Apache Santuario XML Security for Java uses GIT for its source repository.
To browse the sources via GitHub: https://github.com/apache/santuario-xml-security-java
You can fork that repository, commit changes to your fork, and submit pull requests through GitHub's pull request mechanisms.
The repository is dual-hosted, so it's also valid to use https://gitbox.apache.org/repos/asf?p=santuario-xml-security-java.git
Checking out from GIT
The source code can be checked out anonymously over HTTPS by doing: