From 6eec23c00bc2a3fd0e8c7d5208168b716e94a319 Mon Sep 17 00:00:00 2001
From: Lauri Tulmin <ltulmin@splunk.com>
Date: Wed, 9 Aug 2023 15:07:36 +0300
Subject: [PATCH] Fix npe with pulsar and ssl (#9166)

---
 .../common/internal/client/NettySslInstrumentationHandler.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/instrumentation/netty/netty-4-common/library/src/main/java/io/opentelemetry/instrumentation/netty/v4/common/internal/client/NettySslInstrumentationHandler.java b/instrumentation/netty/netty-4-common/library/src/main/java/io/opentelemetry/instrumentation/netty/v4/common/internal/client/NettySslInstrumentationHandler.java
index 24731fc427..774181808f 100644
--- a/instrumentation/netty/netty-4-common/library/src/main/java/io/opentelemetry/instrumentation/netty/v4/common/internal/client/NettySslInstrumentationHandler.java
+++ b/instrumentation/netty/netty-4-common/library/src/main/java/io/opentelemetry/instrumentation/netty/v4/common/internal/client/NettySslInstrumentationHandler.java
@@ -94,7 +94,8 @@ public final class NettySslInstrumentationHandler extends ChannelDuplexHandler {
     promise.addListener(
         future -> {
           // there won't be any SSL handshake if the channel fails to connect
-          if (!future.isSuccess()) {
+          // give up when channelRegistered wasn't called and parentContext is null
+          if (!future.isSuccess() || parentContext == null) {
             return;
           }
           request = NettySslRequest.create(ctx.channel());