eu.dnetlib dnet45-parent 1.0.0 4.0.0 eu.dnetlib dnet-openaire-data-protos jar 3.9.4-proto250 2.4.1 dnet4-bootstrap-release http://maven.research-infrastructures.eu/nexus/content/repositories/dnet4-bootstrap-release/ eu.dnetlib protoc-jar-maven-plugin 1.1.0 generate-sources run ${google.protobuf.version} src/main/resources src/gen/java com.google.protobuf protobuf-java ${google.protobuf.version}