* Upgraded to PMD 7.0.0. #344

	name: Build
	on: [ push ]
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	build:
	name: Build
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ windows-latest, ubuntu-latest, macos-latest ]
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-java@v4
	with:
	distribution: zulu
	java-version: 21

	- name: Cache Dependencies
	uses: actions/cache@v4
	with:
	# Avoid caching generated artifacts
	path: \|
	~/.m2/repository/*
	!~/.m2/repository/com/github/cowwoc/requirements
	key: ${{ runner.OS }}-maven-${{ hashFiles('**/pom.xml') }}

	# Maven command-line options:
	# --batch-mode: recommended in CI to inform maven to not run in interactive mode (less logs)
	# -V: strongly recommended in CI, will display the JDK and Maven versions in use.
	# Very useful to be quickly sure the selected versions were the ones you think.
	# -e: Display stack-traces on failure
	- name: Build
	run: ./mvnw install --batch-mode -V -e

Provide feedback