Class Hierarchy (Hadoop 1.2.1 API)
Date: 2013-07-22

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## Hierarchy For All Packages

Package Hierarchies:
  org.apache.hadoop, org.apache.hadoop.classification, org.apache.hadoop.conf, org.apache.hadoop.contrib.failmon, org.apache.hadoop.contrib.index.example, org.apache.hadoop.contrib.index.lucene, org.apache.hadoop.contrib.index.main, org.apache.hadoop.contrib.index.mapred, org.apache.hadoop.contrib.utils.join, org.apache.hadoop.examples, org.apache.hadoop.examples.dancing, org.apache.hadoop.examples.terasort, org.apache.hadoop.filecache, org.apache.hadoop.fs, org.apache.hadoop.fs.ftp, org.apache.hadoop.fs.kfs, org.apache.hadoop.fs.permission, org.apache.hadoop.fs.s3, org.apache.hadoop.fs.s3native, org.apache.hadoop.fs.shell, org.apache.hadoop.http, org.apache.hadoop.http.lib, org.apache.hadoop.io, org.apache.hadoop.io.compress, org.apache.hadoop.io.compress.bzip2, org.apache.hadoop.io.compress.snappy, org.apache.hadoop.io.compress.zlib, org.apache.hadoop.io.file.tfile, org.apache.hadoop.io.nativeio, org.apache.hadoop.io.retry, org.apache.hadoop.io.serializer, org.apache.hadoop.ipc, org.apache.hadoop.ipc.metrics, org.apache.hadoop.jmx, org.apache.hadoop.log, org.apache.hadoop.log.metrics, org.apache.hadoop.mapred, org.apache.hadoop.mapred.jobcontrol, org.apache.hadoop.mapred.join, org.apache.hadoop.mapred.lib, org.apache.hadoop.mapred.lib.aggregate, org.apache.hadoop.mapred.lib.db, org.apache.hadoop.mapred.pipes, org.apache.hadoop.mapred.tools, org.apache.hadoop.mapreduce, org.apache.hadoop.mapreduce.lib.db, org.apache.hadoop.mapreduce.lib.fieldsel, org.apache.hadoop.mapreduce.lib.input, org.apache.hadoop.mapreduce.lib.jobcontrol, org.apache.hadoop.mapreduce.lib.map, org.apache.hadoop.mapreduce.lib.output, org.apache.hadoop.mapreduce.lib.partition, org.apache.hadoop.mapreduce.lib.reduce, org.apache.hadoop.mapreduce.security, org.apache.hadoop.mapreduce.security.token, org.apache.hadoop.mapreduce.security.token.delegation, org.apache.hadoop.mapreduce.server.jobtracker, org.apache.hadoop.mapreduce.server.tasktracker, org.apache.hadoop.mapreduce.server.tasktracker.userlogs, org.apache.hadoop.mapreduce.split, org.apache.hadoop.metrics, org.apache.hadoop.metrics.file, org.apache.hadoop.metrics.ganglia, org.apache.hadoop.metrics.jvm, org.apache.hadoop.metrics.spi, org.apache.hadoop.metrics.util, org.apache.hadoop.metrics2, org.apache.hadoop.metrics2.filter, org.apache.hadoop.metrics2.impl, org.apache.hadoop.metrics2.lib, org.apache.hadoop.metrics2.sink, org.apache.hadoop.metrics2.sink.ganglia, org.apache.hadoop.metrics2.source, org.apache.hadoop.metrics2.util, org.apache.hadoop.net, org.apache.hadoop.record, org.apache.hadoop.record.compiler, org.apache.hadoop.record.compiler.ant, org.apache.hadoop.record.compiler.generated, org.apache.hadoop.record.meta, org.apache.hadoop.security, org.apache.hadoop.security.authentication.client, org.apache.hadoop.security.authentication.server, org.apache.hadoop.security.authentication.util, org.apache.hadoop.security.authorize, org.apache.hadoop.security.token, org.apache.hadoop.security.token.delegation, org.apache.hadoop.streaming, org.apache.hadoop.streaming.io, org.apache.hadoop.typedbytes, org.apache.hadoop.util, org.apache.hadoop.util.bloom, org.apache.hadoop.util.hash

## Class Hierarchy

- java.lang.Object
  - org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager.DelegationTokenInformation
  - org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSelector<TokenIdent> (implements org.apache.hadoop.security.token.TokenSelector<T>)
    - org.apache.hadoop.mapreduce.security.token.delegation.DelegationTokenSelector
  - org.apache.hadoop.metrics2.sink.ganglia.AbstractGangliaSink (implements org.apache.hadoop.metrics2.MetricsSink)
    - org.apache.hadoop.metrics2.sink.ganglia.GangliaSink30
      - org.apache.hadoop.metrics2.sink.ganglia.GangliaSink31
  - org.mortbay.component.AbstractLifeCycle (implements org.mortbay.component.LifeCycle)
    - org.mortbay.jetty.AbstractBuffers (implements org.mortbay.io.Buffers)
      - org.mortbay.jetty.AbstractConnector (implements org.mortbay.jetty.Connector)
        - org.mortbay.jetty.bio.SocketConnector
          - org.mortbay.jetty.security.SslSocketConnector
            - org.apache.hadoop.security.Krb5AndCertsSslSocketConnector
  - java.util.AbstractMap<K,V> (implements java.util.Map<K,V>)
    - java.util.TreeMap<K,V> (implements java.lang.Cloneable, java.util.NavigableMap<K,V>, java.io.Serializable)
      - org.apache.hadoop.metrics.spi.AbstractMetricsContext.MetricMap
      - org.apache.hadoop.metrics.spi.AbstractMetricsContext.TagMap
  - org.apache.hadoop.io.AbstractMapWritable (implements org.apache.hadoop.conf.Configurable, org.apache.hadoop.io.Writable)
    - org.apache.hadoop.io.MapWritable (implements java.util.Map<K,V>)
    - org.apache.hadoop.io.SortedMapWritable (implements java.util.SortedMap<K,V>)
  - org.apache.hadoop.metrics.spi.AbstractMetricsContext (implements org.apache.hadoop.metrics.MetricsContext)
    - org.apache.hadoop.metrics.spi.CompositeContext
    - org.apache.hadoop.metrics.file.FileContext
    - org.apache.hadoop.metrics.ganglia.GangliaContext
      - org.apache.hadoop.metrics.ganglia.GangliaContext31
    - org.apache.hadoop.metrics.spi.NoEmitMetricsContext
    - org.apache.hadoop.metrics.spi.NullContext
    - org.apache.hadoop.metrics.spi.NullContextWithUpdateThread
  - org.apache.hadoop.metrics2.lib.AbstractMetricsSource (implements org.apache.hadoop.metrics2.MetricsSource)
    - org.apache.hadoop.ipc.metrics.RpcInstrumentation.Detailed
  - org.apache.hadoop.security.authorize.AccessControlList (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.examples.AggregateWordCount
  - org.apache.hadoop.examples.AggregateWordHistogram
  - org.apache.hadoop.contrib.failmon.Anonymizer
  - org.apache.log4j.AppenderSkeleton (implements org.apache.log4j.Appender, org.apache.log4j.spi.OptionHandler)
    - org.apache.hadoop.log.metrics.EventCounter
      - org.apache.hadoop.log.EventCounter
      - org.apache.hadoop.metrics.jvm.EventCounter
    - org.apache.log4j.WriterAppender
      - org.apache.log4j.FileAppender
        - org.apache.hadoop.mapred.TaskLogAppender
  - org.apache.hadoop.mapred.join.ArrayListBackedIterator<X> (implements org.apache.hadoop.mapred.join.ResetableIterator<T>)
  - org.apache.hadoop.contrib.utils.join.ArrayListBackedIterator (implements org.apache.hadoop.contrib.utils.join.ResetableIterator)
  - org.apache.hadoop.io.ArrayWritable (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.security.authentication.client.AuthenticatedURL
  - org.apache.hadoop.security.authentication.client.AuthenticatedURL.Token
  - org.apache.hadoop.security.authentication.server.AuthenticationFilter (implements javax.servlet.Filter)
  - org.apache.hadoop.security.authentication.server.AuthenticationToken (implements java.security.Principal)
  - org.apache.hadoop.mapreduce.lib.db.BigDecimalSplitter (implements org.apache.hadoop.mapreduce.lib.db.DBSplitter)
    - org.apache.hadoop.mapreduce.lib.db.TextSplitter
  - org.apache.hadoop.io.BinaryComparable (implements java.lang.Comparable<T>)
    - org.apache.hadoop.io.BytesWritable (implements org.apache.hadoop.io.WritableComparable<T>)
      - org.apache.hadoop.typedbytes.TypedBytesWritable
    - org.apache.hadoop.io.Text (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.record.BinaryRecordInput (implements org.apache.hadoop.record.RecordInput)
  - org.apache.hadoop.record.BinaryRecordOutput (implements org.apache.hadoop.record.RecordOutput)
  - org.apache.hadoop.fs.s3.Block
  - org.apache.hadoop.fs.BlockLocation (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.io.BloomMapFile
  - org.apache.hadoop.mapreduce.lib.db.BooleanSplitter (implements org.apache.hadoop.mapreduce.lib.db.DBSplitter)
  - org.apache.hadoop.io.BooleanWritable (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.record.Buffer (implements java.lang.Cloneable, java.lang.Comparable<T>)
  - org.apache.hadoop.io.compress.zlib.BuiltInGzipDecompressor (implements org.apache.hadoop.io.compress.Decompressor)
  - org.apache.hadoop.io.file.tfile.ByteArray (implements org.apache.hadoop.io.file.tfile.RawComparable)
  - org.apache.hadoop.io.ByteWritable (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.io.compress.BZip2Codec (implements org.apache.hadoop.io.compress.SplittableCompressionCodec)
  - org.apache.hadoop.io.compress.bzip2.BZip2DummyCompressor (implements org.apache.hadoop.io.compress.Compressor)
  - org.apache.hadoop.io.compress.bzip2.BZip2DummyDecompressor (implements org.apache.hadoop.io.compress.Decompressor)
  - org.apache.hadoop.net.CachedDNSToSwitchMapping (implements org.apache.hadoop.net.DNSToSwitchMapping)
    - org.apache.hadoop.net.ScriptBasedMapping (implements org.apache.hadoop.conf.Configurable)
  - org.apache.hadoop.mapred.lib.ChainMapper (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
  - org.apache.hadoop.mapred.lib.ChainReducer (implements org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
  - org.apache.hadoop.util.ChecksumUtil
  - org.apache.hadoop.fs.permission.ChmodParser
  - org.apache.hadoop.util.ClassUtil
  - org.apache.hadoop.mapred.CleanupQueue
  - org.apache.hadoop.ipc.Client
  - org.apache.hadoop.mapreduce.ClusterMetrics (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.ClusterStatus (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.record.compiler.CodeBuffer
  - org.apache.hadoop.io.compress.CodecPool
  - org.apache.hadoop.mapred.lib.CombineFileRecordReader<K,V> (implements org.apache.hadoop.mapred.RecordReader<K,V>)
  - org.apache.hadoop.mapred.lib.CombineFileSplit (implements org.apache.hadoop.mapred.InputSplit)
    - org.apache.hadoop.mapred.MultiFileSplit
  - org.apache.hadoop.fs.shell.CommandFormat
  - org.apache.hadoop.fs.CommonConfigurationKeys
  - org.apache.hadoop.mapred.join.CompositeInputFormat<K> (implements org.apache.hadoop.mapred.join.ComposableInputFormat<K,V>)
