From 146d234dec288df9f423f13c0a87a0e9b5b31bb3 Mon Sep 17 00:00:00 2001
From: CalDescent <caldescent@protonmail.com>
Date: Sat, 5 Mar 2022 17:25:48 +0000
Subject: [PATCH] Additional defensiveness in ArbitraryDataFile.fromHash() to
 avoid similar future bugs.

---
 src/main/java/org/qortal/arbitrary/ArbitraryDataFile.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/org/qortal/arbitrary/ArbitraryDataFile.java b/src/main/java/org/qortal/arbitrary/ArbitraryDataFile.java
index 4fd2ee2e..575f103b 100644
--- a/src/main/java/org/qortal/arbitrary/ArbitraryDataFile.java
+++ b/src/main/java/org/qortal/arbitrary/ArbitraryDataFile.java
@@ -110,6 +110,9 @@ public class ArbitraryDataFile {
     }
 
     public static ArbitraryDataFile fromHash(byte[] hash, byte[] signature) throws DataException {
+        if (hash == null) {
+            return null;
+        }
         return ArbitraryDataFile.fromHash58(Base58.encode(hash), signature);
     }