From 9f3395f256137bae6db9296370cda967dc523d52 Mon Sep 17 00:00:00 2001
From: Luck <git@lucko.me>
Date: Mon, 2 Mar 2020 22:52:08 +0000
Subject: [PATCH] Fix StringIndexOutOfBoundsException with empty string in
 QuotedStringTokenizer (#2041)

---
 .../luckperms/common/command/utils/QuotedStringTokenizer.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/src/main/java/me/lucko/luckperms/common/command/utils/QuotedStringTokenizer.java b/common/src/main/java/me/lucko/luckperms/common/command/utils/QuotedStringTokenizer.java
index baf4badc5..fe7737e21 100644
--- a/common/src/main/java/me/lucko/luckperms/common/command/utils/QuotedStringTokenizer.java
+++ b/common/src/main/java/me/lucko/luckperms/common/command/utils/QuotedStringTokenizer.java
@@ -44,7 +44,7 @@ public class QuotedStringTokenizer {
         while (hasNext()) {
             output.add(readString());
         }
-        if (!omitEmptyStringAtEnd && isWhitespace(peek(-1))) {
+        if (!omitEmptyStringAtEnd && this.cursor > 0 && isWhitespace(peek(-1))) {
             output.add("");
         }
         return output;