[Backport 2.3] Set docData to empty string if actual is null #2727

	name: Test Workflow
	# This workflow is triggered on pull requests and pushes to main or an OpenSearch release branch
	on:
	pull_request:
	branches:
	- "*"
	push:
	branches:
	- "*"

	jobs:
	build:
	strategy:
	matrix:
	java: [11, 17]
	# Job name
	name: Build Alerting with JDK ${{ matrix.java }}
	# This job runs on Linux
	runs-on: ubuntu-latest
	steps:
	# This step uses the checkout Github action: https://github.com/actions/checkout
	- name: Checkout Branch
	uses: actions/checkout@v2
	# This step uses the setup-java Github action: https://github.com/actions/setup-java
	- name: Set Up JDK ${{ matrix.java }}
	uses: actions/setup-java@v1
	with:
	java-version: ${{ matrix.java }}
	- name: Build and run with Gradle
	run: ./gradlew build
	- name: Create Artifact Path
	run: \|
	mkdir -p alerting-artifacts
	cp ./alerting/build/distributions/*.zip alerting-artifacts
	# This step uses the codecov-action Github action: https://github.com/codecov/codecov-action
	- name: Upload Coverage Report
	uses: codecov/codecov-action@v1
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	# This step uses the upload-artifact Github action: https://github.com/actions/upload-artifact
	- name: Upload Artifacts
	uses: actions/upload-artifact@v1
	with:
	name: alerting-plugin
	path: alerting-artifacts

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