  - org.apache.hadoop.mapred.join.CompositeInputSplit (implements org.apache.hadoop.mapred.InputSplit)
  - org.apache.hadoop.mapred.join.CompositeRecordReader<K,V,X> (implements org.apache.hadoop.conf.Configurable)
    - org.apache.hadoop.mapred.join.JoinRecordReader<K> (implements org.apache.hadoop.mapred.join.ComposableRecordReader<K,V>)
      - org.apache.hadoop.mapred.join.InnerJoinRecordReader<K>
      - org.apache.hadoop.mapred.join.OuterJoinRecordReader<K>
    - org.apache.hadoop.mapred.join.MultiFilterRecordReader<K,V> (implements org.apache.hadoop.mapred.join.ComposableRecordReader<K,V>)
      - org.apache.hadoop.mapred.join.OverrideRecordReader<K,V>
  - org.apache.hadoop.io.CompressedWritable (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.io.compress.CompressionCodecFactory
  - org.apache.hadoop.conf.Configuration (implements java.lang.Iterable<T>, org.apache.hadoop.io.Writable)
    - org.apache.hadoop.mapred.JobConf
  - org.apache.hadoop.conf.Configuration.IntegerRanges
  - org.apache.hadoop.conf.Configured (implements org.apache.hadoop.conf.Configurable)
    - org.apache.hadoop.fs.shell.Command
      - org.apache.hadoop.fs.shell.Count
    - org.apache.hadoop.examples.DBCountPageView (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.dancing.DistributedPentomino (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.fs.FileSystem (implements java.io.Closeable)
      - org.apache.hadoop.fs.FilterFileSystem
        - org.apache.hadoop.fs.ChecksumFileSystem
          - org.apache.hadoop.fs.InMemoryFileSystem
          - org.apache.hadoop.fs.LocalFileSystem
        - org.apache.hadoop.fs.HarFileSystem
      - org.apache.hadoop.fs.ftp.FTPFileSystem
      - org.apache.hadoop.fs.kfs.KosmosFileSystem
      - org.apache.hadoop.fs.s3native.NativeS3FileSystem
      - org.apache.hadoop.fs.RawLocalFileSystem
      - org.apache.hadoop.fs.s3.S3FileSystem
    - org.apache.hadoop.fs.FsShell (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.Grep (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.mapreduce.lib.partition.InputSampler<K,V> (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.mapred.JobClient (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.Join (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.util.MemoryCalculatorPlugin
      - org.apache.hadoop.util.LinuxMemoryCalculatorPlugin
    - org.apache.hadoop.fs.s3.MigrationTool (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.mapred.tools.MRAdmin (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.MultiFileWordCount (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.PiEstimator (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.RandomTextWriter (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.RandomWriter (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.util.ResourceCalculatorPlugin
      - org.apache.hadoop.util.LinuxResourceCalculatorPlugin
    - org.apache.hadoop.io.serializer.SerializationFactory
    - org.apache.hadoop.examples.SleepJob (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>, org.apache.hadoop.mapred.Partitioner<K2,V2>, org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>, org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.SleepJob.SleepInputFormat (implements org.apache.hadoop.mapred.InputFormat<K,V>)
    - org.apache.hadoop.examples.Sort<K,V> (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.mapred.pipes.Submitter (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.terasort.TeraGen (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.terasort.TeraSort (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.examples.terasort.TeraValidate (implements org.apache.hadoop.util.Tool)
    - org.apache.hadoop.fs.Trash
    - org.apache.hadoop.io.serializer.WritableSerialization (implements org.apache.hadoop.io.serializer.Serialization<T>)
  - org.apache.hadoop.record.compiler.Consts
  - org.apache.hadoop.fs.ContentSummary (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.metrics.ContextFactory
  - org.apache.hadoop.contrib.failmon.Continuous
  - org.apache.hadoop.metrics2.util.Contracts
  - org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob
  - org.apache.hadoop.mapreduce.Counter (implements org.apache.hadoop.io.Writable)
    - org.apache.hadoop.mapred.Counters.Counter
  - org.apache.hadoop.mapreduce.CounterGroup (implements java.lang.Iterable<T>, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.Counters (implements java.lang.Iterable<T>, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapreduce.Counters (implements java.lang.Iterable<T>, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.Counters.Group (implements java.lang.Iterable<T>, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.security.Credentials (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.record.CsvRecordInput (implements org.apache.hadoop.record.RecordInput)
  - org.apache.hadoop.record.CsvRecordOutput (implements org.apache.hadoop.record.RecordOutput)
  - org.apache.hadoop.util.CyclicIteration<K,V> (implements java.lang.Iterable<T>)
  - org.apache.hadoop.examples.dancing.DancingLinks<ColumnName>
  - org.apache.hadoop.util.DataChecksum (implements java.util.zip.Checksum)
  - org.apache.hadoop.contrib.utils.join.DataJoinJob
  - org.apache.hadoop.mapred.lib.db.DBConfiguration
  - org.apache.hadoop.mapreduce.lib.db.DBConfiguration
  - org.apache.hadoop.mapred.lib.db.DBInputFormat<T> (implements org.apache.hadoop.mapred.InputFormat<K,V>, org.apache.hadoop.mapred.JobConfigurable)
  - org.apache.hadoop.mapred.lib.db.DBInputFormat.DBInputSplit (implements org.apache.hadoop.mapred.InputSplit)
  - org.apache.hadoop.mapred.lib.db.DBInputFormat.DBRecordReader (implements org.apache.hadoop.mapred.RecordReader<K,V>)
  - org.apache.hadoop.mapred.lib.db.DBInputFormat.NullDBWritable (implements org.apache.hadoop.mapred.lib.db.DBWritable, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapreduce.lib.db.DBInputFormat.NullDBWritable (implements org.apache.hadoop.mapreduce.lib.db.DBWritable, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.lib.db.DBOutputFormat<K,V> (implements org.apache.hadoop.mapred.OutputFormat<K,V>)
  - org.apache.hadoop.mapred.lib.db.DBOutputFormat.DBRecordWriter (implements org.apache.hadoop.mapred.RecordWriter<K,V>)
  - org.apache.hadoop.io.compress.DefaultCodec (implements org.apache.hadoop.io.compress.CompressionCodec, org.apache.hadoop.conf.Configurable)
    - org.apache.hadoop.io.compress.GzipCodec
  - org.apache.hadoop.mapred.DefaultJobHistoryParser
  - org.apache.hadoop.io.DefaultStringifier<T> (implements org.apache.hadoop.io.Stringifier<T>)
  - java.util.zip.Deflater
    - org.apache.hadoop.io.compress.zlib.BuiltInZlibDeflater (implements org.apache.hadoop.io.compress.Compressor)
  - org.apache.hadoop.mapred.lib.DelegatingInputFormat<K,V> (implements org.apache.hadoop.mapred.InputFormat<K,V>)
  - org.apache.hadoop.mapred.lib.DelegatingMapper<K1,V1,K2,V2> (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
  - org.apache.hadoop.security.token.delegation.DelegationKey (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapreduce.security.token.DelegationTokenRenewal
  - org.apache.hadoop.io.serializer.DeserializerComparator<T> (implements org.apache.hadoop.io.RawComparator<T>)
    - org.apache.hadoop.io.serializer.JavaSerializationComparator<T>
  - java.util.Dictionary<K,V>
    - java.util.Hashtable<K,V> (implements java.lang.Cloneable, java.util.Map<K,V>, java.io.Serializable)
      - java.util.Properties
        - org.apache.hadoop.streaming.Environment
  - org.apache.lucene.store.Directory
    - org.apache.hadoop.contrib.index.lucene.FileSystemDirectory
  - org.apache.hadoop.util.DiskChecker
  - org.apache.hadoop.filecache.DistributedCache
  - org.apache.hadoop.net.DNS
  - org.apache.hadoop.contrib.index.mapred.DocumentAndOp (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.contrib.index.mapred.DocumentAndOp.Op
  - org.apache.hadoop.contrib.index.mapred.DocumentID (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.mapred.lib.aggregate.DoubleValueSum (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.io.DoubleWritable (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.streaming.DumpTypedBytes (implements org.apache.hadoop.util.Tool)
  - org.apache.hadoop.contrib.failmon.Environment
  - org.apache.hadoop.contrib.failmon.EventRecord
  - org.apache.hadoop.examples.ExampleDriver
  - org.apache.hadoop.contrib.failmon.Executor (implements java.lang.Runnable)
  - org.apache.hadoop.mapreduce.lib.fieldsel.FieldSelectionHelper
  - org.apache.hadoop.mapred.lib.FieldSelectionMapReduce<K,V> (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>, org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
  - org.apache.hadoop.record.meta.FieldTypeInfo
  - org.apache.hadoop.fs.FileChecksum (implements org.apache.hadoop.io.Writable)
    - org.apache.hadoop.fs.MD5MD5CRC32FileChecksum
  - org.apache.hadoop.mapred.FileInputFormat<K,V> (implements org.apache.hadoop.mapred.InputFormat<K,V>)
    - org.apache.hadoop.streaming.AutoInputFormat
    - org.apache.hadoop.mapred.lib.CombineFileInputFormat<K,V>
    - org.apache.hadoop.mapred.KeyValueTextInputFormat (implements org.apache.hadoop.mapred.JobConfigurable)
      - org.apache.hadoop.streaming.StreamInputFormat
    - org.apache.hadoop.contrib.index.example.LineDocInputFormat
    - org.apache.hadoop.mapred.MultiFileInputFormat<K,V>
      - org.apache.hadoop.examples.MultiFileWordCount.MyInputFormat
    - org.apache.hadoop.mapred.lib.NLineInputFormat (implements org.apache.hadoop.mapred.JobConfigurable)
    - org.apache.hadoop.mapred.SequenceFileInputFormat<K,V>
      - org.apache.hadoop.mapred.SequenceFileAsBinaryInputFormat
      - org.apache.hadoop.mapred.SequenceFileAsTextInputFormat
      - org.apache.hadoop.mapred.SequenceFileInputFilter<K,V>
    - org.apache.hadoop.examples.terasort.TeraInputFormat
    - org.apache.hadoop.mapred.TextInputFormat (implements org.apache.hadoop.mapred.JobConfigurable)
