infra: Fix jvm coverage report #12694
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Signed-off-by: Arthur Chan <[email protected]>
Signed-off-by: Arthur Chan <[email protected]>
Signed-off-by: Arthur Chan <[email protected]>
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The current JVM coverage calculation includes all class files and JAR files in $OUT. If the project has copied necessary dependency JAR files to $OUT for fuzzing purposes, those classes will also be included in the JaCoCo coverage report, adding noise. This PR addresses that issue by only copying class files located in the $OUT/$SRC directory, which are lively compiled from the project source code, ensuring that only project classes are used by jacoco-cli to generate the coverage report. As all JVM languages compile to class files, this approach should work for all JVM languages supported by OSS-Fuzz in general.