Hey,

VSCode dev here. This milestone I am looking into simplifing generated launch.json for various extensions microsoft/vscode#62851

The launch.json that Java generates is attached at the end. This is not too complex for the avarage user, however we can still improve. I suggest to simplify it the following way:

• DebugConfigurationProvider should use the quickPick to ask the user if he would like to launch or to attach. After that it should ask what is the mainClass or what is the port. Optimally it should be able to detect those things on its own, but if not possible use quickPick to ask the user.
• Remove default fields which are not necessery like console, args, stopOnEntry, hostName and cwd
• You are already contributing configuraitonSnippets which is great. However these snippets also need to be simplified. I suggest to remove all attributes that have the default value. Example: stopAtEntry, cwd, args

If you agree with the suggestions I am making here I am also here to help with any potential questions you might have. The changes should not require a lot of work but will simplify the flow a lot imho. It should be much less complex and not too much like a wizard experience

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "java",
            "name": "Debug (Launch)",
            "request": "launch",
            "cwd": "${workspaceFolder}",
            "console": "internalConsole",
            "stopOnEntry": false,
            "mainClass": "",
            "args": ""
        },
        {
            "type": "java",
            "name": "Debug (Attach)",
            "request": "attach",
            "hostName": "localhost",
            "port": "<debug port of remote debuggee>"
        }
    ]
}