4.0.0 com.baeldung maven-unused-dependencies 0.0.1-SNAPSHOT commons-collections commons-collections ${commons-collections.version} org.slf4j slf4j-api ${slf4j-api.version} org.apache.maven.plugins maven-compiler-plugin ${maven-compiler-plugin.version} 1.8 1.8 maven-dependency-plugin ${maven-dependency-plugin.version} 3.2.2 1.7.25 3.1.2 3.1