Pom files for maven-release seem to be installed with different name than what is advertised in add_to_maven_depmap macro call. Missing/wrong pom filenames are:
maven-release.noarch: W: pom-not-found JPP-maven-release-manager.pom
maven-release.noarch: W: pom-not-found JPP-maven-release-plugin.pom
This is a false positive, as JPP-maven-release-manager.pom and JPP-maven-release-plugin.pom are installed respectively in maven-release-manager and maven-release-plugin rpms, which are modules of maven-release parent pom.