Software bugs fixed automatically with AI and Big Data

Researchers worked on the Defects4J benchmark data-set – a collection of bugs from object-oriented, open-source programmes, including Java. "We investigated 20 method-invocation related bugs, with trackable bug repositories, from Defects4J," said Fujitsu. It found 29 out of the 49 single-fault-location bugs (59.2%) in the Defects4J data-set are method-invocation related bugs, saying that patches for such bugs typically have a have a large number of candidate patches, often several hundred. "Conventional techniques, such as the heuristic-search-based automated repair tool ACS, essentially do not fix method-invocation related bugs, and can correctly fix only six out of the 29 [20.7%] "By contrast, our technique, fixed method-invocation bugs and generated 15 correct patches out of 29 bugs [51.7%], and overall correctly fixed 26 out of the 49 bugs."