Assert empty categories don't result in null values in bcif map #58

	name: Build and Test
	on:
	push:
	branches:
	- master
	pull_request:
	types: [opened, synchronize, reopened]
	jobs:
	build:
	name: Build and Test
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Set up JDK 21
	uses: actions/setup-java@v4
	with:
	java-version: 21
	distribution: 'temurin'
	- name: Cache Maven packages
	uses: actions/cache@v4
	with:
	path: ~/.m2
	key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
	restore-keys: ${{ runner.os }}-m2
	- name: Build and test
	run: mvn -B clean verify

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