java/.devcontainer/devcontainer.json

{
	"name": "Java Sample",
	"dockerFile": "Dockerfile",
	
	// Comment out the next line to run as root instead. Linux users, 
	// update Dockerfile with your user's UID/GID if not 1000.
	"runArgs": ["-u", "vscode"],

	// Use 'settings' to set *default* container specific settings.json values on container create. 
	// You can edit these settings after create using File > Preferences > Settings > Remote.
	"settings":{
		"java.home": "/docker-java-home",
		"terminal.integrated.shell.linux": "/bin/bash"
	},

	// Uncomment the next line if you want to publish any ports.
	// "appPort": [],

	// Uncomment the next line to run commands after the container is created.
	// "postCreateCommand": "java -version",

	"extensions": [
		"vscjava.vscode-java-pack",
		"redhat.vscode-xml"
	], 
}