Attempt p7 in Java (2) #70

	name: Java Lint

	on:
	push:
	paths:
	- 'java/**'

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	lint:
	runs-on: ubuntu-latest

	steps:
	- name: Set up Git
	run: git config --global user.email "[email protected]" && git config --global user.name "GitHub Actions"

	- name: Checkout code
	uses: actions/checkout@v3

	- name: Set up Java
	uses: actions/setup-java@v3
	with:
	java-version: '21'
	distribution: 'adopt'

	- name: Run linter
	run: make ja_lint

	- name: Check for differences
	run: \|
	# Get the diff from the last commit to the current working tree
	if [ -n "$(git diff HEAD)" ]; then
	echo "There are changes detected:"
	git diff HEAD
	exit 1
	else
	echo "No changes detected."
	fi

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