title: Breakpoint not registered in eclipse in maven multi-module web application
body: <p>I'm currently working with a maven multi-module application in eclipse.</p>
  
  <p>In some classes I can set breakpoints, and after starting tomcat (via eclipse) in debug mode, they get registered (meaning, a small tick icon is displayed next to the blue round breakpoint icon), and the debugger stops there.</p>
  
  <p>In some other classes, the breakpoint is not registered, and the debugger doesn't stop there.</p>
  
  <p>Why? And what's the mechanism underneath, like, are breakpoints only registered for classes that were already loaded? Or how does that work?</p>
  
  <p>Update: 
  Using Eclipse 4.5.2 under Linux, Tomcat started under Oracle Java 1.6.0_45</p>