code: public void releaseResources() {
  		for (InputStream str : fis) {
  			try {
  				str.close();
  			} catch (Exception e) {
  				LOG.info("Exception while trying to close streams", e);
  			}
  		}
  	}
docs: You MUST call this method after you finish running your tests. <br/>
  Usually you can do this in a @After method (tearDown()). <br/>
  If you just extend the provided {@code AbstractSoSBase} you won't need to
  worry about it