TeamCity Jira plugin

 This plugin provides a TeamCity build feature that can comment on or transition Jira issues that are discovered in builds.

Build
 Issue 'mvn package' command from the root project to build your plugin. Resulting package <artifactId>.zip will be placed in 'target' directory. 
 
 Install
 To install the plugin, put zip archive to 'plugins' dir under TeamCity data directory and restart the server.