From 0c1583c1beae63465a8ccce50da8b96c327e43a5 Mon Sep 17 00:00:00 2001
From: Timo Bejan <timo.bejan.ext@knecon.com>
Date: Tue, 30 Jul 2024 17:45:05 +0300
Subject: [PATCH] Fixed Index out of bounds exception in
 blockificationpostprocessingservice - this could should be documented btw,
 there are also probably other use-cases where the code doesnt work

---
 .../blockification/BlockificationPostprocessingService.java   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/layoutparser-service/layoutparser-service-processor/src/main/java/com/knecon/fforesight/service/layoutparser/processor/services/blockification/BlockificationPostprocessingService.java b/layoutparser-service/layoutparser-service-processor/src/main/java/com/knecon/fforesight/service/layoutparser/processor/services/blockification/BlockificationPostprocessingService.java
index 640b68f..388e18e 100644
--- a/layoutparser-service/layoutparser-service-processor/src/main/java/com/knecon/fforesight/service/layoutparser/processor/services/blockification/BlockificationPostprocessingService.java
+++ b/layoutparser-service/layoutparser-service-processor/src/main/java/com/knecon/fforesight/service/layoutparser/processor/services/blockification/BlockificationPostprocessingService.java
@@ -273,6 +273,10 @@ public class BlockificationPostprocessingService {
         List<TextPositionSequence> postSequence = new ArrayList<>();
         StringBuilder currentSequence = new StringBuilder();
 
+        if (target.isBlank()){
+            return new WordSequenceResult();
+        }
+
         for (TextPositionSequence sequence : textPositionSequences) {
 
             currentSequence.append(sanitizeString(sequence.toString()));