Description: JDiff is a Javadoc doclet which generates an HTML report of all the packages, classes, constructors, methods, and fields which have been removed, added or changed in any way, including their documentation, when two APIs are compared.
Keywords: diff, jdiff, javadiff, java diff, java difference, API difference, difference between two APIs, API diff, Javadoc, doclet

`hadoop 0.20.2-cdh3u1` | Overview | Package | Class | Statistics | Help
| Generated by JDiff
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# JDiff Statistics

> The percent change statistic reported for all elements in each API is defined recursively as follows:

>     Percentage difference = 100 * (added + removed + 2*changed)
>                             -----------------------------------
>                             sum of public elements in BOTH APIs

> Where `added` is the number of packages added, `removed` is the number of packages removed, and `changed` is the number of packages changed. This definition is applied recursively for the classes and their program elements, so the value for a changed package will be less than 1, unless every class in that package has changed. The definition ensures that if all packages are removed and all new packages are added, the change will be 100%. Values are rounded here, so a value of 0% indicates a percentage difference of less than 0.5%.

> The overall difference between the two APIs is approximately 24%.

### Sections

Packages sorted by percentage difference
Classes and Interfaces sorted by percentage difference
Differences by number and type

## Packages Sorted By Percentage Difference

Percentage Difference | Package
93 | org.apache.hadoop.security
76 | org.apache.hadoop.metrics.ganglia
66 | org.apache.hadoop.filecache
41 | org.apache.hadoop.http
40 | org.apache.hadoop.mapred.tools
39 | org.apache.hadoop.mapreduce.lib.input
39 | org.apache.hadoop.security.authorize
38 | org.apache.hadoop.mapred.lib.db
38 | org.apache.hadoop.ipc.metrics
33 | org.apache.hadoop.mapreduce.lib.partition
25 | org.apache.hadoop.ipc
22 | org.apache.hadoop.conf
21 | org.apache.hadoop.io.compress
21 | org.apache.hadoop.io.compress.bzip2
20 | org.apache.hadoop.mapred
18 | org.apache.hadoop.metrics.spi
16 | org.apache.hadoop
15 | org.apache.hadoop.util
13 | org.apache.hadoop.tools
12 | org.apache.hadoop.fs.permission
12 | org.apache.hadoop.mapreduce
11 | org.apache.hadoop.mapreduce.lib.output
9 | org.apache.hadoop.metrics
6 | org.apache.hadoop.mapred.lib
5 | org.apache.hadoop.fs.s3
5 | org.apache.hadoop.fs
5 | org.apache.hadoop.io.compress.zlib
3 | org.apache.hadoop.fs.s3native
2 | org.apache.hadoop.io.file.tfile
1 | org.apache.hadoop.io

Percentage Difference | Frequency | Percentage Frequency
1 | 0.03333333333333333 |
2 | 0.03333333333333333 |
3 | 0.03333333333333333 |
5 | 0.1 |
6 | 0.03333333333333333 |
9 | 0.03333333333333333 |
11 | 0.03333333333333333 |
12 | 0.06666666666666667 |
13 | 0.03333333333333333 |
15 | 0.03333333333333333 |
16 | 0.03333333333333333 |
18 | 0.03333333333333333 |
20 | 0.03333333333333333 |
21 | 0.06666666666666667 |
22 | 0.03333333333333333 |
25 | 0.03333333333333333 |
33 | 0.03333333333333333 |
38 | 0.06666666666666667 |
39 | 0.06666666666666667 |
40 | 0.03333333333333333 |
41 | 0.03333333333333333 |
66 | 0.03333333333333333 |
76 | 0.03333333333333333 |
93 | 0.03333333333333333 |

