title: Cobertura unable to instrument java Interfaces
body: <p>I am using Cobertura for code coverage of my Java code using maven. When the reports are generated, I found out that there is no coverage generated for Interfaces.java.
  While going through the logs, I found below: </p>
  
  <blockquote>
    <p>[cobertura] INFO  [main]
    net.sourceforge.cobertura.reporting.html.HTMLReport - Data file does
    not contain instrumentation information for the file
    com/example/Interface.java.  Ensure this class was instrumented, and
    this data file contains the instrumentation information.</p>
  </blockquote>
  
  <p>[file name mocked up]</p>
  
  <p>Please let me know the reason for this. How can I have code coverage for interfaces in java.</p>
  
  <p>Thanks</p>