Clirr Maven Plugin

 Clirr is a tool that checks Java libraries for binary and source compatibility
 with older releases. Basically you give it two sets of jar files and Clirr
 dumps out a list of changes in the public API. The clirr-maven-plugin can
 be configured to break the build, if it detects incompatible API changes.
 In a continuous integration process, the clirr-maven-plugin can automatically
 prevent accidental introduction of binary or source compatibility problems.
 Additionally, the plugin can generate a report as part of the generated
 site.