1. 2022. BigCloneBench. https://github.com/clonebench/BigCloneBench. 2022. BigCloneBench. https://github.com/clonebench/BigCloneBench.
2. 2022. Blackducks. https://www.blackducksoftware.com. 2022. Blackducks. https://www.blackducksoftware.com.
3. 2022. Fossid. https://fossid.com. 2022. Fossid. https://fossid.com.
4. 2022. Google Code Jam. https://code.google.com/codejam/contests.html. 2022. Google Code Jam. https://code.google.com/codejam/contests.html.
5. 2022. javalang. https://github.com/c2nes/javalang. 2022. javalang. https://github.com/c2nes/javalang.