From 54029940495bffaead570de20aa18ceb35d1778a Mon Sep 17 00:00:00 2001
From: fhaag95 <fhaag95@gmail.com>
Date: Tue, 12 Dec 2023 09:44:10 +0100
Subject: [PATCH] Fix bug with variable substitution in recipes

---
 src/main/java/de/usd/cstchef/Utils.java | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/main/java/de/usd/cstchef/Utils.java b/src/main/java/de/usd/cstchef/Utils.java
index e3de0e6..908b82e 100644
--- a/src/main/java/de/usd/cstchef/Utils.java
+++ b/src/main/java/de/usd/cstchef/Utils.java
@@ -173,8 +173,11 @@ public static ByteArray replaceVariablesByte(ByteArray bytes) {
 
     public static ByteArray insertAtOffset(ByteArray input, int start, int end, ByteArray newValue) {
         ByteArray prefix = input.subArray(0, start);
-        ByteArray rest = input.subArray(end, input.length());
-
+        ByteArray rest = ByteArray.byteArray("");
+        if (end != input.length()){
+            rest = input.subArray(end, input.length());
+        }
+        
         ByteArray output = prefix.withAppended(newValue).withAppended(rest);
         return output;
     }