From 87af1ed9f56b20d88a899319eccb48550297be2a Mon Sep 17 00:00:00 2001
From: Craig Raw <craigraw@gmail.com>
Date: Fri, 22 May 2026 10:28:17 +0200
Subject: [PATCH] fix potential npe on transaction entry tooltip

---
 .../com/sparrowwallet/sparrow/wallet/TransactionEntry.java   | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/sparrowwallet/sparrow/wallet/TransactionEntry.java b/src/main/java/com/sparrowwallet/sparrow/wallet/TransactionEntry.java
index c94a0fe3..e68d6a94 100644
--- a/src/main/java/com/sparrowwallet/sparrow/wallet/TransactionEntry.java
+++ b/src/main/java/com/sparrowwallet/sparrow/wallet/TransactionEntry.java
@@ -245,8 +245,11 @@ public class TransactionEntry extends Entry implements Comparable<TransactionEnt
 
     public Long getVSizeFromTip() {
         if(!AppServices.getMempoolHistogram().isEmpty()) {
+            Double feeRate = blockTransaction.getFeeRate();
+            if(feeRate == null) {
+                return null;
+            }
             Set<MempoolRateSize> rateSizes = AppServices.getMempoolHistogram().get(AppServices.getMempoolHistogram().lastKey());
-            double feeRate = blockTransaction.getFeeRate();
             return rateSizes.stream().filter(rateSize -> rateSize.getFee() > feeRate).mapToLong(MempoolRateSize::getVSize).sum();
         }