From cf8e40c152992791510bb79eb0af3529ede9dfee Mon Sep 17 00:00:00 2001
From: 648540858 <648540858@qq.com>
Date: Fri, 17 Dec 2021 15:47:14 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96sip=E5=9B=9E=E5=A4=8D?=
 =?UTF-8?q?=E9=80=BB=E8=BE=91?=
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---
 .../transmit/event/request/SIPRequestProcessorParent.java     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/SIPRequestProcessorParent.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/SIPRequestProcessorParent.java
index d6d3dd70..e7f8f727 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/SIPRequestProcessorParent.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/SIPRequestProcessorParent.java
@@ -124,6 +124,10 @@ public abstract class SIPRequestProcessorParent {
 	public void responseAck(RequestEvent evt, int statusCode) throws SipException, InvalidArgumentException, ParseException {
 		Response response = getMessageFactory().createResponse(statusCode, evt.getRequest());
 		ServerTransaction serverTransaction = getServerTransaction(evt);
+		if (serverTransaction == null) {
+			logger.warn("回复失败：{}", response);
+			return;
+		}
 		serverTransaction.sendResponse(response);
 		if (statusCode >= 200 && !"NOTIFY".equals(evt.getRequest().getMethod())) {