title: Share object reference between different JUnit tests
body: <p>I have a couple of JUnit tests which need a reference for a expensive resource (a <a href="http://wala.sourceforge.net/wiki/index.php/UserGuide%3aClassHierarchy" rel="nofollow">WALA class hierachie</a>), which needs about 30s to be created. I would like to share this reference in my whole test suite.</p>
  
  <p>I thought about a static member in a base class which is laziely initiated with a <code>@BeforeClass</code> method. After test is run the JVM should be determined anyway.</p>
  
  <p>Is there any other way to accomplish this? Or any other best practice?</p>