  - org.apache.hadoop.mapred.FileOutputFormat<K,V> (implements org.apache.hadoop.mapred.OutputFormat<K,V>)
    - org.apache.hadoop.contrib.index.mapred.IndexUpdateOutputFormat
    - org.apache.hadoop.mapred.MapFileOutputFormat
    - org.apache.hadoop.mapred.lib.MultipleOutputFormat<K,V>
      - org.apache.hadoop.mapred.lib.MultipleSequenceFileOutputFormat<K,V>
      - org.apache.hadoop.mapred.lib.MultipleTextOutputFormat<K,V>
    - org.apache.hadoop.mapred.SequenceFileOutputFormat<K,V>
      - org.apache.hadoop.mapred.SequenceFileAsBinaryOutputFormat
    - org.apache.hadoop.mapred.TextOutputFormat<K,V>
      - org.apache.hadoop.examples.terasort.TeraOutputFormat
  - org.apache.hadoop.metrics2.sink.FileSink (implements org.apache.hadoop.metrics2.MetricsSink)
  - org.apache.hadoop.fs.FileStatus (implements java.lang.Comparable<T>, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.fs.FileSystem.Statistics
  - org.apache.hadoop.fs.FileUtil
  - org.apache.hadoop.util.bloom.Filter (implements org.apache.hadoop.io.Writable)
    - org.apache.hadoop.util.bloom.BloomFilter
      - org.apache.hadoop.util.bloom.RetouchedBloomFilter (implements org.apache.hadoop.util.bloom.RemoveScheme)
    - org.apache.hadoop.util.bloom.CountingBloomFilter
    - org.apache.hadoop.util.bloom.DynamicBloomFilter
  - org.apache.hadoop.http.FilterInitializer
    - org.apache.hadoop.security.AuthenticationFilterInitializer
    - org.apache.hadoop.http.lib.StaticUserWebFilter
  - org.apache.hadoop.mapreduce.lib.db.FloatSplitter (implements org.apache.hadoop.mapreduce.lib.db.DBSplitter)
  - org.apache.hadoop.io.FloatWritable (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.fs.permission.FsPermission (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.fs.FsUrlStreamHandlerFactory (implements java.net.URLStreamHandlerFactory)
  - org.apache.hadoop.util.GenericOptionsParser
  - javax.servlet.GenericServlet (implements java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig)
    - javax.servlet.http.HttpServlet (implements java.io.Serializable)
      - org.apache.hadoop.conf.ConfServlet
      - org.mortbay.jetty.servlet.DefaultServlet (implements org.mortbay.resource.ResourceFactory)
        - org.apache.hadoop.http.AdminAuthorizedServlet
      - org.apache.hadoop.http.HttpServer.StackServlet
      - org.apache.hadoop.jmx.JMXJsonServlet
      - org.apache.hadoop.log.LogLevel.Servlet
      - org.apache.hadoop.metrics.MetricsServlet
      - org.apache.hadoop.mapred.RawHistoryFileServlet
      - org.apache.hadoop.mapred.TaskGraphServlet
      - org.apache.hadoop.mapred.TaskLogServlet
      - org.apache.hadoop.mapred.TaskTracker.MapOutputServlet
  - org.apache.hadoop.util.GenericsUtil
  - org.apache.hadoop.io.GenericWritable (implements org.apache.hadoop.conf.Configurable, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.fs.GlobPattern
  - org.apache.hadoop.security.Groups
  - org.apache.hadoop.streaming.HadoopStreaming
  - org.apache.hadoop.fs.HardLink
  - org.apache.hadoop.fs.HardLink.LinkStats
  - org.apache.hadoop.util.hash.Hash
    - org.apache.hadoop.util.hash.JenkinsHash
    - org.apache.hadoop.util.hash.MurmurHash
  - org.apache.hadoop.util.bloom.HashFunction
  - org.apache.hadoop.contrib.index.example.HashingDistributionPolicy (implements org.apache.hadoop.contrib.index.mapred.IDistributionPolicy)
  - org.apache.hadoop.mapred.lib.HashPartitioner<K2,V2> (implements org.apache.hadoop.mapred.Partitioner<K2,V2>)
  - org.apache.hadoop.contrib.failmon.HDFSMerger
  - org.apache.hadoop.util.HeapSort (implements org.apache.hadoop.util.IndexedSorter)
  - org.apache.hadoop.util.HostsFileReader
  - org.apache.hadoop.http.HtmlQuoting
  - org.apache.hadoop.http.HttpServer (implements org.apache.hadoop.http.FilterContainer)
  - org.apache.hadoop.http.HttpServer.QuotingInputFilter (implements javax.servlet.Filter)
  - org.apache.hadoop.mapreduce.ID (implements org.apache.hadoop.io.WritableComparable<T>)
    - org.apache.hadoop.mapred.ID
      - org.apache.hadoop.mapreduce.JobID (implements java.lang.Comparable<T>)
        - org.apache.hadoop.mapred.JobID
      - org.apache.hadoop.mapreduce.TaskAttemptID
        - org.apache.hadoop.mapred.TaskAttemptID
      - org.apache.hadoop.mapreduce.TaskID
        - org.apache.hadoop.mapred.TaskID
  - org.apache.hadoop.streaming.io.IdentifierResolver
  - org.apache.hadoop.contrib.index.example.IdentityLocalAnalysis (implements org.apache.hadoop.contrib.index.mapred.ILocalAnalysis<K,V>)
  - org.apache.hadoop.contrib.index.mapred.IndexUpdateConfiguration
  - org.apache.hadoop.contrib.index.mapred.IndexUpdatePartitioner (implements org.apache.hadoop.mapred.Partitioner<K2,V2>)
  - org.apache.hadoop.contrib.index.mapred.IndexUpdater (implements org.apache.hadoop.contrib.index.mapred.IIndexUpdater)
  - java.util.zip.Inflater
    - org.apache.hadoop.io.compress.zlib.BuiltInZlibInflater (implements org.apache.hadoop.io.compress.Decompressor)
  - org.apache.hadoop.fs.s3.INode
  - org.apache.hadoop.mapreduce.InputFormat<K,V>
    - org.apache.hadoop.mapreduce.lib.db.DBInputFormat<T> (implements org.apache.hadoop.conf.Configurable)
      - org.apache.hadoop.mapreduce.lib.db.DataDrivenDBInputFormat<T> (implements org.apache.hadoop.conf.Configurable)
        - org.apache.hadoop.mapreduce.lib.db.OracleDataDrivenDBInputFormat<T> (implements org.apache.hadoop.conf.Configurable)
    - org.apache.hadoop.mapreduce.lib.input.DelegatingInputFormat<K,V>
    - org.apache.hadoop.mapreduce.lib.input.FileInputFormat<K,V>
      - org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat<K,V>
      - org.apache.hadoop.mapreduce.lib.input.KeyValueTextInputFormat
      - org.apache.hadoop.mapreduce.lib.input.NLineInputFormat
      - org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFormat<K,V>
        - org.apache.hadoop.mapreduce.lib.input.SequenceFileAsBinaryInputFormat
        - org.apache.hadoop.mapreduce.lib.input.SequenceFileAsTextInputFormat
        - org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFilter<K,V>
      - org.apache.hadoop.mapreduce.lib.input.TextInputFormat
  - org.apache.hadoop.mapred.lib.InputSampler<K,V> (implements org.apache.hadoop.util.Tool)
  - org.apache.hadoop.mapred.lib.InputSampler.IntervalSampler<K,V> (implements org.apache.hadoop.mapred.lib.InputSampler.Sampler<K,V>)
  - org.apache.hadoop.mapreduce.lib.partition.InputSampler.IntervalSampler<K,V> (implements org.apache.hadoop.mapreduce.lib.partition.InputSampler.Sampler<K,V>)
  - org.apache.hadoop.mapred.lib.InputSampler.RandomSampler<K,V> (implements org.apache.hadoop.mapred.lib.InputSampler.Sampler<K,V>)
  - org.apache.hadoop.mapreduce.lib.partition.InputSampler.RandomSampler<K,V> (implements org.apache.hadoop.mapreduce.lib.partition.InputSampler.Sampler<K,V>)
  - org.apache.hadoop.mapred.lib.InputSampler.SplitSampler<K,V> (implements org.apache.hadoop.mapred.lib.InputSampler.Sampler<K,V>)
  - org.apache.hadoop.mapreduce.lib.partition.InputSampler.SplitSampler<K,V> (implements org.apache.hadoop.mapreduce.lib.partition.InputSampler.Sampler<K,V>)
  - org.apache.hadoop.mapreduce.InputSplit
    - org.apache.hadoop.mapreduce.lib.input.CombineFileSplit (implements org.apache.hadoop.io.Writable)
    - org.apache.hadoop.mapreduce.lib.db.DBInputFormat.DBInputSplit (implements org.apache.hadoop.io.Writable)
      - org.apache.hadoop.mapreduce.lib.db.DataDrivenDBInputFormat.DataDrivenDBInputSplit
    - org.apache.hadoop.mapred.FileSplit (implements org.apache.hadoop.mapred.InputSplit)
    - org.apache.hadoop.mapreduce.lib.input.FileSplit (implements org.apache.hadoop.io.Writable)
  - java.io.InputStream (implements java.io.Closeable)
    - org.apache.hadoop.io.compress.bzip2.CBZip2InputStream (implements org.apache.hadoop.io.compress.bzip2.BZip2Constants)
    - org.apache.hadoop.io.compress.CompressionInputStream (implements org.apache.hadoop.fs.Seekable)
      - org.apache.hadoop.io.compress.DecompressorStream
        - org.apache.hadoop.io.compress.BlockDecompressorStream
      - org.apache.hadoop.io.compress.SplitCompressionInputStream
    - java.io.FilterInputStream
      - java.io.BufferedInputStream
        - org.apache.hadoop.fs.BufferedFSInputStream (implements org.apache.hadoop.fs.HasFileDescriptor, org.apache.hadoop.fs.PositionedReadable, org.apache.hadoop.fs.Seekable)
      - java.io.DataInputStream (implements java.io.DataInput)
        - org.apache.hadoop.io.DataInputBuffer
        - org.apache.hadoop.fs.FSDataInputStream (implements java.io.Closeable, org.apache.hadoop.fs.HasFileDescriptor, org.apache.hadoop.fs.PositionedReadable, org.apache.hadoop.fs.Seekable)
      - org.apache.hadoop.io.InputBuffer
    - org.apache.hadoop.fs.FSInputStream (implements org.apache.hadoop.fs.PositionedReadable, org.apache.hadoop.fs.Seekable)
      - org.apache.hadoop.fs.FSInputChecker
      - org.apache.hadoop.fs.ftp.FTPInputStream
    - org.apache.hadoop.security.SaslInputStream
    - org.apache.hadoop.net.SocketInputStream (implements java.nio.channels.ReadableByteChannel)
  - org.apache.hadoop.streaming.io.InputWriter<K,V>
    - org.apache.hadoop.streaming.io.RawBytesInputWriter
    - org.apache.hadoop.streaming.io.TextInputWriter
    - org.apache.hadoop.streaming.io.TypedBytesInputWriter
  - org.apache.hadoop.mapreduce.lib.db.IntegerSplitter (implements org.apache.hadoop.mapreduce.lib.db.DBSplitter)
    - org.apache.hadoop.mapreduce.lib.db.DateSplitter
      - org.apache.hadoop.mapreduce.lib.db.OracleDateSplitter
  - org.apache.hadoop.classification.InterfaceAudience
  - org.apache.hadoop.classification.InterfaceStability
  - org.apache.hadoop.contrib.index.mapred.IntermediateForm (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.io.IntWritable (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.io.IOUtils
  - org.apache.hadoop.mapred.IsolationRunner
  - org.apache.hadoop.streaming.JarBuilder
  - org.apache.hadoop.io.serializer.JavaSerialization (implements org.apache.hadoop.io.serializer.Serialization<T>)
  - org.apache.hadoop.record.compiler.JField<T>
  - org.apache.hadoop.record.compiler.JFile
