Requirement as per the description of the plugin (from plugin manager)

"The code coverage plugin will update the code coverage data and refresh editors markup every time a unit test is executed for the project."

Fails. Coverage is updated when the entire project is run, however the module is NOT activated when testing an individual file:
* right click java class in navigation -> test file
* meta + f6 

however, works when
* right click on project -> test 
* ctrl + f6

This requires the entire test suite to run every time one file is updated.