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* Split URL properties into prefix/suffix parts
* Add jacoco plugin to back-end for code coverage
* Compile with Java version 11, run with image openjdk:11
* Clean code of issues reported by Sonar
---------------------------
* Split URL properties into prefix/suffix parts
* Add jacoco plugin to back-end for code coverage
* Compile with Java version 11, run with image openjdk:11
* Clean code of issues reported by Sonar