Taiwan (with an area of 36,000 square kilometers/ 22,500 square miles) is the largest. Hainan Island (about 34,000 square kilometers /21,250 square miles) is the second-largest island, but it is the largest which is fully under the jurisdiction of China.
Continuous integration is a software development practice where developers regularly merge their code changes into a central repository, after which automated builds and tests are run.
Continuous integration involves integrating early and often, so as to avoid the pitfalls of integration hell. The practice aims to reduce rework and thus reduce cost and time. A complementary practice to CI is that before submitting work, each programmer must do a complete build and run (and pass) all unit tests.