maven-classifier com.baeldung 0.0.1-SNAPSHOT 4.0.0 maven-classifier-example-consumer 8 8 com.baeldung maven-classifier-example-provider 0.0.1-SNAPSHOT com.baeldung maven-classifier-example-provider 0.0.1-SNAPSHOT arbitrary com.baeldung maven-classifier-example-provider 0.0.1-SNAPSHOT sources com.baeldung maven-classifier-example-provider 0.0.1-SNAPSHOT tests