private static File buildJar2() throws FileNotFoundException, IOException {
   JarBuilder jar2Builder = new JarBuilder(tmpFolder, "jar2.jar");
   jar2Builder.addResourceFile("com/jar2/resource.file", "jar2");
   jar2Builder.addResourceFile("com/test/resource2.file", "resource2");
   return jar2Builder.build();
 }
 private static File buildJar3() throws FileNotFoundException, IOException {
   JarBuilder jar3Builder = new JarBuilder(tmpFolder, "jar3.jar");
   jar3Builder.addResourceFile("com/test/resource3.file", "resource3");
   jar3Builder.addResourceFile("com/missing/jar3/resource.file", "jar3");
   return jar3Builder.build();
 }