  - org.apache.hadoop.security.JniBasedUnixGroupsMapping
    - org.apache.hadoop.security.JniBasedUnixGroupsNetgroupMapping
  - org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback
  - org.apache.hadoop.security.JniBasedUnixGroupsNetgroupMappingWithFallback
  - org.apache.hadoop.mapred.jobcontrol.Job
  - org.apache.hadoop.contrib.utils.join.JobBase (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>, org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
    - org.apache.hadoop.contrib.utils.join.DataJoinMapperBase
    - org.apache.hadoop.contrib.utils.join.DataJoinReducerBase
  - org.apache.hadoop.mapreduce.JobContext
    - org.apache.hadoop.mapreduce.Job
    - org.apache.hadoop.mapred.JobContext
    - org.apache.hadoop.mapreduce.TaskAttemptContext (implements org.apache.hadoop.util.Progressable)
      - org.apache.hadoop.mapred.TaskAttemptContext
      - org.apache.hadoop.mapreduce.TaskInputOutputContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT> (implements org.apache.hadoop.util.Progressable)
        - org.apache.hadoop.mapreduce.MapContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
          - org.apache.hadoop.mapreduce.Mapper.Context
        - org.apache.hadoop.mapreduce.ReduceContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
          - org.apache.hadoop.mapreduce.Reducer.Context
  - org.apache.hadoop.mapred.jobcontrol.JobControl (implements java.lang.Runnable)
  - org.apache.hadoop.mapreduce.lib.jobcontrol.JobControl (implements java.lang.Runnable)
  - org.apache.hadoop.mapred.JobEndNotifier
  - org.apache.hadoop.mapred.JobHistory
  - org.apache.hadoop.mapred.JobHistory.HistoryCleaner (implements java.lang.Runnable)
  - org.apache.hadoop.mapred.JobHistory.JobInfo
  - org.apache.hadoop.mapred.JobHistory.Task
    - org.apache.hadoop.mapred.JobHistory.TaskAttempt
      - org.apache.hadoop.mapred.JobHistory.MapAttempt
      - org.apache.hadoop.mapred.JobHistory.ReduceAttempt
  - org.apache.hadoop.mapred.JobHistoryServer
  - org.apache.hadoop.mapred.JobInProgress
  - org.apache.hadoop.mapred.JobLocalizer
  - org.apache.hadoop.mapred.JobProfile (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.JobQueueInfo (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapreduce.split.JobSplit
  - org.apache.hadoop.mapreduce.split.JobSplit.SplitMetaInfo (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapreduce.split.JobSplit.TaskSplitIndex
  - org.apache.hadoop.mapreduce.split.JobSplit.TaskSplitMetaInfo
  - org.apache.hadoop.mapreduce.split.JobSplitWriter
  - org.apache.hadoop.mapred.JobStatus (implements java.lang.Cloneable, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapreduce.JobStatus
  - org.apache.hadoop.mapreduce.JobSubmissionFiles
  - org.apache.hadoop.mapreduce.security.token.JobTokenSelector (implements org.apache.hadoop.security.token.TokenSelector<T>)
  - org.apache.hadoop.mapred.JobTracker (implements org.apache.hadoop.mapred.AdminOperationsProtocol, org.apache.hadoop.mapred.JobTrackerMXBean, org.apache.hadoop.security.authorize.RefreshAuthorizationPolicyProtocol, org.apache.hadoop.security.RefreshUserMappingsProtocol)
  - org.apache.hadoop.mapred.join.JoinRecordReader.JoinDelegationIterator (implements org.apache.hadoop.mapred.join.ResetableIterator<T>)
  - org.apache.hadoop.record.compiler.JType
    - org.apache.hadoop.record.compiler.JBoolean
    - org.apache.hadoop.record.compiler.JBuffer
    - org.apache.hadoop.record.compiler.JByte
    - org.apache.hadoop.record.compiler.JDouble
    - org.apache.hadoop.record.compiler.JFloat
    - org.apache.hadoop.record.compiler.JInt
    - org.apache.hadoop.record.compiler.JLong
    - org.apache.hadoop.record.compiler.JMap
    - org.apache.hadoop.record.compiler.JRecord
    - org.apache.hadoop.record.compiler.JString
    - org.apache.hadoop.record.compiler.JVector
  - org.apache.hadoop.mapreduce.server.tasktracker.JVMInfo
  - org.apache.hadoop.metrics.jvm.JvmMetrics (implements org.apache.hadoop.metrics.Updater)
  - org.apache.hadoop.metrics2.source.JvmMetricsSource (implements org.apache.hadoop.metrics2.MetricsSource)
  - org.apache.hadoop.mapred.JvmTask (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler (implements org.apache.hadoop.security.authentication.server.AuthenticationHandler)
  - org.apache.hadoop.security.authentication.client.KerberosAuthenticator (implements org.apache.hadoop.security.authentication.client.Authenticator)
  - org.apache.hadoop.security.KerberosName
  - org.apache.hadoop.security.authentication.util.KerberosUtil
  - org.apache.hadoop.util.bloom.Key (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.mapred.lib.KeyFieldBasedPartitioner<K2,V2> (implements org.apache.hadoop.mapred.Partitioner<K2,V2>)
  - org.apache.hadoop.mapred.KeyValueLineRecordReader (implements org.apache.hadoop.mapred.RecordReader<K,V>)
  - org.apache.hadoop.security.Krb5AndCertsSslSocketConnector.Krb5SslFilter (implements javax.servlet.Filter)
  - org.apache.hadoop.contrib.index.example.LineDocLocalAnalysis (implements org.apache.hadoop.contrib.index.mapred.ILocalAnalysis<K,V>)
  - org.apache.hadoop.contrib.index.example.LineDocRecordReader (implements org.apache.hadoop.mapred.RecordReader<K,V>)
  - org.apache.hadoop.contrib.index.example.LineDocTextAndOp (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.util.LineReader
    - org.apache.hadoop.mapred.LineRecordReader.LineReader
  - org.apache.hadoop.mapred.LineRecordReader (implements org.apache.hadoop.mapred.RecordReader<K,V>)
  - org.apache.hadoop.io.compress.snappy.LoadSnappy
  - org.apache.hadoop.streaming.LoadTypedBytes (implements org.apache.hadoop.util.Tool)
  - org.apache.hadoop.fs.LocalDirAllocator
  - org.apache.hadoop.mapreduce.server.tasktracker.Localizer
  - org.apache.hadoop.mapred.LocalJobRunner
  - org.apache.hadoop.contrib.failmon.LocalStore
  - org.apache.hadoop.log.LogLevel
  - org.apache.hadoop.contrib.failmon.LogParser (implements org.apache.hadoop.contrib.failmon.Monitored)
    - org.apache.hadoop.contrib.failmon.HadoopLogParser
    - org.apache.hadoop.contrib.failmon.SystemLogParser
  - org.apache.hadoop.mapred.lib.aggregate.LongValueMax (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.mapred.lib.aggregate.LongValueMin (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.mapred.lib.aggregate.LongValueSum (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.io.LongWritable (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.contrib.index.lucene.LuceneUtil
  - org.apache.hadoop.io.MapFile
    - org.apache.hadoop.io.ArrayFile
    - org.apache.hadoop.io.SetFile
  - org.apache.hadoop.io.MapFile.Reader (implements java.io.Closeable)
    - org.apache.hadoop.io.ArrayFile.Reader
    - org.apache.hadoop.io.BloomMapFile.Reader
    - org.apache.hadoop.io.SetFile.Reader
  - org.apache.hadoop.io.MapFile.Writer (implements java.io.Closeable)
    - org.apache.hadoop.io.ArrayFile.Writer
    - org.apache.hadoop.io.BloomMapFile.Writer
    - org.apache.hadoop.io.SetFile.Writer
  - org.apache.hadoop.mapreduce.Mapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
    - org.apache.hadoop.mapreduce.lib.input.DelegatingMapper<K1,V1,K2,V2>
    - org.apache.hadoop.mapreduce.lib.fieldsel.FieldSelectionMapper<K,V>
    - org.apache.hadoop.mapreduce.lib.map.InverseMapper<K,V>
    - org.apache.hadoop.mapreduce.lib.map.MultithreadedMapper<K1,V1,K2,V2>
    - org.apache.hadoop.examples.SecondarySort.MapClass
    - org.apache.hadoop.mapreduce.lib.map.TokenCounterMapper
    - org.apache.hadoop.examples.WordCount.TokenizerMapper
  - org.apache.hadoop.mapred.MapReduceBase (implements org.apache.hadoop.io.Closeable, org.apache.hadoop.mapred.JobConfigurable)
    - org.apache.hadoop.examples.dancing.DistributedPentomino.PentMap (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
    - org.apache.hadoop.mapred.lib.IdentityMapper<K,V> (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
    - org.apache.hadoop.mapred.lib.IdentityReducer<K,V> (implements org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
    - org.apache.hadoop.contrib.index.mapred.IndexUpdateCombiner (implements org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
    - org.apache.hadoop.contrib.index.mapred.IndexUpdateMapper<K,V> (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
    - org.apache.hadoop.contrib.index.mapred.IndexUpdateReducer (implements org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
    - org.apache.hadoop.mapred.lib.InverseMapper<K,V> (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
    - org.apache.hadoop.mapred.lib.LongSumReducer<K> (implements org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
    - org.apache.hadoop.examples.MultiFileWordCount.MapClass (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
    - org.apache.hadoop.examples.PiEstimator.PiMapper (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
    - org.apache.hadoop.examples.PiEstimator.PiReducer (implements org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
    - org.apache.hadoop.mapred.lib.RegexMapper<K> (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
    - org.apache.hadoop.examples.terasort.TeraGen.SortGenMapper (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
    - org.apache.hadoop.mapred.lib.TokenCountMapper<K> (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
  - org.apache.hadoop.mapred.MapRunner<K1,V1,K2,V2> (implements org.apache.hadoop.mapred.MapRunnable<K1,V1,K2,V2>)
    - org.apache.hadoop.streaming.PipeMapRunner<K1,V1,K2,V2>
  - org.apache.hadoop.mapred.MapTaskCompletionEventsUpdate (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.metrics2.util.MBeans
  - org.apache.hadoop.metrics.util.MBeanUtil
  - org.apache.hadoop.io.MD5Hash (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.util.MergeSort
  - org.apache.hadoop.metrics2.Metric
    - org.apache.hadoop.metrics2.MetricCounter<T>
    - org.apache.hadoop.metrics2.MetricGauge<T>
  - org.apache.hadoop.metrics2.lib.MetricMutable
    - org.apache.hadoop.metrics2.lib.MetricMutableCounter<T>
