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 28%.

Sections

Packages Sorted By Percentage Difference

Percentage Difference	Frequency	Percentage Frequency
0	0.2
1	0.2
2	0.13333333333333333
3	0.06666666666666667
9	0.06666666666666667
10	0.06666666666666667
12	0.06666666666666667
20	0.06666666666666667
29	0.06666666666666667
100	0.06666666666666667

Classes and Interfaces Sorted By Percentage Difference

Percentage Difference	Frequency	Percentage Frequency
0	0.01818181818181818
1	0.1
2	0.06363636363636363
3	0.045454545454545456
4	0.1
5	0.03636363636363636
6	0.03636363636363636
7	0.045454545454545456
8	0.02727272727272727
9	0.045454545454545456
10	0.045454545454545456
11	0.03636363636363636
12	0.00909090909090909
13	0.00909090909090909
14	0.00909090909090909
15	0.01818181818181818
16	0.00909090909090909
18	0.01818181818181818
20	0.00909090909090909
22	0.01818181818181818
26	0.00909090909090909
30	0.01818181818181818
33	0.03636363636363636
34	0.00909090909090909
37	0.00909090909090909
44	0.00909090909090909
50	0.02727272727272727
53	0.00909090909090909
66	0.00909090909090909
100	0.16363636363636364

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.