From a221ccce94564232e5b8672dfcfe0d4f7105ff04 Mon Sep 17 00:00:00 2001
From: Anders Jensen-Urstad <anders.jensen-urstad@kb.se>
Date: Thu, 28 Nov 2024 17:29:47 +0100
Subject: [PATCH] fix(rest/search2): index of out bounds if query is whitespace
 or ends with double whitespace

---
 whelk-core/src/main/groovy/whelk/search2/parse/Lex.java | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/whelk-core/src/main/groovy/whelk/search2/parse/Lex.java b/whelk-core/src/main/groovy/whelk/search2/parse/Lex.java
index 76e9744cfd..8b7eee5192 100644
--- a/whelk-core/src/main/groovy/whelk/search2/parse/Lex.java
+++ b/whelk-core/src/main/groovy/whelk/search2/parse/Lex.java
@@ -38,9 +38,7 @@ public static LinkedList<Symbol> lexQuery(String queryString) throws InvalidQuer
     }
 
     private static void consumeWhiteSpace(StringBuilder query, MutableInteger offset) {
-        if (query.isEmpty())
-            return;
-        while (Character.isWhitespace(query.charAt(0))) {
+        while (!query.isEmpty() && Character.isWhitespace(query.charAt(0))) {
             query.deleteCharAt(0);
             offset.increase(1);
         }