from: flink-walkthroughs
to: flink-core
evidence:
 - file: "flink-walkthroughs/flink-walkthrough-datastream-java/src/main/resources/archetype-resources/src/main/java/FraudDetector.java"
   contains "import org.apache.flink.util.Collector;"

from: flink-walkthroughs
to: flink-core
evidence:
 - file: "flink-walkthroughs/flink-walkthrough-common/src/main/java/org/apache/flink/walkthrough/common/source/TransactionRowInputFormat.java"
   contains "import org.apache.flink.types.Row;"

from: flink-walkthroughs
to: flink-core
evidence:
 - file: "flink-walkthroughs/flink-walkthrough-common/src/main/java/org/apache/flink/walkthrough/common/sink/LoggerOutputFormat.java"
   contains "import org.apache.flink.configuration.Configuration;"