## Classes and Interfaces Sorted By Percentage Difference

Percentage Difference | Class or Interface
100 | org.apache.hadoop.mapred.lib.db.DBWritable
95 | org.apache.hadoop.security.UserGroupInformation
86 | org.apache.hadoop.security.SecurityUtil
66 | org.apache.hadoop.mapred.lib.db.DBInputFormat.NullDBWritable
64 | org.apache.hadoop.metrics.ganglia.GangliaContext
60 | org.apache.hadoop.mapred.lib.db.DBInputFormat.DBInputSplit
53 | org.apache.hadoop.mapred.TaskLog
52 | org.apache.hadoop.io.compress.bzip2.CBZip2InputStream
52 | org.apache.hadoop.ipc.metrics.RpcMetrics
50 | org.apache.hadoop.fs.s3.S3Exception
50 | org.apache.hadoop.io.compress.BlockDecompressorStream
50 | org.apache.hadoop.mapred.MapRunnable
50 | org.apache.hadoop.mapred.Mapper
50 | org.apache.hadoop.mapred.Partitioner
50 | org.apache.hadoop.mapred.Reducer
50 | org.apache.hadoop.mapreduce.Reducer.Context
44 | org.apache.hadoop.util.GenericOptionsParser
44 | org.apache.hadoop.ipc.Client
43 | org.apache.hadoop.mapred.TaskTracker
42 | org.apache.hadoop.ipc.RPC.Server
42 | org.apache.hadoop.security.authorize.ServiceAuthorizationManager
35 | org.apache.hadoop.io.compress.CompressionInputStream
33 | org.apache.hadoop.filecache.DistributedCache
33 | org.apache.hadoop.http.FilterInitializer
33 | org.apache.hadoop.mapred.InvalidJobConfException
33 | org.apache.hadoop.mapred.LineRecordReader.LineReader
33 | org.apache.hadoop.security.authorize.Service
30 | org.apache.hadoop.mapred.lib.db.DBInputFormat.DBRecordReader
30 | org.apache.hadoop.util.ProcfsBasedProcessTree
30 | org.apache.hadoop.ipc.RPC
29 | org.apache.hadoop.io.file.tfile.TFile.Reader
27 | org.apache.hadoop.fs.FileSystem.Statistics
26 | org.apache.hadoop.mapred.JobHistory
25 | org.apache.hadoop.io.compress.zlib.ZlibFactory
25 | org.apache.hadoop.mapred.InputFormat
25 | org.apache.hadoop.mapred.InputSplit
25 | org.apache.hadoop.mapred.JobContext
25 | org.apache.hadoop.mapred.OutputFormat
25 | org.apache.hadoop.mapred.OutputLogFilter
25 | org.apache.hadoop.mapred.TextOutputFormat
25 | org.apache.hadoop.mapred.lib.IdentityMapper
25 | org.apache.hadoop.mapred.lib.IdentityReducer
25 | org.apache.hadoop.mapred.lib.InverseMapper
25 | org.apache.hadoop.mapred.lib.LongSumReducer
25 | org.apache.hadoop.mapred.lib.TokenCountMapper
25 | org.apache.hadoop.util.DiskChecker
25 | org.apache.hadoop.util.RunJar
23 | org.apache.hadoop.util.Shell
23 | org.apache.hadoop.mapred.JobTracker
20 | org.apache.hadoop.mapred.OutputCommitter
20 | org.apache.hadoop.mapred.lib.db.DBOutputFormat
20 | org.apache.hadoop.mapred.lib.db.DBOutputFormat.DBRecordWriter
20 | org.apache.hadoop.mapreduce.JobContext
20 | org.apache.hadoop.metrics.spi.OutputRecord
18 | org.apache.hadoop.mapreduce.OutputCommitter
17 | org.apache.hadoop.fs.LocalDirAllocator
17 | org.apache.hadoop.util.LineReader
16 | org.apache.hadoop.HadoopVersionAnnotation
16 | org.apache.hadoop.mapred.SequenceFileInputFormat
16 | org.apache.hadoop.mapred.lib.HashPartitioner
16 | org.apache.hadoop.mapred.lib.NullOutputFormat
15 | org.apache.hadoop.io.compress.CompressionCodecFactory
15 | org.apache.hadoop.io.compress.DecompressorStream
15 | org.apache.hadoop.ipc.Server
14 | org.apache.hadoop.fs.DF
14 | org.apache.hadoop.mapred.FileOutputCommitter
14 | org.apache.hadoop.mapred.LineRecordReader
14 | org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter
13 | org.apache.hadoop.http.HttpServer
12 | org.apache.hadoop.io.compress.GzipCodec.GzipInputStream
12 | org.apache.hadoop.mapred.TaskAttemptContext
12 | org.apache.hadoop.mapred.TextInputFormat
12 | org.apache.hadoop.mapreduce.lib.output.FileOutputFormat
11 | org.apache.hadoop.io.compress.zlib.BuiltInZlibDeflater
11 | org.apache.hadoop.io.compress.zlib.ZlibCompressor
11 | org.apache.hadoop.mapred.JobQueueInfo
11 | org.apache.hadoop.mapred.tools.MRAdmin
11 | org.apache.hadoop.util.VersionInfo
10 | org.apache.hadoop.conf.Configuration
10 | org.apache.hadoop.io.IOUtils
10 | org.apache.hadoop.mapred.SequenceFileOutputFormat
10 | org.apache.hadoop.mapred.TaskLogAppender
9 | org.apache.hadoop.util.StringUtils
9 | org.apache.hadoop.io.compress.CodecPool
9 | org.apache.hadoop.ipc.RemoteException
9 | org.apache.hadoop.tools.HadoopArchives
8 | org.apache.hadoop.fs.permission.FsPermission
8 | org.apache.hadoop.io.compress.bzip2.BZip2Constants
8 | org.apache.hadoop.mapred.JobStatus
7 | org.apache.hadoop.mapred.lib.db.DBInputFormat
7 | org.apache.hadoop.fs.FSDataInputStream
7 | org.apache.hadoop.mapreduce.ReduceContext
7 | org.apache.hadoop.util.HostsFileReader
6 | org.apache.hadoop.mapred.ClusterStatus
6 | org.apache.hadoop.mapreduce.lib.input.LineRecordReader
6 | org.apache.hadoop.mapred.JobConf
6 | org.apache.hadoop.fs.FileSystem
6 | org.apache.hadoop.mapred.JobHistory.JobInfo
6 | org.apache.hadoop.mapred.JobHistory.Keys
6 | org.apache.hadoop.mapred.JobClient
5 | org.apache.hadoop.util.Shell.ShellCommandExecutor
5 | org.apache.hadoop.mapred.FileSplit
5 | org.apache.hadoop.metrics.ContextFactory
4 | org.apache.hadoop.io.compress.BZip2Codec
4 | org.apache.hadoop.io.compress.Compressor
4 | org.apache.hadoop.metrics.spi.AbstractMetricsContext
4 | org.apache.hadoop.fs.FileUtil
4 | org.apache.hadoop.fs.Path
4 | org.apache.hadoop.mapreduce.Job
4 | org.apache.hadoop.io.compress.bzip2.BZip2DummyCompressor
4 | org.apache.hadoop.metrics.MetricsContext
3 | org.apache.hadoop.io.file.tfile.TFile.Reader.Scanner
3 | org.apache.hadoop.io.SequenceFile.Writer
3 | org.apache.hadoop.mapred.lib.db.DBConfiguration
3 | org.apache.hadoop.fs.s3native.NativeS3FileSystem
2 | org.apache.hadoop.mapred.FileInputFormat
2 | org.apache.hadoop.fs.s3.S3FileSystem
2 | org.apache.hadoop.io.WritableComparator
2 | org.apache.hadoop.mapred.RunningJob
2 | org.apache.hadoop.mapred.Counters
1 | org.apache.hadoop.fs.RawLocalFileSystem
1 | org.apache.hadoop.fs.HarFileSystem
1 | org.apache.hadoop.fs.FilterFileSystem

