Clover
Clover is a code coverage analysis tool for Java applications, originally developed by Atlassian and now maintained as an open-source project. It measures how much of your source code is executed during testing, helping developers identify untested parts of their codebase. It integrates with build tools like Maven and Ant, and provides detailed reports in HTML, XML, and other formats.
Developers should use Clover when they need to ensure comprehensive test coverage in Java projects, particularly in enterprise or large-scale applications where quality assurance is critical. It is especially valuable in continuous integration pipelines to monitor coverage trends over time and enforce coverage thresholds, helping teams maintain code quality and reduce bugs.