diff --git a/sdk/eventgrid/mgmt-v2018_01_01/pom.xml b/sdk/eventgrid/mgmt-v2018_01_01/pom.xml
index 69db592497b2a..93f70d40b7863 100644
--- a/sdk/eventgrid/mgmt-v2018_01_01/pom.xml
+++ b/sdk/eventgrid/mgmt-v2018_01_01/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>com.microsoft.azure</groupId>
         <artifactId>azure-arm-parent</artifactId>
-        <version>1.2.0</version>
+        <version>1.1.0</version>
         <relativePath>../../../pom.management.xml</relativePath>
     </parent>
     <artifactId>azure-mgmt-eventgrid</artifactId>
@@ -71,6 +71,8 @@
             <artifactId>azure-arm-client-runtime</artifactId>
             <type>test-jar</type>
             <scope>test</scope>
+            <!--Below version for test jar needs to be removed, this will be done as part of v1-runtime 1.6.7-->
+            <version>1.6.5</version>
         </dependency>
     </dependencies>
     <build>
diff --git a/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/EventHubEventSubscriptionDestination.java b/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/EventHubEventSubscriptionDestination.java
index fad21465afa0e..7c17220516004 100644
--- a/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/EventHubEventSubscriptionDestination.java
+++ b/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/EventHubEventSubscriptionDestination.java
@@ -16,7 +16,7 @@
 /**
  * Information about the event hub destination for an event subscription.
  */
-@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "endpointType")
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "endpointType", defaultImpl = EventHubEventSubscriptionDestination.class)
 @JsonTypeName("EventHub")
 @JsonFlatten
 public class EventHubEventSubscriptionDestination extends EventSubscriptionDestination {
diff --git a/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/EventSubscriptionDestination.java b/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/EventSubscriptionDestination.java
index 15fdde382b2df..c3f9a2822f35d 100644
--- a/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/EventSubscriptionDestination.java
+++ b/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/EventSubscriptionDestination.java
@@ -15,7 +15,7 @@
 /**
  * Information about the destination for an event subscription.
  */
-@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "endpointType")
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "endpointType", defaultImpl = EventSubscriptionDestination.class)
 @JsonTypeName("EventSubscriptionDestination")
 @JsonSubTypes({
     @JsonSubTypes.Type(name = "WebHook", value = WebHookEventSubscriptionDestination.class),
diff --git a/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/WebHookEventSubscriptionDestination.java b/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/WebHookEventSubscriptionDestination.java
index 06a21bd9d1c04..a44380505df2a 100644
--- a/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/WebHookEventSubscriptionDestination.java
+++ b/sdk/eventgrid/mgmt-v2018_01_01/src/main/java/com/microsoft/azure/management/eventgrid/v2018_01_01/WebHookEventSubscriptionDestination.java
@@ -16,7 +16,7 @@
 /**
  * Information about the webhook destination for an event subscription.
  */
-@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "endpointType")
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "endpointType", defaultImpl = WebHookEventSubscriptionDestination.class)
 @JsonTypeName("WebHook")
 @JsonFlatten
 public class WebHookEventSubscriptionDestination extends EventSubscriptionDestination {