From 7c8b9f19e9738ef69b7832e179aec37656175a58 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20=C5=A0ev=C4=8Denko?= <michal.sevcenko@etnetera.cz>
Date: Wed, 5 Apr 2023 15:59:48 +0200
Subject: [PATCH] Update PathParser.java

fixed string out of bounds bug
---
 .../java/com/typesafe/config/waterdrop/impl/PathParser.java     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config/src/main/java/com/typesafe/config/waterdrop/impl/PathParser.java b/config/src/main/java/com/typesafe/config/waterdrop/impl/PathParser.java
index 1edf039f3..191dc9e85 100644
--- a/config/src/main/java/com/typesafe/config/waterdrop/impl/PathParser.java
+++ b/config/src/main/java/com/typesafe/config/waterdrop/impl/PathParser.java
@@ -193,7 +193,7 @@ private static Collection<Token> splitTokenOnPeriod(Token t, ConfigSyntax flavor
             splitTokens.add(Tokens.newUnquotedText(t.origin(), ConfigParseOptions.pathTokenSeparator));
         }
 
-        if (! tokenText.substring(tokenText.length() - ConfigParseOptions.pathTokenSeparator.length(), tokenText.length()).equals(ConfigParseOptions.pathTokenSeparator)) {
+        if (tokenText.length() < ConfigParseOptions.pathTokenSeparator.length() || ! tokenText.substring(tokenText.length() - ConfigParseOptions.pathTokenSeparator.length(), tokenText.length()).equals(ConfigParseOptions.pathTokenSeparator)) {
             splitTokens.remove(splitTokens.size() - 1);
         }