HDDS-1405. ITestOzoneContractCreate is failing. (#712)

hadoop-ozone/ozonefs/src/main/java/org/apache/hadoop/fs/ozone/BasicOzoneClientAdapterImpl.java

@@ -21,12 +21,12 @@ import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URI;
-import java.nio.file.FileAlreadyExistsException;
 import java.util.Iterator;
 
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.crypto.key.KeyProvider;
+import org.apache.hadoop.fs.FileAlreadyExistsException;
 import org.apache.hadoop.hdds.client.ReplicationFactor;
 import org.apache.hadoop.hdds.client.ReplicationType;
 import org.apache.hadoop.hdds.conf.OzoneConfiguration;