.travis.yml

language: java
jdk:
  - oraclejdk8

# It seems that the default build step of Travis CI "mvn test -B" does not work well with the repackaged module.
# First, the "shade" goal of the maven-shade-plugin is bound to the "package" phase and cannot be anticipated (according to the error message received after trying). 
# Because the "test" phase happens before the "package" phase, the jar of the repackaged module (i.e. yacl4j-repackaged-jackson) is not available when the compilation of yacl4j-core module happens. 
# So the "target/classes" folder of yacl4j-repackaged-jackson is used for the compilation of yacl4j-core but that folder is empty because the only purpose of the yacl4j-repackaged-jackson module is to repackage Jackson.
script: ./mvnw clean package