diff --git a/main/src/com/google/refine/commands/HttpHeadersSupport.java b/main/src/com/google/refine/commands/HttpHeadersSupport.java
index 6b1690bbd..6bac9db5b 100644
--- a/main/src/com/google/refine/commands/HttpHeadersSupport.java
+++ b/main/src/com/google/refine/commands/HttpHeadersSupport.java
@@ -41,6 +41,8 @@ import com.google.refine.RefineServlet;
 
 abstract public class HttpHeadersSupport {
 
+    static final protected Map<String, HttpHeaderInfo> s_headers = new HashMap<String, HttpHeaderInfo>();
+
     static public class HttpHeaderInfo {
         final public String                 name;
         final public String                 header;
@@ -52,9 +54,7 @@ abstract public class HttpHeadersSupport {
             this.defaultValue = defaultValue;
         }
     }
-    
-    static final protected Map<String, HttpHeaderInfo> s_headers = new HashMap<String, HttpHeaderInfo>();
-    
+
     static {
         registerHttpHeader("User-Agent", RefineServlet.FULLNAME);
         registerHttpHeader("Accept", "*/*");
diff --git a/main/src/com/google/refine/commands/column/AddColumnByFetchingURLsCommand.java b/main/src/com/google/refine/commands/column/AddColumnByFetchingURLsCommand.java
index d6ae70d3d..ebf6a89e0 100644
--- a/main/src/com/google/refine/commands/column/AddColumnByFetchingURLsCommand.java
+++ b/main/src/com/google/refine/commands/column/AddColumnByFetchingURLsCommand.java
@@ -37,7 +37,6 @@ import javax.servlet.http.HttpServletRequest;
 
 import org.json.JSONObject;
 import org.json.JSONArray;
-import java.util.Enumeration;
 
 import com.google.refine.commands.EngineDependentCommand;
 import com.google.refine.model.AbstractOperation;
diff --git a/main/src/com/google/refine/operations/column/ColumnAdditionByFetchingURLsOperation.java b/main/src/com/google/refine/operations/column/ColumnAdditionByFetchingURLsOperation.java
index 6799b782f..d231fad04 100644
--- a/main/src/com/google/refine/operations/column/ColumnAdditionByFetchingURLsOperation.java
+++ b/main/src/com/google/refine/operations/column/ColumnAdditionByFetchingURLsOperation.java
@@ -350,7 +350,6 @@ public class ColumnAdditionByFetchingURLsOperation extends EngineDependentOperat
                         urlConnection.setRequestProperty(info.header, httpHeaders.get(headerLabel));
                     }
                 }
-//                    urlConnection.setRequestProperty(_headerKey, _headerValue);
 
                 try {
                     InputStream is = urlConnection.getInputStream();