mvnw stores maven to ~/.m2/wrapper directory. But customers could have denied access to .m2 folder. They could have allowed access only to .m2/repository, because they want to protect settings.xml file.
Our mvnw script should download maven to project directory.
Possible solution could be adding these two lines to .mvn/wrapper/maven-wrapper.properties:
This issue is regression against EAP 7.0.0 and EAP 7.1.0.DR11.