import org.apache.commons.configuration2.tree.MergeCombiner;
import org.apache.commons.configuration2.tree.OverrideCombiner;
import org.apache.commons.configuration2.tree.UnionCombiner;
-import static org.onap.config.Constants.LOAD_ORDER_KEY;
import org.onap.config.ConfigurationUtils;
import org.onap.config.type.ConfigurationMode;
import java.util.HashMap;
import java.util.*;
+import static org.onap.config.Constants.LOAD_ORDER_KEY;
+
/**
* The type Aggregate configuration.
*/