From c24693c90a082ba719e51d0db9b347fa3b4fdd9d Mon Sep 17 00:00:00 2001
From: Rakesh Venkatesh <rakeshv.com@gmail.com>
Date: Mon, 12 Oct 2020 10:11:55 +0200
Subject: [PATCH 1/2] Show network name in exception message

---
 server/src/main/java/com/cloud/vm/UserVmManagerImpl.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/src/main/java/com/cloud/vm/UserVmManagerImpl.java b/server/src/main/java/com/cloud/vm/UserVmManagerImpl.java
index a931159ea211..6638c09b474a 100644
--- a/server/src/main/java/com/cloud/vm/UserVmManagerImpl.java
+++ b/server/src/main/java/com/cloud/vm/UserVmManagerImpl.java
@@ -3888,7 +3888,7 @@ private void checkIfHostNameUniqueInNtwkDomain(String hostName, List<? extends N
                 // * verify that there are no duplicates
                 if (hostNames.contains(hostName)) {
                     throw new InvalidParameterValueException("The vm with hostName " + hostName + " already exists in the network domain: " + ntwkDomain.getKey() + "; network="
-                            + _networkModel.getNetwork(ntwkId));
+                            + _networkModel.getNetwork(ntwkId).getName());
                 }
             }
         }

From cc58369710cec496544e11bfa1074b4d8f02c99b Mon Sep 17 00:00:00 2001
From: Rohit Yadav <rohit@apache.org>
Date: Fri, 19 Feb 2021 14:04:02 +0530
Subject: [PATCH 2/2] Update
 server/src/main/java/com/cloud/vm/UserVmManagerImpl.java

Co-authored-by: dahn <daan.hoogland@gmail.com>
---
 server/src/main/java/com/cloud/vm/UserVmManagerImpl.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/src/main/java/com/cloud/vm/UserVmManagerImpl.java b/server/src/main/java/com/cloud/vm/UserVmManagerImpl.java
index 6638c09b474a..af410cfc1b3c 100644
--- a/server/src/main/java/com/cloud/vm/UserVmManagerImpl.java
+++ b/server/src/main/java/com/cloud/vm/UserVmManagerImpl.java
@@ -3888,7 +3888,7 @@ private void checkIfHostNameUniqueInNtwkDomain(String hostName, List<? extends N
                 // * verify that there are no duplicates
                 if (hostNames.contains(hostName)) {
                     throw new InvalidParameterValueException("The vm with hostName " + hostName + " already exists in the network domain: " + ntwkDomain.getKey() + "; network="
-                            + _networkModel.getNetwork(ntwkId).getName());
+                            + (_networkModel.getNetwork(ntwkId) != null) ? _networkModel.getNetwork(ntwkId).getName()) : "<unknown>";
                 }
             }
         }