* HDFS-14492. Snapshot memory leak. Contributed by Wei-Chiu Chuang. Change-Id: I9e5e450c07ad70aa1905973896c4f627042dbd37 * Fix checkstyle Change-Id: I16d4bd4f03a971e1ed36cf57d89dc42357ef8fbf (cherry picked from commit 6ef6594c7ee09b561e42c16ce4e91c0479908ad8) (cherry picked from commit 570ffa1cd67990ef0e49c149abc04a92ed3670ac)