      - org.apache.hadoop.metrics2.lib.MetricMutableCounterInt
      - org.apache.hadoop.metrics2.lib.MetricMutableCounterLong
    - org.apache.hadoop.metrics2.lib.MetricMutableGauge<T>
      - org.apache.hadoop.metrics2.lib.MetricMutableGaugeInt
      - org.apache.hadoop.metrics2.lib.MetricMutableGaugeLong
    - org.apache.hadoop.metrics2.lib.MetricMutableStat
  - org.apache.hadoop.metrics2.lib.MetricMutableFactory
  - org.apache.hadoop.metrics.util.MetricsBase
    - org.apache.hadoop.metrics.util.MetricsIntValue
    - org.apache.hadoop.metrics.util.MetricsLongValue
    - org.apache.hadoop.metrics.util.MetricsTimeVaryingInt
    - org.apache.hadoop.metrics.util.MetricsTimeVaryingLong
    - org.apache.hadoop.metrics.util.MetricsTimeVaryingRate
  - org.apache.hadoop.metrics2.util.MetricsCache
  - org.apache.hadoop.metrics2.util.MetricsCache.Record
  - org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase (implements javax.management.DynamicMBean)
  - org.apache.hadoop.metrics2.MetricsFilter (implements org.apache.hadoop.metrics2.MetricsPlugin)
    - org.apache.hadoop.metrics2.filter.GlobFilter
    - org.apache.hadoop.metrics2.filter.RegexFilter
  - org.apache.hadoop.metrics2.MetricsRecordBuilder
  - org.apache.hadoop.metrics.spi.MetricsRecordImpl (implements org.apache.hadoop.metrics.MetricsRecord)
  - org.apache.hadoop.metrics2.impl.MetricsRecordImpl (implements org.apache.hadoop.metrics2.MetricsRecord)
  - org.apache.hadoop.metrics.util.MetricsRegistry
  - org.apache.hadoop.metrics2.lib.MetricsRegistry
  - org.apache.hadoop.metrics2.MetricsSystem.AbstractCallback (implements org.apache.hadoop.metrics2.MetricsSystem.Callback)
  - org.apache.hadoop.metrics2.impl.MetricsSystemImpl (implements org.apache.hadoop.metrics2.MetricsSystem)
  - org.apache.hadoop.metrics2.MetricsTag
  - org.apache.hadoop.metrics.MetricsUtil
  - org.apache.hadoop.metrics.spi.MetricValue
  - org.apache.hadoop.contrib.failmon.MonitorJob
  - org.apache.hadoop.examples.MultiFileWordCount.MultiFileLineRecordReader (implements org.apache.hadoop.mapred.RecordReader<K,V>)
  - org.apache.hadoop.examples.MultiFileWordCount.WordOffset (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.mapred.join.MultiFilterRecordReader.MultiFilterDelegationIterator (implements org.apache.hadoop.mapred.join.ResetableIterator<T>)
  - org.apache.hadoop.mapred.lib.MultipleInputs
  - org.apache.hadoop.mapreduce.lib.input.MultipleInputs
  - org.apache.hadoop.mapred.lib.MultipleOutputs
  - org.apache.hadoop.mapreduce.lib.output.MultipleOutputs<KEYOUT,VALUEOUT>
  - org.apache.hadoop.mapred.lib.MultithreadedMapRunner<K1,V1,K2,V2> (implements org.apache.hadoop.mapred.MapRunnable<K1,V1,K2,V2>)
  - org.apache.hadoop.util.NativeCodeLoader
  - org.apache.hadoop.io.nativeio.NativeIO
  - org.apache.hadoop.io.nativeio.NativeIO.Stat
  - org.apache.hadoop.security.NetgroupCache
  - org.apache.hadoop.net.NetUtils
  - org.apache.hadoop.net.NetworkTopology
    - org.apache.hadoop.net.NetworkTopologyWithNodeGroup
  - org.apache.hadoop.net.NodeBase (implements org.apache.hadoop.net.Node)
  - org.apache.hadoop.mapred.lib.NullOutputFormat<K,V> (implements org.apache.hadoop.mapred.OutputFormat<K,V>)
  - org.apache.hadoop.io.NullWritable (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.io.ObjectWritable (implements org.apache.hadoop.conf.Configurable, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.contrib.failmon.OfflineAnonymizer
  - org.apache.hadoop.mapreduce.OutputCommitter
    - org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter
    - org.apache.hadoop.mapred.OutputCommitter
      - org.apache.hadoop.mapred.FileOutputCommitter
  - org.apache.hadoop.mapreduce.OutputFormat<K,V>
    - org.apache.hadoop.mapreduce.lib.db.DBOutputFormat<K,V>
    - org.apache.hadoop.mapreduce.lib.output.FileOutputFormat<K,V>
      - org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat<K,V>
        - org.apache.hadoop.mapreduce.lib.output.SequenceFileAsBinaryOutputFormat
      - org.apache.hadoop.mapreduce.lib.output.TextOutputFormat<K,V>
    - org.apache.hadoop.mapreduce.lib.output.FilterOutputFormat<K,V>
      - org.apache.hadoop.mapreduce.lib.output.LazyOutputFormat<K,V>
    - org.apache.hadoop.mapreduce.lib.output.NullOutputFormat<K,V>
  - org.apache.hadoop.mapred.OutputLogFilter (implements org.apache.hadoop.fs.PathFilter)
  - org.apache.hadoop.streaming.io.OutputReader<K,V>
    - org.apache.hadoop.streaming.io.RawBytesOutputReader
    - org.apache.hadoop.streaming.io.TextOutputReader
    - org.apache.hadoop.streaming.io.TypedBytesOutputReader
  - org.apache.hadoop.metrics.spi.OutputRecord
  - java.io.OutputStream (implements java.io.Closeable, java.io.Flushable)
    - org.apache.hadoop.io.compress.bzip2.CBZip2OutputStream (implements org.apache.hadoop.io.compress.bzip2.BZip2Constants)
    - org.apache.hadoop.io.compress.CompressionOutputStream
      - org.apache.hadoop.io.compress.CompressorStream
        - org.apache.hadoop.io.compress.BlockCompressorStream
        - org.apache.hadoop.io.compress.GzipCodec.GzipOutputStream
    - java.io.FilterOutputStream
      - java.io.DataOutputStream (implements java.io.DataOutput)
        - org.apache.hadoop.io.DataOutputBuffer
        - org.apache.hadoop.fs.FSDataOutputStream (implements org.apache.hadoop.fs.Syncable)
      - org.apache.hadoop.io.OutputBuffer
    - org.apache.hadoop.fs.FSOutputSummer
    - org.apache.hadoop.io.IOUtils.NullOutputStream
    - org.apache.hadoop.security.SaslOutputStream
    - org.apache.hadoop.net.SocketOutputStream (implements java.nio.channels.WritableByteChannel)
  - org.apache.hadoop.mapred.join.Parser
  - org.apache.hadoop.mapred.join.Parser.Node (implements org.apache.hadoop.mapred.join.ComposableInputFormat<K,V>)
  - org.apache.hadoop.mapred.join.Parser.Token
    - org.apache.hadoop.mapred.join.Parser.NodeToken
    - org.apache.hadoop.mapred.join.Parser.NumToken
    - org.apache.hadoop.mapred.join.Parser.StrToken
  - org.apache.hadoop.mapreduce.Partitioner<KEY,VALUE>
    - org.apache.hadoop.mapreduce.lib.partition.BinaryPartitioner<V> (implements org.apache.hadoop.conf.Configurable)
      - org.apache.hadoop.mapred.lib.BinaryPartitioner<V> (implements org.apache.hadoop.mapred.Partitioner<K2,V2>)
    - org.apache.hadoop.mapreduce.lib.partition.HashPartitioner<K,V>
    - org.apache.hadoop.mapreduce.lib.partition.KeyFieldBasedPartitioner<K2,V2> (implements org.apache.hadoop.conf.Configurable)
    - org.apache.hadoop.examples.SecondarySort.FirstPartitioner
    - org.apache.hadoop.mapreduce.lib.partition.TotalOrderPartitioner<K,V> (implements org.apache.hadoop.conf.Configurable)
  - org.apache.hadoop.fs.Path (implements java.lang.Comparable<T>)
  - org.apache.hadoop.streaming.PathFinder
  - org.apache.hadoop.examples.dancing.Pentomino
    - org.apache.hadoop.examples.dancing.OneSidedPentomino
  - org.apache.hadoop.examples.dancing.Pentomino.Piece (implements org.apache.hadoop.examples.dancing.Pentomino.ColumnName)
  - org.apache.hadoop.fs.permission.PermissionStatus (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.contrib.failmon.PersistentState
  - org.apache.hadoop.streaming.PipeMapRed
    - org.apache.hadoop.streaming.PipeMapper (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>)
    - org.apache.hadoop.streaming.PipeReducer (implements org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
      - org.apache.hadoop.streaming.PipeCombiner
  - org.apache.hadoop.util.PlatformName
  - org.apache.hadoop.security.authorize.PolicyProvider
    - org.apache.hadoop.mapred.MapReducePolicyProvider
  - org.apache.hadoop.util.PrintJarMainClass
  - org.apache.hadoop.util.PriorityQueue<T>
  - org.apache.hadoop.util.ProcessTree
    - org.apache.hadoop.util.ProcfsBasedProcessTree
  - org.apache.hadoop.util.ProgramDriver
  - org.apache.hadoop.util.Progress
  - org.apache.tools.ant.ProjectComponent (implements java.lang.Cloneable)
    - org.apache.tools.ant.Task
      - org.apache.hadoop.record.compiler.ant.RccTask
  - org.apache.hadoop.security.authorize.ProxyUsers
  - org.apache.hadoop.security.authentication.server.PseudoAuthenticationHandler (implements org.apache.hadoop.security.authentication.server.AuthenticationHandler)
  - org.apache.hadoop.security.authentication.client.PseudoAuthenticator (implements org.apache.hadoop.security.authentication.client.Authenticator)
  - org.apache.hadoop.util.PureJavaCrc32 (implements java.util.zip.Checksum)
  - org.apache.hadoop.mapred.QueueAclsInfo (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.util.QueueProcessingStatistics
  - org.apache.hadoop.util.QuickSort (implements org.apache.hadoop.util.IndexedSorter)
  - org.apache.hadoop.contrib.index.lucene.RAMDirectoryUtil
  - org.apache.hadoop.record.compiler.generated.Rcc (implements org.apache.hadoop.record.compiler.generated.RccConstants)
  - org.apache.hadoop.record.compiler.generated.RccTokenManager (implements org.apache.hadoop.record.compiler.generated.RccConstants)
  - org.apache.hadoop.io.ReadaheadPool
  - org.apache.hadoop.record.Record (implements java.lang.Cloneable, org.apache.hadoop.io.WritableComparable<T>)
    - org.apache.hadoop.record.meta.RecordTypeInfo
  - org.apache.hadoop.mapreduce.RecordReader<KEYIN,VALUEIN> (implements java.io.Closeable)
    - org.apache.hadoop.mapreduce.lib.input.CombineFileRecordReader<K,V>
    - org.apache.hadoop.mapreduce.lib.db.DBRecordReader<T>
      - org.apache.hadoop.mapreduce.lib.db.DataDrivenDBRecordReader<T>
        - org.apache.hadoop.mapreduce.lib.db.MySQLDataDrivenDBRecordReader<T>
        - org.apache.hadoop.mapreduce.lib.db.OracleDataDrivenDBRecordReader<T>
      - org.apache.hadoop.mapreduce.lib.db.MySQLDBRecordReader<T>
      - org.apache.hadoop.mapreduce.lib.db.OracleDBRecordReader<T>
    - org.apache.hadoop.mapreduce.lib.input.DelegatingRecordReader<K,V>
    - org.apache.hadoop.mapreduce.lib.input.KeyValueLineRecordReader
    - org.apache.hadoop.mapreduce.lib.input.LineRecordReader
    - org.apache.hadoop.mapreduce.lib.input.SequenceFileAsBinaryInputFormat.SequenceFileAsBinaryRecordReader
