[dag block] Add some debug logs for error #159

	name: Build
	on:
	push:
	branches:
	- main
	pull_request:
	types: [ opened, synchronize, reopened ]
	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0 # Shallow clones should be disabled for a better relevancy of analysis
	- name: Set up JDK 11
	uses: actions/setup-java@v1
	with:
	java-version: 11
	- name: Cache Maven packages
	uses: actions/cache@v1
	with:
	path: ~/.m2
	key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
	restore-keys: ${{ runner.os }}-m2

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