From 1bbebd1e3ff15a4804d51d26a6821a3e227e6ecb Mon Sep 17 00:00:00 2001
From: Jitendra Nath Pandey <jitendra@apache.org>
Date: Tue, 10 May 2011 18:01:39 +0000
Subject: [PATCH] HADOOP-7268. FileContext.getLocalFSFileContext() behavior
 needs to be fixed w.r.t tokens. Contributed by jitendra.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1101570 13f79535-47bb-0310-9956-ffa450edef68
---
 CHANGES.txt                                               | 3 +++
 src/java/org/apache/hadoop/fs/FileContext.java            | 6 +-----
 .../hadoop/fs/TestLocalFSFileContextMainOperations.java   | 8 ++++++++
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/CHANGES.txt b/CHANGES.txt
index 7bc0fe7d6b..d141262a6d 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -188,6 +188,9 @@ Trunk (unreleased changes)
 
     HADOOP-7261. Disable IPV6 for junit tests. (suresh)
 
+    HADOOP-7268. FileContext.getLocalFSFileContext() behavior needs to be fixed
+    w.r.t tokens. (jitendra)
+
 Release 0.22.0 - Unreleased
 
   INCOMPATIBLE CHANGES
diff --git a/src/java/org/apache/hadoop/fs/FileContext.java b/src/java/org/apache/hadoop/fs/FileContext.java
index 7481fb9d09..9d5f8ac221 100644
--- a/src/java/org/apache/hadoop/fs/FileContext.java
+++ b/src/java/org/apache/hadoop/fs/FileContext.java
@@ -169,7 +169,6 @@ public final class FileContext {
   
   public static final Log LOG = LogFactory.getLog(FileContext.class);
   public static final FsPermission DEFAULT_PERM = FsPermission.getDefault();
-  volatile private static FileContext localFsSingleton = null;
   
   /**
    * List of files that should be deleted on JVM shutdown.
@@ -388,10 +387,7 @@ public final class FileContext {
    */
   public static FileContext getLocalFSFileContext()
       throws UnsupportedFileSystemException {
-    if (localFsSingleton == null) {
-      localFsSingleton = getFileContext(FsConstants.LOCAL_FS_URI); 
-    }
-    return localFsSingleton;
+    return getFileContext(FsConstants.LOCAL_FS_URI);
   }
 
   /**
diff --git a/src/test/core/org/apache/hadoop/fs/TestLocalFSFileContextMainOperations.java b/src/test/core/org/apache/hadoop/fs/TestLocalFSFileContextMainOperations.java
index fc05634978..901b6c96ea 100644
--- a/src/test/core/org/apache/hadoop/fs/TestLocalFSFileContextMainOperations.java
+++ b/src/test/core/org/apache/hadoop/fs/TestLocalFSFileContextMainOperations.java
@@ -21,7 +21,9 @@ package org.apache.hadoop.fs;
 import java.io.IOException;
 
 import org.apache.hadoop.conf.Configuration;
+import org.junit.Assert;
 import org.junit.Before;
+import org.junit.Test;
 
 public class TestLocalFSFileContextMainOperations extends FileContextMainOperationsBaseTest {
 
@@ -37,4 +39,10 @@ public class TestLocalFSFileContextMainOperations extends FileContextMainOperati
       wd = FileSystem.getLocal(new Configuration()).getWorkingDirectory();
     return wd;
   }
+  
+  @Test
+  public void testFileContextNoCache() throws UnsupportedFileSystemException {
+    FileContext fc1 = FileContext.getLocalFSFileContext();
+    Assert.assertTrue(fc1 != fc);
+  }
 }