sample-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": "Current File",
            "request": "launch",
            "mainClass": "${file}"
        },
        {
            "type": "java",
            "name": "SUB1",
            "request": "launch",
            "mainClass": "com.test.Main",
            "projectName": "SUB1",
            "cwd": "${workspaceFolder}/SUB1"
        },
        {
            "type": "java",
            "name": "SUB2",
            "request": "launch",
            "mainClass": "com.test.Main",
            "projectName": "SUB2",
            "cwd": "${workspaceFolder}/SUB2"
        },
        {
            "type": "java",
            "name": "SUB3",
            "request": "launch",
            "mainClass": "com.test.Main",
            "projectName": "SUB3",
            "cwd": "${workspaceFolder}/SUB3"
        },
        {
            "type": "java",
            "name": "SUB4",
            "request": "launch",
            "mainClass": "com.test.Main",
            "projectName": "SUB4",
            "cwd": "${workspaceFolder}/SUB4"
        },
        {
            "type": "java",
            "name": "SUB5",
            "request": "launch",
            "mainClass": "com.test.Main",
            "projectName": "SUB5",
            "cwd": "${workspaceFolder}/SUB5"
        }
    ]
}