I guess that the eclipse configuration that was committed into this github project is erroneous. When removing all those eclipse settings (.classpath, .project, .settings/* etc.) and then importing the project as general project, turning it into maven project with configure->Convert to Maven Project, the error is not occurring.
I guess that the eclipse configuration that was committed into this github project is erroneous. When removing all those eclipse settings (.classpath, .project, .settings/* etc.) and then importing the project as general project, turning it into maven project with configure->Convert to Maven Project, the error is not occurring.