From b91b113e861457fc38029306fc2f39e3a04d0c17 Mon Sep 17 00:00:00 2001
From: Doug Cutting <cutting@apache.org>
Date: Sat, 20 Oct 2001 02:32:59 +0000
Subject: [PATCH] Fixed a bug where adding an optimized index to an empty index
 failed.

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@149614 13f79535-47bb-0310-9956-ffa450edef68
---
 src/java/org/apache/lucene/index/IndexWriter.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/java/org/apache/lucene/index/IndexWriter.java b/src/java/org/apache/lucene/index/IndexWriter.java
index fa1335c12cf..41e2a6d3bd1 100644
--- a/src/java/org/apache/lucene/index/IndexWriter.java
+++ b/src/java/org/apache/lucene/index/IndexWriter.java
@@ -206,7 +206,8 @@ public final class IndexWriter {
     flushRamSegments();
     while (segmentInfos.size() > 1 ||
 	   (segmentInfos.size() == 1 &&
-	    SegmentReader.hasDeletions(segmentInfos.info(0)))){
+	    (SegmentReader.hasDeletions(segmentInfos.info(0)) ||
+             segmentInfos.info(0).dir != directory))) {
       int minSegment = segmentInfos.size() - mergeFactor;
       mergeSegments(minSegment < 0 ? 0 : minSegment);
     }