launch.json

{
    // 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": "Attach java debugger on port 5000 for tests",
            "request": "attach",
            "hostName": "localhost",
            "port": "5000",
            "sourcePaths" :[
                "${workspaceFolder}/core",
                "${workspaceFolder}/loader",
            ]
        },
        {
            "type": "java",
            "name": "Build and attach java debugger on port 5000 for tests",
            "request": "attach",
            "hostName": "localhost",
            "port": "5000",
            "sourcePaths" :[
                "${workspaceFolder}/core",
                "${workspaceFolder}/loader",
            ],
            "preLaunchTask": "buildLucee"
        }
    ]
}