From 46ed3d4c97a505693a7a43ac7b70a28fcecf03ae Mon Sep 17 00:00:00 2001
From: Trustin Lee <t@motd.kr>
Date: Wed, 21 May 2014 20:02:15 +0900
Subject: [PATCH] Fix NPE in OpenSslEngine

---
 .../src/main/java/io/netty/handler/ssl/OpenSslEngine.java   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/handler/src/main/java/io/netty/handler/ssl/OpenSslEngine.java b/handler/src/main/java/io/netty/handler/ssl/OpenSslEngine.java
index 677df6c9d2..a753c0ba6b 100644
--- a/handler/src/main/java/io/netty/handler/ssl/OpenSslEngine.java
+++ b/handler/src/main/java/io/netty/handler/ssl/OpenSslEngine.java
@@ -808,7 +808,11 @@ public final class OpenSslEngine extends SSLEngine {
                 if (applicationProtocol == null) {
                     applicationProtocol = fallbackApplicationProtocol;
                 }
-                this.applicationProtocol = applicationProtocol.replace(':', '_');
+                if (applicationProtocol != null) {
+                    this.applicationProtocol = applicationProtocol.replace(':', '_');
+                } else {
+                    this.applicationProtocol = null;
+                }
                 return FINISHED;
             }