From 3a902670e04de0fed0223f81c46bf83c73be1095 Mon Sep 17 00:00:00 2001
From: Stephen Paul Weber <singpolyma@singpolyma.net>
Date: Wed, 21 Feb 2024 09:07:19 -0500
Subject: [PATCH] Don't try to encrypt null body

---
 .../siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java b/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java
index bba24d90b5a5c8899e7441135b66e29144b12925..790e33bd65d764c21faa24d730720d53fcfdaf53 100644
--- a/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java
+++ b/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java
@@ -146,6 +146,8 @@ public class XmppAxolotlMessage {
     }
 
     void encrypt(final String plaintext) throws CryptoFailedException {
+        if (plaintext == null) return;
+
         try {
             SecretKey secretKey = new SecretKeySpec(innerKey, KEYTYPE);
             IvParameterSpec ivSpec = new IvParameterSpec(iv);