Index: lucene/src/java/org/apache/lucene/index/CheckIndex.java
===================================================================
--- lucene/src/java/org/apache/lucene/index/CheckIndex.java	(revision 1134892)
+++ lucene/src/java/org/apache/lucene/index/CheckIndex.java	(working copy)
@@ -419,6 +419,7 @@
 
     result.newSegments = (SegmentInfos) sis.clone();
     result.newSegments.clear();
+    result.maxSegmentName = -1;
 
     for(int i=0;i<numSegments;i++) {
       final SegmentInfo info = sis.info(i);