      /**
       * @param m The mapping for the current code segment. null if the segment
       *     is unmapped.
-@@ -485,25 +402,14 @@ public class SourceMap {
+@@ -485,25 +402,15 @@ public class SourceMap {
       * @param endCol The ending column
       * @throws IOException
       */

    * segments are visited with a null mapping, unused mapping are not visited.
    */
-  private class MappingTraversal {
-    // The last line and column written
-    private int line;
-    private int col;
 

     }
 
     /**
@@ -570,47 +493,54 @@ public class SourceMap {
      * Write any needed entries from the current position to the end of the
      * provided mapping.
      */