    - org.apache.hadoop.mapreduce.lib.input.SequenceFileAsTextRecordReader
    - org.apache.hadoop.mapreduce.lib.input.SequenceFileRecordReader<K,V>
  - org.apache.hadoop.mapreduce.RecordWriter<K,V>
    - org.apache.hadoop.mapreduce.lib.db.DBOutputFormat.DBRecordWriter
    - org.apache.hadoop.mapreduce.lib.output.FilterOutputFormat.FilterRecordWriter<K,V>
    - org.apache.hadoop.mapreduce.lib.output.TextOutputFormat.LineRecordWriter<K,V>
  - org.apache.hadoop.mapreduce.ReduceContext.ValueIterable (implements java.lang.Iterable<T>)
  - org.apache.hadoop.mapreduce.ReduceContext.ValueIterator (implements java.util.Iterator<E>)
  - org.apache.hadoop.mapreduce.Reducer<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
    - org.apache.hadoop.mapreduce.lib.fieldsel.FieldSelectionReducer<K,V>
    - org.apache.hadoop.mapreduce.lib.reduce.IntSumReducer<Key>
    - org.apache.hadoop.mapreduce.lib.reduce.LongSumReducer<KEY>
    - org.apache.hadoop.examples.SecondarySort.Reduce
    - org.apache.hadoop.examples.WordCount.IntSumReducer
  - org.apache.hadoop.util.ReflectionUtils
  - org.apache.hadoop.mapred.join.ResetableIterator.EMPTY<U> (implements org.apache.hadoop.mapred.join.ResetableIterator<T>)
  - org.apache.hadoop.util.ResourceCalculatorPlugin.ProcResourceValues
  - org.apache.hadoop.io.retry.RetryPolicies
  - org.apache.hadoop.io.retry.RetryPolicies.MultipleLinearRandomRetry (implements org.apache.hadoop.io.retry.RetryPolicy)
  - org.apache.hadoop.io.retry.RetryPolicies.MultipleLinearRandomRetry.Pair
  - org.apache.hadoop.io.retry.RetryProxy
  - org.apache.hadoop.io.retry.RetryUtils
  - org.apache.hadoop.contrib.index.example.RoundRobinDistributionPolicy (implements org.apache.hadoop.contrib.index.mapred.IDistributionPolicy)
  - org.apache.hadoop.ipc.RPC
  - org.apache.hadoop.ipc.metrics.RpcInstrumentation (implements org.apache.hadoop.metrics2.MetricsSource)
  - org.apache.hadoop.util.RunJar
  - org.apache.hadoop.contrib.failmon.RunOnce
  - org.apache.hadoop.fs.s3.S3Credentials
  - org.apache.hadoop.metrics2.util.SampleStat
  - org.apache.hadoop.metrics2.util.SampleStat.MinMax
  - org.apache.hadoop.security.SaslRpcClient
  - org.apache.hadoop.security.SaslRpcServer
  - org.apache.hadoop.security.SaslRpcServer.SaslDigestCallbackHandler (implements javax.security.auth.callback.CallbackHandler)
  - org.apache.hadoop.security.SaslRpcServer.SaslGssCallbackHandler (implements javax.security.auth.callback.CallbackHandler)
  - org.apache.hadoop.examples.SecondarySort
  - org.apache.hadoop.examples.SecondarySort.FirstGroupingComparator (implements org.apache.hadoop.io.RawComparator<T>)
  - org.apache.hadoop.examples.SecondarySort.IntPair (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.security.token.SecretManager<T>
    - org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager<TokenIdent>
      - org.apache.hadoop.mapreduce.security.token.delegation.DelegationTokenSecretManager
    - org.apache.hadoop.mapreduce.security.token.JobTokenSecretManager
  - org.apache.hadoop.io.SecureIOUtils
  - org.apache.hadoop.mapreduce.security.SecureShuffleUtils
  - org.apache.hadoop.security.SecurityUtil
  - org.apache.hadoop.security.SecurityUtil.QualifiedHostResolver
  - org.apache.hadoop.io.SequenceFile
  - org.apache.hadoop.io.SequenceFile.Metadata (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.io.SequenceFile.Reader (implements java.io.Closeable)
  - org.apache.hadoop.io.SequenceFile.Sorter
  - org.apache.hadoop.io.SequenceFile.Sorter.SegmentDescriptor (implements java.lang.Comparable<T>)
  - org.apache.hadoop.io.SequenceFile.Writer (implements java.io.Closeable)
  - org.apache.hadoop.mapred.SequenceFileAsBinaryInputFormat.SequenceFileAsBinaryRecordReader (implements org.apache.hadoop.mapred.RecordReader<K,V>)
  - org.apache.hadoop.mapred.SequenceFileAsBinaryOutputFormat.WritableValueBytes (implements org.apache.hadoop.io.SequenceFile.ValueBytes)
  - org.apache.hadoop.mapreduce.lib.output.SequenceFileAsBinaryOutputFormat.WritableValueBytes (implements org.apache.hadoop.io.SequenceFile.ValueBytes)
  - org.apache.hadoop.mapred.SequenceFileAsTextRecordReader (implements org.apache.hadoop.mapred.RecordReader<K,V>)
  - org.apache.hadoop.mapred.SequenceFileInputFilter.FilterBase (implements org.apache.hadoop.mapred.SequenceFileInputFilter.Filter)
    - org.apache.hadoop.mapred.SequenceFileInputFilter.MD5Filter
    - org.apache.hadoop.mapred.SequenceFileInputFilter.PercentFilter
    - org.apache.hadoop.mapred.SequenceFileInputFilter.RegexFilter
  - org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFilter.FilterBase (implements org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFilter.Filter)
    - org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFilter.MD5Filter
    - org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFilter.PercentFilter
    - org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFilter.RegexFilter
  - org.apache.hadoop.mapred.SequenceFileRecordReader<K,V> (implements org.apache.hadoop.mapred.RecordReader<K,V>)
  - org.apache.hadoop.contrib.failmon.SerializedRecord
  - org.apache.hadoop.ipc.Server
    - org.apache.hadoop.ipc.RPC.Server
  - org.apache.hadoop.ipc.Server.Connection
  - org.apache.hadoop.metrics2.util.Servers
  - org.apache.hadoop.security.authorize.Service
  - org.apache.hadoop.security.authorize.ServiceAuthorizationManager
  - javax.servlet.ServletRequestWrapper (implements javax.servlet.ServletRequest)
    - javax.servlet.http.HttpServletRequestWrapper (implements javax.servlet.http.HttpServletRequest)
      - org.apache.hadoop.http.HttpServer.QuotingInputFilter.RequestQuoter
  - org.apache.hadoop.util.ServletUtil
  - org.apache.hadoop.contrib.index.mapred.Shard (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.contrib.index.lucene.ShardWriter
  - org.apache.hadoop.util.Shell
    - org.apache.hadoop.fs.DF
    - org.apache.hadoop.fs.DU
    - org.apache.hadoop.util.Shell.ShellCommandExecutor
  - org.apache.hadoop.security.ShellBasedUnixGroupsMapping
    - org.apache.hadoop.security.ShellBasedUnixGroupsNetgroupMapping
  - org.apache.hadoop.contrib.failmon.ShellParser (implements org.apache.hadoop.contrib.failmon.Monitored)
    - org.apache.hadoop.contrib.failmon.CPUParser
    - org.apache.hadoop.contrib.failmon.NICParser
    - org.apache.hadoop.contrib.failmon.SensorsParser
    - org.apache.hadoop.contrib.failmon.SMARTParser
  - org.apache.hadoop.mapred.ShuffleExceptionTracker
  - org.apache.hadoop.security.authentication.util.Signer
  - org.apache.hadoop.record.compiler.generated.SimpleCharStream
  - org.apache.hadoop.mapred.SkipBadRecords
  - org.apache.hadoop.examples.SleepJob.EmptySplit (implements org.apache.hadoop.mapred.InputSplit)
  - org.apache.hadoop.io.compress.SnappyCodec (implements org.apache.hadoop.io.compress.CompressionCodec, org.apache.hadoop.conf.Configurable)
  - org.apache.hadoop.io.compress.snappy.SnappyCompressor (implements org.apache.hadoop.io.compress.Compressor)
  - org.apache.hadoop.io.compress.snappy.SnappyDecompressor (implements org.apache.hadoop.io.compress.Decompressor)
  - javax.net.SocketFactory
    - org.apache.hadoop.net.SocksSocketFactory (implements org.apache.hadoop.conf.Configurable)
    - org.apache.hadoop.net.StandardSocketFactory
  - org.apache.hadoop.mapreduce.split.SplitMetaInfoReader
  - org.apache.hadoop.http.lib.StaticUserWebFilter.StaticUserFilter (implements javax.servlet.Filter)
  - org.apache.hadoop.mapreduce.StatusReporter
    - org.apache.hadoop.mapred.Task.TaskReporter (implements org.apache.hadoop.mapred.Reporter, java.lang.Runnable)
  - org.apache.hadoop.mapred.join.StreamBackedIterator<X> (implements org.apache.hadoop.mapred.join.ResetableIterator<T>)
  - org.apache.hadoop.streaming.StreamBaseRecordReader (implements org.apache.hadoop.mapred.RecordReader<K,V>)
    - org.apache.hadoop.streaming.StreamXmlRecordReader
  - org.apache.hadoop.streaming.StreamJob (implements org.apache.hadoop.util.Tool)
  - org.apache.hadoop.streaming.StreamKeyValUtil
  - org.apache.hadoop.streaming.StreamUtil
  - org.apache.hadoop.util.StringUtils
  - org.apache.hadoop.mapred.lib.aggregate.StringValueMax (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.mapred.lib.aggregate.StringValueMin (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.examples.dancing.Sudoku
  - org.apache.hadoop.contrib.utils.join.TaggedMapOutput (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.Task (implements org.apache.hadoop.conf.Configurable, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.Task.CombineOutputCollector<K,V> (implements org.apache.hadoop.mapred.OutputCollector<K,V>)
  - org.apache.hadoop.mapred.Task.CombinerRunner<K,V>
    - org.apache.hadoop.mapred.Task.NewCombinerRunner<K,V>
    - org.apache.hadoop.mapred.Task.OldCombinerRunner<K,V>
  - org.apache.hadoop.mapred.Task.CombineValuesIterator<KEY,VALUE>
  - org.apache.hadoop.mapred.TaskCompletionEvent (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.TaskController (implements org.apache.hadoop.conf.Configurable)
    - org.apache.hadoop.mapred.DefaultTaskController
  - org.apache.hadoop.filecache.TaskDistributedCacheManager
  - org.apache.hadoop.mapred.TaskLog
  - org.apache.hadoop.mapred.TaskLogsTruncater
  - org.apache.hadoop.mapred.TaskReport (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.TaskStatus (implements java.lang.Cloneable, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.TaskTracker (implements java.lang.Runnable, org.apache.hadoop.mapred.TaskTrackerMXBean, org.apache.hadoop.mapred.TaskUmbilicalProtocol)
  - org.apache.hadoop.mapreduce.server.jobtracker.TaskTracker
  - org.apache.hadoop.mapred.TaskTrackerMetricsSource (implements org.apache.hadoop.metrics2.MetricsSource)
  - org.apache.hadoop.mapred.TaskTrackerStatus (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapred.TextOutputFormat.LineRecordWriter<K,V> (implements org.apache.hadoop.mapred.RecordWriter<K,V>)
  - org.apache.hadoop.io.file.tfile.TFile
  - org.apache.hadoop.io.file.tfile.TFile.Reader (implements java.io.Closeable)
