diff --git a/samples/openapi3/client/petstore/ruby/docs/EnumTest.md b/samples/openapi3/client/petstore/ruby/docs/EnumTest.md
index a067b21bb50..031a0abf234 100644
--- a/samples/openapi3/client/petstore/ruby/docs/EnumTest.md
+++ b/samples/openapi3/client/petstore/ruby/docs/EnumTest.md
@@ -21,7 +21,10 @@ instance = Petstore::EnumTest.new(enum_string: null,
                                  enum_string_required: null,
                                  enum_integer: null,
                                  enum_number: null,
-                                 outer_enum: null)
+                                 outer_enum: null,
+                                 outer_enum_integer: null,
+                                 outer_enum_default_value: null,
+                                 outer_enum_integer_default_value: null)
 ```
 
 
diff --git a/samples/openapi3/client/petstore/ruby/docs/OuterEnumDefaultValue.md b/samples/openapi3/client/petstore/ruby/docs/OuterEnumDefaultValue.md
index eca04057e8b..2a63ad3058b 100644
--- a/samples/openapi3/client/petstore/ruby/docs/OuterEnumDefaultValue.md
+++ b/samples/openapi3/client/petstore/ruby/docs/OuterEnumDefaultValue.md
@@ -4,4 +4,12 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 
+## Code Sample
+
+```ruby
+require 'Petstore'
+
+instance = Petstore::OuterEnumDefaultValue.new()
+```
+
 
diff --git a/samples/openapi3/client/petstore/ruby/docs/OuterEnumInteger.md b/samples/openapi3/client/petstore/ruby/docs/OuterEnumInteger.md
index 8925eacfc30..1bc31bce997 100644
--- a/samples/openapi3/client/petstore/ruby/docs/OuterEnumInteger.md
+++ b/samples/openapi3/client/petstore/ruby/docs/OuterEnumInteger.md
@@ -4,4 +4,12 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 
+## Code Sample
+
+```ruby
+require 'Petstore'
+
+instance = Petstore::OuterEnumInteger.new()
+```
+
 
diff --git a/samples/openapi3/client/petstore/ruby/docs/OuterEnumIntegerDefaultValue.md b/samples/openapi3/client/petstore/ruby/docs/OuterEnumIntegerDefaultValue.md
index 3e6fd2306bd..1b35769909a 100644
--- a/samples/openapi3/client/petstore/ruby/docs/OuterEnumIntegerDefaultValue.md
+++ b/samples/openapi3/client/petstore/ruby/docs/OuterEnumIntegerDefaultValue.md
@@ -4,4 +4,12 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 
+## Code Sample
+
+```ruby
+require 'Petstore'
+
+instance = Petstore::OuterEnumIntegerDefaultValue.new()
+```
+
 
diff --git a/samples/openapi3/client/petstore/ruby/lib/petstore/models/enum_test.rb b/samples/openapi3/client/petstore/ruby/lib/petstore/models/enum_test.rb
index ed101203236..1e4df7f8659 100644
--- a/samples/openapi3/client/petstore/ruby/lib/petstore/models/enum_test.rb
+++ b/samples/openapi3/client/petstore/ruby/lib/petstore/models/enum_test.rb
@@ -115,16 +115,16 @@ module Petstore
         self.outer_enum = attributes[:'outer_enum']
       end
 
-      if attributes.has_key?(:'outerEnumInteger')
-        self.outer_enum_integer = attributes[:'outerEnumInteger']
+      if attributes.key?(:'outer_enum_integer')
+        self.outer_enum_integer = attributes[:'outer_enum_integer']
       end
 
-      if attributes.has_key?(:'outerEnumDefaultValue')
-        self.outer_enum_default_value = attributes[:'outerEnumDefaultValue']
+      if attributes.key?(:'outer_enum_default_value')
+        self.outer_enum_default_value = attributes[:'outer_enum_default_value']
       end
 
-      if attributes.has_key?(:'outerEnumIntegerDefaultValue')
-        self.outer_enum_integer_default_value = attributes[:'outerEnumIntegerDefaultValue']
+      if attributes.key?(:'outer_enum_integer_default_value')
+        self.outer_enum_integer_default_value = attributes[:'outer_enum_integer_default_value']
       end
     end
 
diff --git a/samples/server/petstore/jaxrs-jersey/src/gen/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/jaxrs-jersey/src/gen/java/org/openapitools/model/EnumTest.java
index 9a1207f0900..4a0d41fb419 100644
--- a/samples/server/petstore/jaxrs-jersey/src/gen/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/jaxrs-jersey/src/gen/java/org/openapitools/model/EnumTest.java
@@ -294,7 +294,7 @@ public class EnumTest   {
    **/
   @JsonProperty("outerEnumInteger")
   @ApiModelProperty(value = "")
-  @Valid
+  @Valid 
   public OuterEnumInteger getOuterEnumInteger() {
     return outerEnumInteger;
   }
@@ -314,7 +314,7 @@ public class EnumTest   {
    **/
   @JsonProperty("outerEnumDefaultValue")
   @ApiModelProperty(value = "")
-  @Valid
+  @Valid 
   public OuterEnumDefaultValue getOuterEnumDefaultValue() {
     return outerEnumDefaultValue;
   }
@@ -334,7 +334,7 @@ public class EnumTest   {
    **/
   @JsonProperty("outerEnumIntegerDefaultValue")
   @ApiModelProperty(value = "")
-  @Valid
+  @Valid 
   public OuterEnumIntegerDefaultValue getOuterEnumIntegerDefaultValue() {
     return outerEnumIntegerDefaultValue;
   }