title: Is there a visualization tool that can inspect a Java code base and report inter-package dependencies?
body: <p>We have a Java code base that has grown to be too big for a single monolithic JAR (more than 5000 classes).  One of the tasks that we are investigating is how much effort would it be to break this single JAR into smaller components with controlled dependencies between them.  However, it's somewhat hard to look at a big bag of code and be sure that you are finding the best points of separation without some analysis.</p>
  
  <p>Are there good tools to inspect and visualize the interpackage dependencies?  Given those, we would have a set of suggested cut points where we could begin separating code.</p>
  
  <p>As an example, in the days before Netbeans and Eclipse (and at a different job), we used TogetherJ and TogetherEnterprise.  Those had the ability to do a static package analysis and draw the UML diagram.  That sort of behavior would be optimal but that feature alone is not sufficient to justify the cost.</p>