Travis CI supports build matrix, it let you to build your project in several environment. For instance, I build my project in 6 environments: OpenJDK 1.6, SLF4J 1.6.6 OpenJDK 1.7, SLF4J 1.6.6 OracleJDK 1.7, SLF4J 1.6.6 OpenJDK 1.6, SLF4J 1…