  - org.apache.hadoop.io.file.tfile.TFile.Reader.Scanner (implements java.io.Closeable)
  - org.apache.hadoop.io.file.tfile.TFile.Reader.Scanner.Entry (implements java.lang.Comparable<T>)
  - org.apache.hadoop.io.file.tfile.TFile.Writer (implements java.io.Closeable)
  - java.lang.Thread (implements java.lang.Runnable)
    - org.apache.hadoop.util.Daemon
    - org.apache.hadoop.mapred.HDFSMonitorThread
    - org.apache.hadoop.filecache.TrackerDistributedCacheManager.CleanupThread
    - org.apache.hadoop.mapred.UserLogCleaner
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Error
      - org.apache.hadoop.fs.FSError
      - org.apache.hadoop.record.compiler.generated.TokenMgrError
    - java.lang.Exception
      - org.apache.hadoop.security.authentication.client.AuthenticationException
      - org.apache.hadoop.conf.ConfServlet.BadFormatException
      - java.io.IOException
        - org.apache.hadoop.fs.permission.AccessControlException
          - org.apache.hadoop.security.AccessControlException
            - org.apache.hadoop.security.authorize.AuthorizationException
        - org.apache.hadoop.fs.ChecksumException
        - org.apache.hadoop.util.DiskChecker.DiskErrorException
        - org.apache.hadoop.util.DiskChecker.DiskOutOfSpaceException
        - org.apache.hadoop.fs.FileAlreadyExistsException
        - org.apache.hadoop.mapred.FileAlreadyExistsException
        - org.apache.hadoop.mapred.InvalidFileTypeException
        - org.apache.hadoop.mapred.InvalidInputException
        - org.apache.hadoop.mapreduce.lib.input.InvalidInputException
        - org.apache.hadoop.mapred.InvalidJobConfException
        - org.apache.hadoop.mapred.JobTracker.IllegalStateException
        - org.apache.hadoop.mapred.JobTrackerNotYetInitializedException
        - org.apache.hadoop.security.KerberosName.BadFormatString
        - org.apache.hadoop.security.KerberosName.NoMatchingRule
        - org.apache.hadoop.io.file.tfile.MetaBlockAlreadyExists
        - org.apache.hadoop.io.file.tfile.MetaBlockDoesNotExist
        - org.apache.hadoop.io.MultipleIOException
        - org.apache.hadoop.io.nativeio.NativeIOException
        - org.apache.hadoop.ipc.RemoteException
        - org.apache.hadoop.ipc.RPC.VersionMismatch
        - org.apache.hadoop.fs.s3.S3FileSystemException
          - org.apache.hadoop.fs.s3.VersionMismatchException
        - org.apache.hadoop.mapred.SafeModeException
        - org.apache.hadoop.security.token.SecretManager.InvalidToken
        - org.apache.hadoop.io.SecureIOUtils.AlreadyExistsException
        - org.apache.hadoop.util.Shell.ExitCodeException
        - org.apache.hadoop.io.VersionMismatchException
      - org.apache.hadoop.record.compiler.generated.ParseException
      - java.lang.RuntimeException
        - org.apache.hadoop.mapred.Counters.CountersExceededException
        - org.apache.hadoop.fs.ftp.FTPException
        - org.apache.hadoop.metrics.MetricsException
        - org.apache.hadoop.metrics2.MetricsException
          - org.apache.hadoop.metrics2.impl.MetricsConfigException
        - org.apache.hadoop.net.NetworkTopology.InvalidTopologyException
        - org.apache.hadoop.fs.s3.S3Exception
      - org.apache.hadoop.security.authentication.util.SignerException
  - org.apache.hadoop.record.compiler.generated.Token
  - org.apache.hadoop.security.token.Token<T> (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.mapreduce.security.TokenCache
  - org.apache.hadoop.security.token.TokenIdentifier (implements org.apache.hadoop.io.Writable)
    - org.apache.hadoop.security.token.delegation.AbstractDelegationTokenIdentifier
      - org.apache.hadoop.mapreduce.security.token.delegation.DelegationTokenIdentifier
    - org.apache.hadoop.mapreduce.security.token.JobTokenIdentifier
  - org.apache.hadoop.security.token.TokenRenewer
    - org.apache.hadoop.mapred.JobClient.Renewer
    - org.apache.hadoop.security.token.Token.TrivialRenewer
      - org.apache.hadoop.mapreduce.security.token.JobTokenIdentifier.Renewer
  - org.apache.hadoop.util.ToolRunner
  - org.apache.hadoop.mapred.lib.TotalOrderPartitioner<K,V> (implements org.apache.hadoop.mapred.Partitioner<K2,V2>)
  - org.apache.hadoop.filecache.TrackerDistributedCacheManager
  - org.apache.hadoop.filecache.TrackerDistributedCacheManager.BaseDirManager
  - org.apache.hadoop.metrics2.util.TryIterator<T> (implements java.util.Iterator<E>)
  - org.apache.hadoop.mapred.join.TupleWritable (implements java.lang.Iterable<T>, org.apache.hadoop.io.Writable)
  - org.apache.hadoop.io.TwoDArrayWritable (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.typedbytes.TypedBytesInput
  - org.apache.hadoop.typedbytes.TypedBytesOutput
  - org.apache.hadoop.typedbytes.TypedBytesRecordInput (implements org.apache.hadoop.record.RecordInput)
  - org.apache.hadoop.typedbytes.TypedBytesRecordOutput (implements org.apache.hadoop.record.RecordOutput)
  - org.apache.hadoop.typedbytes.TypedBytesWritableInput (implements org.apache.hadoop.conf.Configurable)
  - org.apache.hadoop.typedbytes.TypedBytesWritableOutput
  - org.apache.hadoop.record.meta.TypeID
    - org.apache.hadoop.record.meta.MapTypeID
    - org.apache.hadoop.record.meta.StructTypeID
    - org.apache.hadoop.record.meta.VectorTypeID
  - org.apache.hadoop.record.meta.TypeID.RIOType
  - org.apache.hadoop.mapred.lib.aggregate.UniqValueCount (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.contrib.index.main.UpdateIndex
  - org.apache.hadoop.mapred.lib.aggregate.UserDefinedValueAggregatorDescriptor (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorDescriptor)
  - org.apache.hadoop.security.UserGroupInformation
  - org.apache.hadoop.security.UserGroupInformation.HadoopLoginModule (implements javax.security.auth.spi.LoginModule)
  - org.apache.hadoop.mapreduce.server.tasktracker.userlogs.UserLogEvent
    - org.apache.hadoop.mapreduce.server.tasktracker.userlogs.DeleteJobEvent
    - org.apache.hadoop.mapreduce.server.tasktracker.userlogs.JobCompletedEvent
    - org.apache.hadoop.mapreduce.server.tasktracker.userlogs.JobStartedEvent
    - org.apache.hadoop.mapreduce.server.tasktracker.userlogs.JvmFinishedEvent
  - org.apache.hadoop.mapreduce.server.tasktracker.userlogs.UserLogManager
  - org.apache.hadoop.io.UTF8 (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.util.UTF8ByteArrayUtils
  - org.apache.hadoop.streaming.UTF8ByteArrayUtils
  - org.apache.hadoop.metrics.spi.Util
  - org.apache.hadoop.io.file.tfile.Utils
  - org.apache.hadoop.record.Utils
  - org.apache.hadoop.record.meta.Utils
  - org.apache.hadoop.mapred.Utils
  - org.apache.hadoop.mapred.Utils.OutputFileUtils
  - org.apache.hadoop.mapred.Utils.OutputFileUtils.OutputLogFilter (implements org.apache.hadoop.fs.PathFilter)
    - org.apache.hadoop.mapred.Utils.OutputFileUtils.OutputFilesFilter
  - org.apache.hadoop.io.file.tfile.Utils.Version (implements java.lang.Comparable<T>)
  - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorDescriptor)
    - org.apache.hadoop.examples.AggregateWordCount.WordCountPlugInClass
    - org.apache.hadoop.examples.AggregateWordHistogram.AggregateWordHistogramPlugin
  - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorJob
  - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorJobBase<K1,V1> (implements org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2>, org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3>)
    - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorCombiner<K1,V1>
    - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorMapper<K1,V1>
    - org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorReducer<K1,V1>
  - org.apache.hadoop.mapred.lib.aggregate.ValueHistogram (implements org.apache.hadoop.mapred.lib.aggregate.ValueAggregator)
  - org.apache.hadoop.io.VersionedWritable (implements org.apache.hadoop.io.Writable)
  - org.apache.hadoop.util.VersionInfo
  - org.apache.hadoop.io.VIntWritable (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.io.VLongWritable (implements org.apache.hadoop.io.WritableComparable<T>)
  - org.apache.hadoop.examples.WordCount
  - org.apache.hadoop.mapred.join.WrappedRecordReader<K,U> (implements org.apache.hadoop.mapred.join.ComposableRecordReader<K,V>)
  - org.apache.hadoop.io.WritableComparator (implements org.apache.hadoop.io.RawComparator<T>)
    - org.apache.hadoop.io.BooleanWritable.Comparator
    - org.apache.hadoop.io.BytesWritable.Comparator
    - org.apache.hadoop.io.ByteWritable.Comparator
    - org.apache.hadoop.io.DoubleWritable.Comparator
    - org.apache.hadoop.io.FloatWritable.Comparator
    - org.apache.hadoop.io.IntWritable.Comparator
    - org.apache.hadoop.mapred.lib.KeyFieldBasedComparator<K,V> (implements org.apache.hadoop.mapred.JobConfigurable)
    - org.apache.hadoop.mapreduce.lib.partition.KeyFieldBasedComparator<K,V> (implements org.apache.hadoop.conf.Configurable)
    - org.apache.hadoop.io.LongWritable.Comparator
      - org.apache.hadoop.io.LongWritable.DecreasingComparator
    - org.apache.hadoop.io.MD5Hash.Comparator
    - org.apache.hadoop.io.NullWritable.Comparator
    - org.apache.hadoop.record.RecordComparator
    - org.apache.hadoop.examples.SecondarySort.IntPair.Comparator
    - org.apache.hadoop.io.Text.Comparator
    - org.apache.hadoop.io.UTF8.Comparator
  - org.apache.hadoop.io.WritableFactories
  - org.apache.hadoop.io.WritableName
  - org.apache.hadoop.io.WritableUtils
  - org.apache.hadoop.record.XmlRecordInput (implements org.apache.hadoop.record.RecordInput)
  - org.apache.hadoop.record.XmlRecordOutput (implements org.apache.hadoop.record.RecordOutput)
  - org.apache.hadoop.util.XMLUtils
  - org.apache.hadoop.io.compress.zlib.ZlibCompressor (implements org.apache.hadoop.io.compress.Compressor)
  - org.apache.hadoop.io.compress.zlib.ZlibDecompressor (implements org.apache.hadoop.io.compress.Decompressor)
  - org.apache.hadoop.io.compress.zlib.ZlibFactory

## Interface Hierarchy

- org.apache.hadoop.security.authentication.server.AuthenticationHandler
- org.apache.hadoop.security.authentication.client.Authenticator
