[Feature] add external-reference in response #230

	# This workflow will build a Java project with Maven
	# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven

	name: Java CI with Maven

	on:
	push:
	branches: [ master, develop ]
	pull_request:
	branches: [ master, develop ]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Set up JDK 1.8
	uses: actions/setup-java@v1
	with:
	java-version: 1.8

	- name: Compile
	run: mvn compile

	- name: Run tests
	run: mvn test
	env:
	ACCESS_TOKEN: ${{ secrets.ACCESS_TOKEN_V2 }}
	PUBLIC_KEY: ${{ secrets.PUBLIC_KEY }}

	# Upload coverage result
	- name: Upload Coverage
	uses: codecov/codecov-action@v1
	with:
	file: ./target/site/jacoco/jacoco.xml

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