diff --git a/src/java/org/apache/lucene/index/FieldsReader.java b/src/java/org/apache/lucene/index/FieldsReader.java
index 5682d06716d..514b13ff9a7 100644
--- a/src/java/org/apache/lucene/index/FieldsReader.java
+++ b/src/java/org/apache/lucene/index/FieldsReader.java
@@ -61,20 +61,25 @@ import org.apache.lucene.store.InputStream;
 import org.apache.lucene.document.Document;
 import org.apache.lucene.document.Field;
 
+/**
+ * Class responsible for access to stored document fields.
+ * It uses <segment>.fdt and <segment>.fdx; files.
+ *
+ * @version $Id$
+ */
 final class FieldsReader {
   private FieldInfos fieldInfos;
   private InputStream fieldsStream;
   private InputStream indexStream;
   private int size;
 
-  FieldsReader(Directory d, String segment, FieldInfos fn)
-       throws IOException {
+  FieldsReader(Directory d, String segment, FieldInfos fn) throws IOException {
     fieldInfos = fn;
 
     fieldsStream = d.openFile(segment + ".fdt");
     indexStream = d.openFile(segment + ".fdx");
 
-    size = (int)indexStream.length() / 8;
+    size = (int)(indexStream.length() / 8);
   }
 
   final void close() throws IOException {
@@ -90,7 +95,7 @@ final class FieldsReader {
     indexStream.seek(n * 8L);
     long position = indexStream.readLong();
     fieldsStream.seek(position);
-    
+
     Document doc = new Document();
     int numFields = fieldsStream.readVInt();
     for (int i = 0; i < numFields; i++) {