Evgeny Mandrikov

Evgeny Mandrikov

SonarSource

Evgeny is a contributor to various open source projects, including OpenJDK, and a speaker at international conferences and JUGs. He is also one of the project leads of widely adopted code coverage tool for Java and Kotlin - JaCoCo, and the award-winning EclEmma project at the Eclipse Foundation that integrates JaCoCo into Eclipse. In his day job at SonarSource Evgeny develops SonarQube’s static source code analysis for languages such as Java, C/C++, C#, JavaScript.

Twitter : @_godin_

Blog: http://www.sonarsource.com/

lang

Track : Languages

Type de présentation : Conference

Kotlin, Java 4..18, Code Coverage and their best friend — bytecode: scandals, intrigues, investigations

Do you know what is inside of your class files? Are you ready to bet? Let's have fun by diving into bytecode pattern matching and explore how different compilers (Java/Kotlin) and their different versions, including recently released javac 18 and kotlinc 1.6, transform your source code.

Our dive will be based on details of the implementation of most popular open-source code coverage tool for Java – JaCoCo ( https://www.jacoco.org/ ), which finds in bytecode and filters out various compiler generated artifacts, which otherwise require unnecessary and sometimes impossible tricks to have full code coverage.