From 569328bc18dab090a29bcb541bca1b204c17f172 Mon Sep 17 00:00:00 2001
From: Matthias Hanel <mh@synadia.com>
Date: Mon, 4 Apr 2022 17:40:19 -0400
Subject: [PATCH] fix crash on shutdown with meta being nil (#2999)

Signed-off-by: Matthias Hanel <mh@synadia.com>
---
 server/jetstream.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/server/jetstream.go b/server/jetstream.go
index a6cbbfca..d9f94ef7 100644
--- a/server/jetstream.go
+++ b/server/jetstream.go
@@ -774,6 +774,10 @@ func (s *Server) migrateEphemerals() {
 	var consumers []*consumerAssignment
 
 	js.mu.Lock()
+	if cc.meta == nil {
+		js.mu.Unlock()
+		return
+	}
 	ourID := cc.meta.ID()
 	for _, asa := range cc.streams {
 		for _, sa := range asa {