[Backport 2.x] Defaults anomaly grade to 0 if negative #311

	name: Build and Test Anomaly detection
	on:
	push:
	branches:
	- "*"
	pull_request:
	branches:
	- "*"

	jobs:
	Build-ad-windows:
	strategy:
	matrix:
	java: [ 11, 17 ]
	name: Build and Test Anomaly Detection Plugin on Windows
	runs-on: windows-latest
	steps:
	- name: Setup Java ${{ matrix.java }}
	uses: actions/setup-java@v1
	with:
	java-version: ${{ matrix.java }}
	- name: Checkout Anomaly Detection
	uses: actions/checkout@v2

	- name: Build and Run Tests
	run: \|
	./gradlew build
	- name: Publish to Maven Local
	run: \|
	./gradlew publishToMavenLocal
	- name: Multi Nodes Integration Testing
	run: \|
	./gradlew integTest -PnumNodes=3
	- name: Upload Coverage Report
	uses: codecov/codecov-action@v1
	with:
	file: ./build/reports/jacoco/test/jacocoTestReport.xml
	flags: plugin
	Build-ad:
	strategy:
	matrix:
	java: [11,17]
	os: [ubuntu-latest, macos-latest]
	fail-fast: false

	name: Build and Test Anomaly detection Plugin
	runs-on: ${{ matrix.os }}

	steps:
	- name: Setup Java ${{ matrix.java }}
	uses: actions/setup-java@v1
	with:
	java-version: ${{ matrix.java }}

	- name: Checkout AD
	uses: actions/checkout@v2

	- name: Assemble anomaly-detection
	run: \|
	./gradlew assemble
	- name: Build and Run Tests
	run: \|
	./gradlew build -Dtest.logs=true
	- name: Publish to Maven Local
	run: \|
	./gradlew publishToMavenLocal
	- name: Multi Nodes Integration Testing
	run: \|
	./gradlew integTest -PnumNodes=3
	- name: Upload Coverage Report
	uses: codecov/codecov-action@v1
	with:
	file: ./build/reports/jacoco/test/jacocoTestReport.xml
	flags: plugin

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