zero coverage in coveralls.io coverage report

[eis]

No description provided.

[eis]

See https://travis-ci.org/github/eis/spring-boot-security-example/jobs/752452042

[ERROR] Failed to execute goal org.codehaus.mojo:cobertura-maven-plugin:2.7:instrument (default-cli) on project spring-boot-security-example: Execution default-cli of goal org.codehaus.mojo:cobertura-maven-plugin:2.7:instrument failed: Plugin org.codehaus.mojo:cobertura-maven-plugin:2.7 or one of its dependencies could not be resolved: Could not find artifact com.sun:tools:jar:0 at specified path /usr/local/lib/jvm/openjdk11/../lib/tools.jar -> [Help 1]

Seems to be due to cobertura-maven-plugin not supporting jdk 11

cobertura/cobertura#271

[eis]

https://stackoverflow.com/questions/51753971/jenkins-build-failure-cobertura-error

recommends switching to jacoco

[eis]

Instructions on switching to jacoco: https://github.com/trautonen/coveralls-maven-plugin#jacoco