I would like to add flexmark-java (a Java Markdown parser) to Fedora, which requires also adding two dependencies. The flexmark-java package is moderately complex, but the other 2 are fairly simple. Let me know what I can review for you in exchange.
autolink-java: 2233315 – Review Request: autolink-java - Java library to extract links from plain text
jetbrains-annotations: 2233316 – Review Request: jetbrains-annotations - Annotations for JVM-based languages
flexmark-java: 2233317 – Review Request: flexmark-java - CommonMark/Markdown Java parser with source level AST
Also, Fedora has had jetbrains-annotations before, so that one is an unretirement review.