HDFS-2864 broke ant compilation
-------------------------------

                 Key: HDFS-2888
                 URL: https://issues.apache.org/jira/browse/HDFS-2888
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: build
    Affects Versions: 0.23.0
            Reporter: Ravi Prakash


compile:
     [echo] contrib: raid
    [javac] 
<somePath>/hadoop-mapreduce-project/src/contrib/build-contrib.xml:194: warning: 
'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to 
false for repeatable builds
    [javac] Compiling 28 source files to 
<somepath>/hadoop-mapreduce-project/build/contrib/raid/classes
    [javac] 
<somepath>/hadoop-mapreduce-project/src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/datanode/RaidBlockSender.java:111:
 cannot find symbol
    [javac] symbol  : variable METADATA_VERSION
    [javac] location: class org.apache.hadoop.hdfs.server.datanode.FSDataset
    [javac]         if (version != FSDataset.METADATA_VERSION) {
    [javac]                                 ^
    [javac] 
<somepath>/hadoop-mapreduce-project/src/contrib/raid/src/java/org/apache/hadoop/raid/BlockFixer.java:649:
 cannot find symbol
    [javac] symbol  : variable METADATA_VERSION
    [javac] location: class org.apache.hadoop.hdfs.server.datanode.FSDataset
    [javac]       mdOut.writeShort(FSDataset.METADATA_VERSION);
    [javac]                                 ^
    [javac] Note: Some input files use or override a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 2 errors

BUILD FAILED



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