Compositional Mining of Multiple Object API Protocols through State Abstraction

Table 3

Object interactions for target APIs. The third column is the number of types with no less than 10 interaction, and the last column is the average number of interactions per type.

Package	No. of interactions	No. of types (≥10)	Average number
java.lang	390	14	9.3
java.util	443	13	6.4
java.io	105	0	1.7