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IMPORTANT NOTE: We're starting to migrate contents of this repo to the devcontainers org, as part of the work on the open dev container specification.

We've currently migrated the java Feature to devcontainers/features/src/java.

For more details, you can review the announcement issue.

Java Install Script

Installs Java, SDKMAN! (if not installed), and needed dependencies.

Script status: Stable

OS support: Debian 9+, Ubuntu 18.04+, and downstream distros.

Maintainer: The VS Code and GitHub Codespaces teams

Syntax

./gradle-debian.sh [Java version] [SDKMAN_DIR] [Non-root user] [Add rc files flag]

Or as a feature:

"features": {
    "java": "latest"
}
Argument Feature option Default Description
Java version version latest Version of Java to install. Specify latest to install the latest supported Microsoft JDK or lts for the latest LTS version. Specify default to install default version SDKMAN provides.
SDKMAN_DIR /usr/local/sdkman Location to find SDKMAN!, or if not found, where to install it.
Non-root user automatic Specifies a user in the container other than root that will use Gradle. A value of automatic will cause the script to check for a user called vscode, then node, codespace, and finally a user with a UID of 1000 before falling back to root.
Add to rc files flag true A true/false flag that indicates whether sourcing the nvm script should be added to /etc/bash.bashrc and /etc/zsh/zshrc.

Usage

Feature use

You can use this script for your primary dev container by adding it to the features property in devcontainer.json.

"features": {
    "java": "latest"
}

If you have already built your development container, run the Rebuild Container command from the command palette (Ctrl/Cmd + Shift + P or F1) to pick up the change.

Script use

  1. Add java-debian.sh to .devcontainer/library-scripts

  2. Add the following to your .devcontainer/Dockerfile:

    ENV SDKMAN_DIR="/usr/local/sdkman"
ENV PATH=${SDKMAN_DIR}/bin:${SDKMAN_DIR}/candidates/java/current/bin:${PATH}
COPY library-scripts/java-debian.sh /tmp/library-scripts/
RUN apt-get update && bash /tmp/library-scripts/java-debian.sh "lts" "${SDKMAN_DIR}"

That's it!