4.0.0 ml.dmlc xgboost-jvm 0.5 xgboost4j-example 0.5 jar org.apache.maven.plugins maven-assembly-plugin false ml.dmlc xgboost4j-spark 0.5 ml.dmlc xgboost4j-flink 0.5 org.apache.commons commons-lang3 3.4