From 8086c4be5d92e04e617ebbcaf8111ac3ca44fe06 Mon Sep 17 00:00:00 2001
From: "markrmiller@gmail.com" <markrmiller@gmail.com>
Date: Sun, 12 Jul 2020 02:18:04 -0500
Subject: [PATCH] #85 Try to prevent so much resizing of this StringBuilder in
 Lucene.

---
 .../src/java/org/apache/lucene/index/IndexWriterConfig.java   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lucene/core/src/java/org/apache/lucene/index/IndexWriterConfig.java b/lucene/core/src/java/org/apache/lucene/index/IndexWriterConfig.java
index 26e7e3dbb6af..eaef6c68fd0c 100644
--- a/lucene/core/src/java/org/apache/lucene/index/IndexWriterConfig.java
+++ b/lucene/core/src/java/org/apache/lucene/index/IndexWriterConfig.java
@@ -475,7 +475,9 @@ public IndexWriterConfig setIndexSort(Sort sort) {
 
   @Override
   public String toString() {
-    StringBuilder sb = new StringBuilder(super.toString());
+    String superString = super.toString();
+    StringBuilder sb = new StringBuilder(superString.length() + 512);
+    sb.append(superString);
     sb.append("writer=").append(writer.get()).append("\n");
     return sb.toString();
   }