Library for Generating HTML Source Code Reports in Java

I am currently working on a testing tool for Java programs and I would like to generate a report that links the test results to the Java source file. Furthermore, I would like to be able to highlight the parts of the source file (in the HTML output) based on the test results. I know that the report generator from Jacoco does something like this. However, the generator seems to be coupled to the core library, and I would prefer to have something independent. Do you know a simple and easy-to-use solution for this problem.

Thanks for you help and kind regards