameter did not work when executing application (mfussenegger/nvim-dap#1094). So our approach for running is a simple command like below.

/usr/bin/java  -cp /path/one:/path/two  com.example.demo.DemoApplication
# ^ java executable path   ^ classpaths            ^ app

High level idea is, we send LSP requests to jdtls to get,

• java executable path
• classpaths
• app

Those calls are asynchronous as you probably know.

Debugging

Nothing unusual here as well. We get the same set of information, set the DAP config. Rest of it is user using nvim-dap to debug things. However, one major issue is, we have logs from the Run because we handle the std in/out and we store them so user can see later. But for debugging, I don't know what the hell happens to the log.

All in one place

End of the day, I would like to feat overseer and overcome these issue

• Having two ways to run / debug is not ideal for us.
• I want to be able to view run and debug logs in the same place
• Something like tasks.json for people to create profiles of applications.

I'm just wondering if this is possible using overseer, and where can I start?