diff --git a/components/org.wso2.carbon.identity.api.server.idp/org.wso2.carbon.identity.api.server.idp.v1/src/gen/java/org/wso2/carbon/identity/api/server/idp/v1/model/AuthenticationType.java b/components/org.wso2.carbon.identity.api.server.idp/org.wso2.carbon.identity.api.server.idp.v1/src/gen/java/org/wso2/carbon/identity/api/server/idp/v1/model/AuthenticationType.java
index 1b2660df61..92dfec771b 100644
--- a/components/org.wso2.carbon.identity.api.server.idp/org.wso2.carbon.identity.api.server.idp.v1/src/gen/java/org/wso2/carbon/identity/api/server/idp/v1/model/AuthenticationType.java
+++ b/components/org.wso2.carbon.identity.api.server.idp/org.wso2.carbon.identity.api.server.idp.v1/src/gen/java/org/wso2/carbon/identity/api/server/idp/v1/model/AuthenticationType.java
@@ -69,7 +69,7 @@ public static TypeEnum fromValue(String value) {
 }
 
     private TypeEnum type;
-    private Map<String, Object> properties = new HashMap<>();
+    private Map<String, Object> properties = null;
 
 
     /**
@@ -100,11 +100,9 @@ public AuthenticationType properties(Map<String, Object> properties) {
         return this;
     }
     
-    @ApiModelProperty(example = "{\"username\":\"auth_username\",\"password\":\"auth_password\"}", required = true, value = "")
+    @ApiModelProperty(example = "{\"username\":\"auth_username\",\"password\":\"auth_password\"}", value = "")
     @JsonProperty("properties")
     @Valid
-    @NotNull(message = "Property properties cannot be null.")
-
     public Map<String, Object> getProperties() {
         return properties;
     }
@@ -114,6 +112,9 @@ public void setProperties(Map<String, Object> properties) {
 
 
     public AuthenticationType putPropertiesItem(String key, Object propertiesItem) {
+        if (this.properties == null) {
+            this.properties = new HashMap<>();
+        }
         this.properties.put(key, propertiesItem);
         return this;
     }
diff --git a/components/org.wso2.carbon.identity.api.server.idp/org.wso2.carbon.identity.api.server.idp.v1/src/main/resources/idp.yaml b/components/org.wso2.carbon.identity.api.server.idp/org.wso2.carbon.identity.api.server.idp.v1/src/main/resources/idp.yaml
index 1e62cdb2d8..e05b96d189 100644
--- a/components/org.wso2.carbon.identity.api.server.idp/org.wso2.carbon.identity.api.server.idp.v1/src/main/resources/idp.yaml
+++ b/components/org.wso2.carbon.identity.api.server.idp/org.wso2.carbon.identity.api.server.idp.v1/src/main/resources/idp.yaml
@@ -2895,7 +2895,6 @@ components:
       type: object
       required:
         - type
-        - properties
       properties:
         type:
           type: string