title: What does 'be' refer to in <java-project-name>-<version>-be.jar?
body: <p>I have seen a number of java projects where, similar to 'xxxx-sources.jar' (which obviously contains source files) there is a jar ending in 'be.jar'. These seem to be similar to the full project jar less any xml config and other non-class files.</p>
  
  <p>What does 'be' stand for?</p>