Fix IndexReader ref leak when Lucene index modified and read in transaction #855

	# 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 8 CI with Maven

	on:
	push:
	branches: [ develop, 3.1.x, 3.0.x ]
	pull_request:
	branches: [ develop, 3.1.x, 3.0.x ]
	schedule:
	- cron: 0 5 * * 1

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Set up JDK 8
	uses: actions/setup-java@v2
	with:
	java-version: '8'
	distribution: 'adopt'
	# Step that does that actual cache save and restore
	- name: Cache
	uses: actions/cache@v1
	with:
	path: ~/.m2/repository
	key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
	restore-keys: \|
	${{ runner.os }}-maven-
	- name: Build with Maven
	run: mvn -B package --file pom.xml

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