From 85945ef2a78bf8dc7fa037ad5f41455f462c6396 Mon Sep 17 00:00:00 2001
From: Mike McCandless <mikemccand@apache.org>
Date: Thu, 17 Mar 2016 10:10:28 -0400
Subject: [PATCH] add asserts

---
 lucene/core/src/java/org/apache/lucene/util/bkd/BKDWriter.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lucene/core/src/java/org/apache/lucene/util/bkd/BKDWriter.java b/lucene/core/src/java/org/apache/lucene/util/bkd/BKDWriter.java
index 10d97e3db46..fd3408d4c8d 100644
--- a/lucene/core/src/java/org/apache/lucene/util/bkd/BKDWriter.java
+++ b/lucene/core/src/java/org/apache/lucene/util/bkd/BKDWriter.java
@@ -977,12 +977,14 @@ public class BKDWriter implements Closeable {
       System.arraycopy(reader.packedValue(), splitDim*bytesPerDim, scratch1, 0, bytesPerDim);
       if (numDims > 1) {
 
+        assert ordBitSet.get(reader.ord()) == false;
         ordBitSet.set(reader.ord());
 
         // Start at 1 because we already did the first value above (so we could keep the split value):
         for(int i=1;i<rightCount;i++) {
           result = reader.next();
           assert result;
+          assert ordBitSet.get(reader.ord()) == false;
           ordBitSet.set(reader.ord());
         }
       }