import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;

public class ChangeLogSaver {
  public static void saveChangeLog() throws Exception {
    URL url = new URL("http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/DocumentHistory.html");
    try (InputStream input = url.openStream();
         OutputStream output = new FileOutputStream("testData/CloudFormation-ChangeLog.html")) {
      CrawlerUtils.copyStream(input, output);
    }
  }
}

@@ -1,20 +1,59 @@
+import org.apache.commons.io.IOUtils;%0A%0A
 import java.io.FileO
@@ -493,15 +493,10 @@
     
-Crawler
+IO
 Util
@@ -501,22 +501,16 @@
 ils.copy
-Stream
 (input, 

use IOUtils