Add jacoco maven plugin #4

	name: Build
	on:
	push:
	branches:
	- '*'
	pull_request:
	types: [opened, synchronize, reopened]
	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0 # Shallow clones should be disabled for a better relevancy of analysis
	- name: Set up JDK 17
	uses: actions/setup-java@v4
	with:
	distribution: "temurin"
	java-version: 17
	cache: maven
	- name: Cache SonarCloud packages
	uses: actions/cache@v1
	with:
	path: ~/.sonar/cache
	key: ${{ runner.os }}-sonar
	restore-keys: ${{ runner.os }}-sonar
	- name: Build and analyze
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # Needed to get PR information, if any
	SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
	run: cd pf4j-spring && mvn -B verify org.sonarsource.scanner.maven:sonar-maven-plugin:sonar

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