HADOOP-9607. Fixes in Javadoc build. Contributed by Timothy St. Clair

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HADOOP-9605. Update junit dependency. Contributed by Timothy St. Clair.

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YARN-716. Making ApplicationID immutable. Contributed by Siddharth Seth.
MAPREDUCE-5282. Updating MR App to use immutable ApplicationID after YARN-716. Contributed by Siddharth Seth.
svn merge --ignore-ancestry -c 1487994 ../../trunk/


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MAPREDUCE-5261. Reverting the patch as it is no longer needed.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1488033 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5228. Bring back FileInputFormat.Counter and FileOuputFormat.Counter for binary compatibility with 1.x mapred APIs. Contributed by Mayank Bansal.
svn merge --ignore-ancestry -c 1488060 ../../trunk/


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Merged HADOOP-7391  svn merge -c 1488069


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YARN-684. ContainerManager.startContainer should use ContainerTokenIdentifier instead of the entire Container. Contributed by Vinod Kumar Vavilapalli.


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merge MAPREDUCE-5286 from trunk. Change MapReduce to use ContainerTokenIdentifier instead of the entire Container in the startContainer call - YARN-684. Contributed by Vinod Kumar Vavilapalli.


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Merge r1480838 and r1480840 from trunk for merging HDFS Snapshot feature.


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svn merge -c 1483150 from trunk for HDFS-4826. TestNestedSnapshots times out due to repeated slow edit log flushes when running on virtualized disk.


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svn merge -c 1487643 from trunk for HDFS-4842. Identify the correct prior snapshot when deleting a snapshot under a renamed subtree.


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svn merge -c 1487647 from trunk for HDFS-4846. Clean up snapshot CLI commands output stacktrace for invalid arguments.


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svn merge -c 1487655 from trunk for HDFS-4857. Snapshot.Root and AbstractINodeDiff#snapshotINode should not be put into INodeMap when loading FSImage.


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svn merge -c 1487698 from trunk for HDFS-4863. The root directory should be added to the snapshottable directory list while loading fsimage.


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svn merge -c 1487942 from trunk for HDFS-4848. copyFromLocal and renaming a file to ".snapshot" should output hat ".snapshot" is a reserved name.


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MAPREDUCE-5176. Add annotation for tagging tasks as responsive to
preemption. Contributed by Carlo Curino, cdouglas


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YARN-392. Make it possible to specify hard locality constraints in resource requests. (sandyr via tucu)

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MAPREDUCE-5275. Bring back a couple of APIs in mapreduce.security.TokenCache for binary compatibility with 1.x mapreduce APIs. Contributed by Mayank Bansal.
svn merge --ignore-ancestry -c 1488369 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1488370 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5231. Bring back a constructor in mapred's DBInputFormat.DBRecordReader for binary compatibility with 1.x mapred APIs. Contributed by Zhijie Shen.
svn merge --ignore-ancestry -c 1488436 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1488437 13f79535-47bb-0310-9956-ffa450edef68
merge YARN-735 from trunk. Make ApplicationAttemptId, ContainerId and NodeId immutable. Contributed by Jian He.


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