- org.apache.hadoop.io.compress.bzip2.BZip2Constants
- java.io.Closeable
  - org.apache.hadoop.io.Closeable
    - org.apache.hadoop.contrib.index.mapred.ILocalAnalysis<K,V>
    - org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2> (also extends org.apache.hadoop.mapred.JobConfigurable)
      - org.apache.hadoop.contrib.index.mapred.ILocalAnalysis<K,V>
    - org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3> (also extends org.apache.hadoop.mapred.JobConfigurable)
  - org.apache.hadoop.contrib.index.mapred.ILocalAnalysis<K,V>
  - org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2> (also extends org.apache.hadoop.io.Closeable, org.apache.hadoop.mapred.JobConfigurable)
    - org.apache.hadoop.contrib.index.mapred.ILocalAnalysis<K,V>
  - org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3> (also extends org.apache.hadoop.io.Closeable, org.apache.hadoop.mapred.JobConfigurable)
  - org.apache.hadoop.util.ServicePlugin
  - org.apache.hadoop.io.Stringifier<T>
- java.lang.Comparable<T>
  - org.apache.hadoop.mapred.join.ComposableRecordReader<K,V> (also extends org.apache.hadoop.mapred.RecordReader<K,V>)
  - org.apache.hadoop.io.WritableComparable<T> (also extends org.apache.hadoop.io.Writable)
- java.util.Comparator<T>
  - org.apache.hadoop.io.RawComparator<T>
- org.apache.hadoop.io.compress.CompressionCodec
  - org.apache.hadoop.io.compress.SplittableCompressionCodec
- org.apache.hadoop.io.compress.Compressor
- org.apache.hadoop.conf.Configurable
  - org.apache.hadoop.mapred.SequenceFileInputFilter.Filter
  - org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFilter.Filter
  - org.apache.hadoop.util.Tool
- org.apache.hadoop.examples.dancing.DancingLinks.SolutionAcceptor<ColumnName>
- org.apache.hadoop.mapreduce.lib.db.DBSplitter
- org.apache.hadoop.mapred.lib.db.DBWritable
- org.apache.hadoop.mapreduce.lib.db.DBWritable
- org.apache.hadoop.io.compress.Decompressor
- org.apache.hadoop.io.serializer.Deserializer<T>
- org.apache.hadoop.net.DNSToSwitchMapping
- org.apache.hadoop.fs.s3.FileSystemStore
- org.apache.hadoop.http.FilterContainer
- org.apache.hadoop.fs.HasFileDescriptor
- org.apache.hadoop.contrib.index.mapred.IDistributionPolicy
- org.apache.hadoop.contrib.index.mapred.IIndexUpdater
- org.apache.hadoop.record.Index
- org.apache.hadoop.util.IndexedSortable
- org.apache.hadoop.util.IndexedSorter
- org.apache.hadoop.mapred.InputFormat<K,V>
  - org.apache.hadoop.mapred.join.ComposableInputFormat<K,V>
- org.apache.hadoop.mapred.lib.InputSampler.Sampler<K,V>
- org.apache.hadoop.mapreduce.lib.partition.InputSampler.Sampler<K,V>
- java.util.Iterator<E>
  - org.apache.hadoop.contrib.utils.join.ResetableIterator
- org.apache.hadoop.mapred.JobConfigurable
  - org.apache.hadoop.contrib.index.mapred.ILocalAnalysis<K,V>
  - org.apache.hadoop.mapred.Mapper<K1,V1,K2,V2> (also extends org.apache.hadoop.io.Closeable)
    - org.apache.hadoop.contrib.index.mapred.ILocalAnalysis<K,V>
  - org.apache.hadoop.mapred.MapRunnable<K1,V1,K2,V2>
  - org.apache.hadoop.mapred.Partitioner<K2,V2>
  - org.apache.hadoop.mapred.Reducer<K2,V2,K3,V3> (also extends org.apache.hadoop.io.Closeable)
- org.apache.hadoop.mapred.JobHistory.Listener
- org.apache.hadoop.mapred.JobTrackerMXBean
- org.apache.hadoop.metrics2.MetricsBuilder
- org.apache.hadoop.metrics.MetricsContext
- org.apache.hadoop.metrics2.MetricsPlugin
  - org.apache.hadoop.metrics2.MetricsSink
- org.apache.hadoop.metrics.MetricsRecord
- org.apache.hadoop.metrics2.MetricsRecord
- org.apache.hadoop.metrics2.MetricsSource
- org.apache.hadoop.metrics2.MetricsSystem.Callback
- org.apache.hadoop.metrics2.MetricsSystemMXBean
  - org.apache.hadoop.metrics2.MetricsSystem
- org.apache.hadoop.metrics2.MetricsVisitor
- org.apache.hadoop.contrib.failmon.Monitored
- org.apache.hadoop.net.Node
- org.apache.hadoop.mapred.OutputCollector<K,V>
- org.apache.hadoop.mapred.OutputFormat<K,V>
- org.apache.hadoop.fs.PathFilter
- org.apache.hadoop.examples.dancing.Pentomino.ColumnName
- org.apache.hadoop.fs.PositionedReadable
- org.apache.hadoop.util.Progressable
  - org.apache.hadoop.mapred.Reporter
- org.apache.hadoop.io.file.tfile.RawComparable
- org.apache.hadoop.mapred.RawKeyValueIterator
- org.apache.hadoop.record.compiler.generated.RccConstants
- org.apache.hadoop.io.ReadaheadPool.ReadaheadRequest
- org.apache.hadoop.record.RecordInput
- org.apache.hadoop.record.RecordOutput
- org.apache.hadoop.mapred.RecordReader<K,V>
  - org.apache.hadoop.mapred.join.ComposableRecordReader<K,V> (also extends java.lang.Comparable<T>)
- org.apache.hadoop.mapred.RecordWriter<K,V>
- org.apache.hadoop.util.bloom.RemoveScheme
- org.apache.hadoop.mapred.join.ResetableIterator<T>
- org.apache.hadoop.io.retry.RetryPolicy
- org.apache.hadoop.mapred.RunningJob
- org.apache.hadoop.fs.Seekable
- org.apache.hadoop.io.SequenceFile.Sorter.RawKeyValueIterator
- org.apache.hadoop.io.SequenceFile.ValueBytes
- org.apache.hadoop.io.serializer.Serialization<T>
- org.apache.hadoop.io.serializer.Serializer<T>
- org.apache.hadoop.examples.dancing.Sudoku.ColumnName
- org.apache.hadoop.fs.Syncable
- org.apache.hadoop.mapred.TaskTrackerMXBean
- org.apache.hadoop.security.token.TokenSelector<T>
- org.apache.hadoop.metrics.Updater
- org.apache.hadoop.mapred.lib.aggregate.ValueAggregator
- org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorDescriptor
- org.apache.hadoop.ipc.VersionedProtocol
  - org.apache.hadoop.mapred.AdminOperationsProtocol
  - org.apache.hadoop.security.authorize.RefreshAuthorizationPolicyProtocol
  - org.apache.hadoop.security.RefreshUserMappingsProtocol
  - org.apache.hadoop.mapred.TaskUmbilicalProtocol
- org.apache.hadoop.io.Writable
  - org.apache.hadoop.mapred.InputSplit
  - org.apache.hadoop.io.WritableComparable<T> (also extends java.lang.Comparable<T>)
- org.apache.hadoop.io.WritableFactory

## Annotation Type Hierarchy

- org.apache.hadoop.HadoopVersionAnnotation (implements java.lang.annotation.Annotation)
- org.apache.hadoop.classification.InterfaceStability.Stable (implements java.lang.annotation.Annotation)
- org.apache.hadoop.classification.InterfaceStability.Evolving (implements java.lang.annotation.Annotation)
- org.apache.hadoop.classification.InterfaceStability.Unstable (implements java.lang.annotation.Annotation)
- org.apache.hadoop.classification.InterfaceAudience.Public (implements java.lang.annotation.Annotation)
- org.apache.hadoop.classification.InterfaceAudience.LimitedPrivate (implements java.lang.annotation.Annotation)
- org.apache.hadoop.classification.InterfaceAudience.Private (implements java.lang.annotation.Annotation)
- org.apache.hadoop.io.compress.DoNotPool (implements java.lang.annotation.Annotation)
- org.apache.hadoop.security.KerberosInfo (implements java.lang.annotation.Annotation)
- org.apache.hadoop.security.token.TokenInfo (implements java.lang.annotation.Annotation)

## Enum Hierarchy

- java.lang.Object
  - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)
    - org.apache.hadoop.fs.HardLink.OSType
    - org.apache.hadoop.fs.permission.FsAction
    - org.apache.hadoop.io.SequenceFile.CompressionType
    - org.apache.hadoop.io.compress.SplittableCompressionCodec.READ_MODE
    - org.apache.hadoop.io.compress.bzip2.CBZip2InputStream.STATE
    - org.apache.hadoop.io.compress.zlib.ZlibDecompressor.CompressionHeader
    - org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionLevel
    - org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionStrategy
    - org.apache.hadoop.io.compress.zlib.ZlibCompressor.CompressionHeader
    - org.apache.hadoop.io.nativeio.Errno
    - org.apache.hadoop.metrics2.lib.DefaultMetricsSystem (implements org.apache.hadoop.metrics2.MetricsSystem)
    - org.apache.hadoop.metrics2.sink.ganglia.AbstractGangliaSink.GangliaSlope
    - org.apache.hadoop.metrics2.sink.ganglia.AbstractGangliaSink.GangliaConfType
    - org.apache.hadoop.security.SaslRpcServer.QualityOfProtection
    - org.apache.hadoop.security.SaslRpcServer.SaslStatus
    - org.apache.hadoop.security.SaslRpcServer.AuthMethod
    - org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod
    - org.apache.hadoop.security.Krb5AndCertsSslSocketConnector.MODE
    - org.apache.hadoop.util.StringUtils.TraditionalBinaryPrefix
    - org.apache.hadoop.util.QueueProcessingStatistics.State
    - org.apache.hadoop.util.ProcessTree.Signal
    - org.apache.hadoop.mapred.JobClient.TaskStatusFilter
    - org.apache.hadoop.mapred.FileOutputFormat.Counter
    - org.apache.hadoop.mapred.JobTracker.State
    - org.apache.hadoop.mapred.JobTracker.SafeModeAction
    - org.apache.hadoop.mapred.Task.Counter
    - org.apache.hadoop.mapred.JobHistory.RecordTypes
    - org.apache.hadoop.mapred.JobHistory.Keys
    - org.apache.hadoop.mapred.JobHistory.Values
    - org.apache.hadoop.mapred.Operation
    - org.apache.hadoop.mapred.TIPStatus
    - org.apache.hadoop.mapred.TaskCompletionEvent.Status
    - org.apache.hadoop.mapred.TaskLog.LogName
    - org.apache.hadoop.mapred.FileInputFormat.Counter
    - org.apache.hadoop.mapred.JobInProgress.Counter
    - org.apache.hadoop.mapred.TaskStatus.Phase
    - org.apache.hadoop.mapred.TaskStatus.State
    - org.apache.hadoop.mapred.JobPriority
    - org.apache.hadoop.mapred.join.Parser.TType
    - org.apache.hadoop.mapreduce.Job.JobState
    - org.apache.hadoop.mapreduce.JobStatus.State
    - org.apache.hadoop.mapreduce.TaskType
    - org.apache.hadoop.mapreduce.JobACL
    - org.apache.hadoop.mapreduce.lib.input.FileInputFormat.Counter
    - org.apache.hadoop.mapreduce.lib.jobcontrol.JobControl.ThreadState
    - org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob.State
    - org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.Counter
    - org.apache.hadoop.mapreduce.server.tasktracker.userlogs.UserLogEvent.EventType
    - org.apache.hadoop.examples.dancing.Pentomino.SolutionCategory
    - org.apache.hadoop.typedbytes.Type
    - org.apache.hadoop.contrib.failmon.OfflineAnonymizer.LogType

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