code: public static void closeEL(InputStream is) {
  	try {
  	    if (is != null) is.close();
  	}
  	// catch (AlwaysThrow at) {throw at;}
  	catch (Throwable t) {
  	    ExceptionUtil.rethrowIfNecessary(t);
  	}
      }
docs: close inputstream without a Exception
  
  @param is