Index: lucene/MIGRATE.txt
===================================================================
--- lucene/MIGRATE.txt	(revision 1297475)
+++ lucene/MIGRATE.txt	(working copy)
@@ -95,15 +95,22 @@
         }
 
       Do this:
- 
-        FieldsEnum fieldsEnum = ...;
-	String field;
-	while((field = fieldsEnum.next()) != null) {
-	  TermsEnum termsEnum = fieldsEnum.terms();
-	  BytesRef text;
-	  while((text = termsEnum.next()) != null) {
-	    System.out.println("field=" + field + "; text=" + text.utf8ToString());
-	  }
+        /* MultiFields is the slow solution, see below for more information
+            on getting fields from an AtomicReader. */
+        Fields fields = MultiFields.getFields(indexReader);
+        if (fields != null) {
+          FieldsEnum fieldsEnum = fields.iterator(); 
+          String field;
+          while((field = fieldsEnum.next()) != null) {
+            Terms terms = fieldsEnum.terms();
+            if (terms != null) {
+            TermsEnum termsEnum = terms.iterator(null);
+            BytesRef text;
+            while((text = termsEnum.next()) != null) {
+              System.out.println("field=" + field + "; text=" + text.utf8ToString());
+            }
+          }
+       }
 
     * TermDocs is renamed to DocsEnum.  Instead of this: