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JDiff

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 1%.

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
36 org.apache.hadoop.io.retry
20 org.apache.hadoop.io.compress.bzip2
13 org.apache.hadoop.io.compress
5 org.apache.hadoop.io.nativeio
5 org.apache.hadoop.net
5 org.apache.hadoop.tools.rumen
3 org.apache.hadoop.security.authentication.util
1 org.apache.hadoop.ipc
1 org.apache.hadoop.mapred
1 org.apache.hadoop.io
1 org.apache.hadoop.util
<1 org.apache.hadoop.http
<1 org.apache.hadoop.mapreduce.lib.input
<1 org.apache.hadoop.mapreduce
<1 org.apache.hadoop.fs
<1 org.apache.hadoop.security

Percentage
Difference
Frequency Percentage Frequency
0 0.3125 |
1 0.25 |
3 0.0625 |
5 0.1875 |
13 0.0625 |
20 0.0625 |
36 0.0625 |


Classes and Interfaces Sorted By Percentage Difference

Percentage
Difference
Class or Interface
52 org.apache.hadoop.io.compress.bzip2.CBZip2InputStream
50 org.apache.hadoop.io.compress.BlockDecompressorStream
50 org.apache.hadoop.tools.rumen.JobConfigurationParser
35 org.apache.hadoop.io.compress.CompressionInputStream
22 org.apache.hadoop.io.nativeio.NativeIO
20 org.apache.hadoop.tools.rumen.JobSubmittedEvent
15 org.apache.hadoop.io.compress.DecompressorStream
14 org.apache.hadoop.io.retry.RetryProxy
14 org.apache.hadoop.mapred.AdminOperationsProtocol
14 org.apache.hadoop.tools.rumen.TaskInfo
11 org.apache.hadoop.fs.CommonConfigurationKeys
11 org.apache.hadoop.mapred.TaskTrackerStatus
11 org.apache.hadoop.net.DNS
11 org.apache.hadoop.security.authentication.util.KerberosUtil
10 org.apache.hadoop.ipc.Client
10 org.apache.hadoop.tools.rumen.JobBuilder
9 org.apache.hadoop.mapreduce.StatusReporter
8 org.apache.hadoop.security.SecurityUtil
8 org.apache.hadoop.io.compress.bzip2.BZip2Constants
7 org.apache.hadoop.mapreduce.lib.input.LineRecordReader
6 org.apache.hadoop.mapred.Reporter
6 org.apache.hadoop.mapreduce.lib.input.NLineInputFormat
6 org.apache.hadoop.net.NetUtils
5 org.apache.hadoop.mapred.KeyValueLineRecordReader
5 org.apache.hadoop.mapred.LineRecordReader
5 org.apache.hadoop.http.HttpServer
4 org.apache.hadoop.io.compress.BZip2Codec
4 org.apache.hadoop.mapreduce.TaskInputOutputContext
4 org.apache.hadoop.util.Progress
4 org.apache.hadoop.mapred.JobClient
4 org.apache.hadoop.mapred.Task.TaskReporter
3 org.apache.hadoop.ipc.RPC
3 org.apache.hadoop.fs.FileSystem
3 org.apache.hadoop.mapred.JobTracker
2 org.apache.hadoop.mapred.TaskController
2 org.apache.hadoop.io.MD5Hash
2 org.apache.hadoop.mapred.Counters
1 org.apache.hadoop.tools.rumen.LoggedTaskAttempt
1 org.apache.hadoop.tools.rumen.LoggedJob
1 org.apache.hadoop.util.StringUtils
<1 org.apache.hadoop.mapred.TaskTracker
<1 org.apache.hadoop.mapred.JobConf

Percentage
Difference
Frequency Percentage Frequency
0 0.047619047619047616 |
1 0.07142857142857142 |
2 0.07142857142857142 |
3 0.07142857142857142 |
4 0.11904761904761904 |
5 0.07142857142857142 |
6 0.07142857142857142 |
7 0.023809523809523808 |
8 0.047619047619047616 |
9 0.023809523809523808 |
10 0.047619047619047616 |
11 0.09523809523809523 |
14 0.07142857142857142 |
15 0.023809523809523808 |
20 0.023809523809523808 |
22 0.023809523809523808 |
35 0.023809523809523808 |
50 0.047619047619047616 |
52 0.023809523809523808 |


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 0 16 16
Classes and Interfaces 0 20 42 62
Constructors 1 4 9 14
Methods 1 46 8 55
Fields 0 32 0 32
Total 2 102 75 179