r2rml-api-parent eu.optique-project 0.8.0 ../pom.xml 4.0.0 r2rml-api-core 0.8.0 Optique R2RML API - Core org.apache.commons commons-rdf-api org.slf4j slf4j-api 1.6.4 ch.qos.logback logback-classic 1.2.0 ch.qos.logback logback-core 1.2.0 junit junit 4.13.1 test