HBASE-22476 FSDataInputStream is not closed. (#263)

HBASE-22476 HBase-backup module's class "org.apache.hadoop.hbase.backup.impl.BackupManifest" FSDataInputStream is not close.

Signed-off-by: Duo Zhang <zhangduo@apache.org>

Author: lixiaobao

hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupManifest.java

@@ -434,10 +434,13 @@ public BackupManifest(FileSystem fs, Path backupPath) throws BackupException {
       for (FileStatus subFile : subFiles) {
         if (subFile.getPath().getName().equals(MANIFEST_FILE_NAME)) {
           // load and set manifest field from file content
-          FSDataInputStream in = fs.open(subFile.getPath());
           long len = subFile.getLen();
           byte[] pbBytes = new byte[(int) len];
-          in.readFully(pbBytes);
+          try (FSDataInputStream in = fs.open(subFile.getPath())) {
+            in.readFully(pbBytes);
+          } catch (IOException e) {
+            throw new BackupException(e.getMessage());
+          }
           BackupProtos.BackupImage proto = null;
           try {
             proto = BackupProtos.BackupImage.parseFrom(pbBytes);