VS Code + Java

 Language Support for Java(TM) by Red Hat
 https://marketplace.visualstudio.com/items?itemName=redhat.java

tasks.json
{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "taskName": "build",
            "command": "javac",
            "args": [
                "-g",
                "${file}"
            ]
        }
    ]
}