From 517fc6e0f29ba3bd90806b2922af105e8023724b Mon Sep 17 00:00:00 2001
From: Florian Schmaus <flo@geekplace.eu>
Date: Sat, 16 Dec 2017 12:37:11 +0100
Subject: [PATCH] Add assert to IpAddressUtil.isIPv4LiteralAddress(String)

---
 .../main/java/org/jivesoftware/smack/util/IpAddressUtil.java    | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/smack-core/src/main/java/org/jivesoftware/smack/util/IpAddressUtil.java b/smack-core/src/main/java/org/jivesoftware/smack/util/IpAddressUtil.java
index 55586e2c3..8d1ad7b78 100644
--- a/smack-core/src/main/java/org/jivesoftware/smack/util/IpAddressUtil.java
+++ b/smack-core/src/main/java/org/jivesoftware/smack/util/IpAddressUtil.java
@@ -29,6 +29,8 @@ public class IpAddressUtil {
             return false;
         }
 
+        assert matcher.groupCount() == 4;
+
         for (int i = 1; i <= 4; i++) {
             String ipSegment = matcher.group(i);
             int ipSegmentInt;