Update devcontainer.json

.devcontainer/devcontainer.json

@@ -1,3 +1,28 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/java
 {
-    "ghcr.io/devcontainers/features/java:1": {}
+  "name": "Java",
+  // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+  "image": "mcr.microsoft.com/devcontainers/java:0-17",
+
+  "features": {
+    "ghcr.io/devcontainers/features/java:1": {
+      "version": "none",
+      "installMaven": "true",
+      "installGradle": "false"
+    },
+    "ghcr.io/devcontainers-contrib/features/ant-sdkman:2": {}
+  }
+
+  // Use 'forwardPorts' to make a list of ports inside the container available locally.
+  // "forwardPorts": [],
+
+  // Use 'postCreateCommand' to run commands after the container is created.
+  // "postCreateCommand": "java -version",
+
+  // Configure tool-specific properties.
+  // "customizations": {},
+
+  // Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+  // "remoteUser": "root"
 }