HADOOP-16202. Enhanced openFile(): hadoop-azure changes. (#2584/4)

Stops the abfs connector warning if openFile().withFileStatus()
is invoked with a FileStatus is not an abfs VersionedFileStatus.

Contributed by Steve Loughran.

Change-Id: I85076b365eb30aaef2ed35139fa8714efd4d048e

hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystemStore.java

@@ -766,7 +766,7 @@ public class AzureBlobFileSystemStore implements Closeable, ListingSupport {
         eTag = ((VersionedFileStatus) fileStatus).getVersion();
       } else {
         if (fileStatus != null) {
-          LOG.warn(
+          LOG.debug(
               "Fallback to getPathStatus REST call as provided filestatus "
                   + "is not of type VersionedFileStatus");
         }

hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azurebfs/contract/ITestAbfsFileSystemContractSeek.java

@@ -37,7 +37,7 @@ import static org.apache.hadoop.fs.azurebfs.constants.ConfigurationKeys.AZURE_RE
 import static org.apache.hadoop.fs.azurebfs.constants.FileSystemConfigurations.MIN_BUFFER_SIZE;
 import static org.apache.hadoop.fs.contract.ContractTestUtils.createFile;
 import static org.apache.hadoop.fs.contract.ContractTestUtils.dataset;
-import static org.apache.hadoop.fs.impl.FutureIOSupport.awaitFuture;
+import static org.apache.hadoop.util.functional.FutureIO.awaitFuture;
 
 /**
  * Contract test for seek operation.