code: @Override
      public void deleteUnpackedWAR(StandardContext standardContext)
      {
          File unpackDir = new File(standardHost.getAppBase(), standardContext.getPath().substring(1));
          if (unpackDir.exists())
          {
              ExpandWar.deleteDir(unpackDir);
          }
      }
docs: Make sure an the unpacked WAR is not left behind
  you would think Tomcat would cleanup an unpacked WAR, but it doesn't