4.0.0 graphhopper-example 11.1-osm-reader-callbacks-1 jar GraphHopper Example Isochrone calculation with GraphHopper com.graphhopper graphhopper-parent 11.1-osm-reader-callbacks-1 com.graphhopper graphhopper-core ${project.parent.version} org.slf4j slf4j-api ch.qos.logback logback-classic 1.2.13