code: @Override
  	public InputStream getResourceAsInputStream(String resourceName) throws IOException {
  
  		try {
  			return imgRsHandler.getResourceAsStream(resourceName);
  		} catch (ResourceNotFoundException e) {
  			throw new IOException("The resource '" + resourceName + "' was not found.");
  		}
  	}
docs: /*
  (non-Javadoc)
  
  @see org.carrot2.labs.smartsprites.resource.ResourceHandler#
  getResourceAsStream(java.lang.String)