Java 4..21, Kotlin, Code Coverage and their best friend — bytecode: scandals, intrigues, investigations


Room: Linux

Scheduled at : Thursday 14:45 15:45


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, from the old ones up to the most recent, transform your source code.

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

Evgeny Mandrikov

Evgeny Mandrikov

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.

Speaker's bio
Presentation type Conference, 45mn
Track Languages
Presentation level Intermediate
Keywords bytecode Java Kotlin Code coverage

Room Linux