From 05542d86b14b3aeaf60df01b5ced4f0adfbf2d55 Mon Sep 17 00:00:00 2001
From: byte0ne <bossard@mla.io>
Date: Thu, 24 Oct 2024 14:27:02 +0200
Subject: [PATCH] Fix IndexOutOfBoundsException

dataCommunicator may be empty at the time beforeClientResponse runs.
---
 .../vaadin/componentfactory/selectiongrid/SelectionGrid.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/selection-grid-flow/src/main/java/com/vaadin/componentfactory/selectiongrid/SelectionGrid.java b/selection-grid-flow/src/main/java/com/vaadin/componentfactory/selectiongrid/SelectionGrid.java
index 3f5777a..6563ee8 100644
--- a/selection-grid-flow/src/main/java/com/vaadin/componentfactory/selectiongrid/SelectionGrid.java
+++ b/selection-grid-flow/src/main/java/com/vaadin/componentfactory/selectiongrid/SelectionGrid.java
@@ -180,7 +180,7 @@ private Set<T> obtainNewSelectedItems(int fromIndex, int toIndex) {
 		int from = Math.min(fromIndex, toIndex);
 		int to = Math.max(fromIndex, toIndex) + 1;
 		int pageSize = dataCommunicator.getPageSize();
-		if (to - from < (pageSize * 2) - 3) {
+		if (dataCommunicator.getItemCount() > 0 && to - from < (pageSize * 2) - 3) {
 			// if the range to be retrieved is smaller than 2 pages
 			// ask the dataCommunicator to retrieve the items so the cache is used
 			for(int i = from; i < to; i++) {