Percentage Difference | Frequency | Percentage Frequency
1 | 0.024390243902439025 |
2 | 0.04065040650406504 |
3 | 0.032520325203252036 |
4 | 0.06504065040650407 |
5 | 0.024390243902439025 |
6 | 0.056910569105691054 |
7 | 0.032520325203252036 |
8 | 0.024390243902439025 |
9 | 0.032520325203252036 |
10 | 0.032520325203252036 |
11 | 0.04065040650406504 |
12 | 0.032520325203252036 |
13 | 0.008130081300813009 |
14 | 0.032520325203252036 |
15 | 0.024390243902439025 |
16 | 0.032520325203252036 |
17 | 0.016260162601626018 |
18 | 0.008130081300813009 |
20 | 0.04065040650406504 |
23 | 0.016260162601626018 |
25 | 0.11382113821138211 |
26 | 0.008130081300813009 |
27 | 0.008130081300813009 |
29 | 0.008130081300813009 |
30 | 0.024390243902439025 |
33 | 0.04065040650406504 |
35 | 0.008130081300813009 |
42 | 0.016260162601626018 |
43 | 0.008130081300813009 |
44 | 0.016260162601626018 |
50 | 0.056910569105691054 |
52 | 0.016260162601626018 |
53 | 0.008130081300813009 |
60 | 0.008130081300813009 |
64 | 0.008130081300813009 |
66 | 0.008130081300813009 |
86 | 0.008130081300813009 |
95 | 0.008130081300813009 |
100 | 0.008130081300813009 |

## Differences By Number and Type

> The numbers of program elements (packages, classes. constructors, methods and fields) which are recorded as removed, added or changed includes only the highest-level program elements. That is, if a class with two methods was added, the number of methods added does not include those two methods, but the number of classes added does include that class.

Number of Differences
| Removals | Additions | Changes | Total
Packages | 0 | 15 | 30 | 45
Classes and Interfaces | 6 | 119 | 123 | 248
Constructors | 2 | 22 | 16 | 40
Methods | 41 | 261 | 59 | 361
Fields | 3 | 84 | 5 | 92
Total | 52 | 501 | 233 | 786