From 2d0b6ab65dac6d7ccfa899eeb45374cf8e3f9d50 Mon Sep 17 00:00:00 2001
From: Akira Ajisaka <aajisaka@apache.org>
Date: Mon, 19 Jun 2017 19:09:18 +0900
Subject: [PATCH] HADOOP-14538. Fix TestFilterFileSystem and TestHarFileSystem
 failures after DistributedFileSystem.append API. Contributed by Lei (Eddy)
 Xu.

(cherry picked from commit 7ade5124b8b6c52a084ec187c531017eee0f1884)
---
 .../src/main/java/org/apache/hadoop/fs/FilterFileSystem.java | 5 +++++
 .../src/main/java/org/apache/hadoop/fs/HarFileSystem.java    | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FilterFileSystem.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FilterFileSystem.java
index e9400654ace..954a041af1f 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FilterFileSystem.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FilterFileSystem.java
@@ -670,4 +670,9 @@ public Collection<FileStatus> getTrashRoots(boolean allUsers) {
   public FSDataOutputStreamBuilder createFile(Path path) {
     return fs.createFile(path);
   }
+
+  @Override
+  public FSDataOutputStreamBuilder appendFile(Path path) {
+    return fs.appendFile(path);
+  }
 }
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/HarFileSystem.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/HarFileSystem.java
index ec3a4570dd9..b5d83f2f9cf 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/HarFileSystem.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/HarFileSystem.java
@@ -1273,4 +1273,9 @@ public short getDefaultReplication(Path f) {
   public FSDataOutputStreamBuilder createFile(Path path) {
     return fs.createFile(path);
   }
+
+  @Override
+  public FSDataOutputStreamBuilder appendFile(Path path) {
+    return fs.appendFile(path);
+  }
 }