1. Add JaCoCo Plugin to your pom.xml file, see here
2. Call bash <(curl -s https://codecov.io/bash) -t repository-upload-token at the end of your CI build
   • Using Travis CI, CircleCI or AppVeyor AND the repository is public? You're done! No token needed.
   • Otherwise, please add your [repository token token][5].

Other examples

• Maven Example
• Gradle Example
• Android Example

In your pom.xml file please append a list of modules in your projects

<project>
  <modules>
    <module>module_a/</module>
    <module>module_b/</module>
  </modules>
</project>

Please see http://stackoverflow.com/questions/18107375/...

No, these files are not supported. Please produce a xml file as detailed in the pom.xml file at codecov/example-java

Yes, enter codecov/example-gradle

Yes, enter codecov/example-android