diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/feign/ApiClient.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/feign/ApiClient.mustache
index 8fbb0ce8c4b..4ae744398e3 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/feign/ApiClient.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/feign/ApiClient.mustache
@@ -94,21 +94,14 @@ public class ApiClient {
     for(String authName : authNames) {
       log.log(Level.FINE, "Creating authentication {0}", authName);
       {{#hasAuthMethods}}
-      RequestInterceptor auth;
+      RequestInterceptor auth = null;
       {{#authMethods}}if ("{{name}}".equals(authName)) {
-      {{#isBasic}}
       {{#isBasicBasic}}
         auth = new HttpBasicAuth();
       {{/isBasicBasic}}
-      {{^isBasicBasic}}
       {{#isBasicBearer}}
         auth = new HttpBearerAuth("{{scheme}}");
       {{/isBasicBearer}}
-      {{^isBasicBearer}}
-        throw new RuntimeException("auth name \"" + authName + "\" does not have a supported http scheme type");
-      {{/isBasicBearer}}
-      {{/isBasicBasic}}
-      {{/isBasic}}
       {{#isApiKey}}
         auth = new ApiKeyAuth({{#isKeyInHeader}}"header"{{/isKeyInHeader}}{{#isKeyInQuery}}"query"{{/isKeyInQuery}}{{#isKeyInCookie}}"cookie"{{/isKeyInCookie}}, "{{keyParamName}}");
       {{/isApiKey}}
@@ -118,7 +111,9 @@ public class ApiClient {
       } else {{/authMethods}}{
         throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
       }
-      addAuthorization(authName, auth);
+      if (auth != null) {
+        addAuthorization(authName, auth);
+      }
       {{/hasAuthMethods}}
       {{^hasAuthMethods}}
       throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/retrofit/ApiClient.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/retrofit/ApiClient.mustache
index db41c807674..c4c422b7ba0 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/retrofit/ApiClient.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/retrofit/ApiClient.mustache
@@ -59,21 +59,14 @@ public class ApiClient {
         this();
         for(String authName : authNames) {
             {{#hasAuthMethods}}
-            Interceptor auth;
+            Interceptor auth = null;
             {{#authMethods}}if ("{{name}}".equals(authName)) {
-            {{#isBasic}}
             {{#isBasicBasic}}
                 auth = new HttpBasicAuth();
             {{/isBasicBasic}}
-            {{^isBasicBasic}}
             {{#isBasicBearer}}
                 auth = new HttpBearerAuth("{{scheme}}");
             {{/isBasicBearer}}
-            {{^isBasicBearer}}
-                throw new RuntimeException("auth name \"" + authName + "\" does not have a supported http scheme type");
-            {{/isBasicBearer}}
-            {{/isBasicBasic}}
-            {{/isBasic}}
             {{#isApiKey}}
                 auth = new ApiKeyAuth({{#isKeyInHeader}}"header"{{/isKeyInHeader}}{{#isKeyInQuery}}"query"{{/isKeyInQuery}}{{#isKeyInCookie}}"cookie"{{/isKeyInCookie}}, "{{keyParamName}}");
             {{/isApiKey}}
@@ -83,7 +76,9 @@ public class ApiClient {
             } else {{/authMethods}}{
                 throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
             }
-            addAuthorization(authName, auth);
+            if (auth != null) {
+                addAuthorization(authName, auth);
+            }
             {{/hasAuthMethods}}
             {{^hasAuthMethods}}
             throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/retrofit2/ApiClient.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/retrofit2/ApiClient.mustache
index 5b736fa9a31..d5abd018cb3 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/retrofit2/ApiClient.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/retrofit2/ApiClient.mustache
@@ -66,15 +66,13 @@ public class ApiClient {
     this();
     for(String authName : authNames) {
       {{#hasAuthMethods}}
-      Interceptor auth;
+      Interceptor auth = null;
       {{#authMethods}}if ("{{name}}".equals(authName)) {
-        {{#isBasic}}{{#isBasicBasic}}
+        {{#isBasicBasic}}
         auth = new HttpBasicAuth();
-        {{/isBasicBasic}}{{^isBasicBasic}}{{#isBasicBearer}}
+        {{/isBasicBasic}}{{#isBasicBearer}}
         auth = new HttpBearerAuth("{{scheme}}");
-        {{/isBasicBearer}}{{^isBasicBearer}}
-        throw new RuntimeException("auth name \"" + authName + "\" does not have a supported http scheme type");
-        {{/isBasicBearer}}{{/isBasicBasic}}{{/isBasic}}
+        {{/isBasicBearer}}
         {{#isApiKey}}
         auth = new ApiKeyAuth({{#isKeyInHeader}}"header"{{/isKeyInHeader}}{{#isKeyInQuery}}"query"{{/isKeyInQuery}}{{#isKeyInCookie}}"cookie"{{/isKeyInCookie}}, "{{keyParamName}}");
         {{/isApiKey}}
@@ -84,8 +82,9 @@ public class ApiClient {
       } else {{/authMethods}}{
         throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
       }
-
-      addAuthorization(authName, auth);
+      if (auth != null) {
+        addAuthorization(authName, auth);
+      }
       {{/hasAuthMethods}}
       {{^hasAuthMethods}}
       throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
diff --git a/modules/openapi-generator/src/main/resources/kotlin-client/libraries/jvm-retrofit2/infrastructure/ApiClient.kt.mustache b/modules/openapi-generator/src/main/resources/kotlin-client/libraries/jvm-retrofit2/infrastructure/ApiClient.kt.mustache
index b9c7716d5f7..73f07ed9a74 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-client/libraries/jvm-retrofit2/infrastructure/ApiClient.kt.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-client/libraries/jvm-retrofit2/infrastructure/ApiClient.kt.mustache
@@ -127,11 +127,17 @@ import okhttp3.MediaType.Companion.toMediaType
         authNames: Array<String>
     ) : this(baseUrl, okHttpClientBuilder{{^kotlinx_serialization}}, serializerBuilder{{/kotlinx_serialization}}) {
         authNames.forEach { authName ->
-            val auth = when (authName) {
-                {{#authMethods}}"{{name}}" -> {{#isBasic}}{{#isBasicBasic}}HttpBasicAuth(){{/isBasicBasic}}{{^isBasicBasic}}{{#isBasicBearer}}HttpBearerAuth("{{scheme}}"){{/isBasicBearer}}{{^isBasicBearer}}throw RuntimeException("auth name $authName does not have a supported http scheme type"){{/isBasicBearer}}{{/isBasicBasic}}{{/isBasic}}{{#isApiKey}}ApiKeyAuth({{#isKeyInHeader}}"header"{{/isKeyInHeader}}{{#isKeyInQuery}}"query"{{/isKeyInQuery}}{{#isKeyInCookie}}"cookie"{{/isKeyInCookie}}, "{{keyParamName}}"){{/isApiKey}}{{#isOAuth}}OAuth(OAuthFlow.{{flow}}, "{{authorizationUrl}}", "{{tokenUrl}}", "{{#scopes}}{{scope}}{{^-last}}, {{/-last}}{{/scopes}}"){{/isOAuth}}{{/authMethods}}
+            val auth = when (authName) { {{#authMethods}}
+                {{#isBasicBasic}}"{{name}}" -> HttpBasicAuth()
+                {{/isBasicBasic}}{{#isBasicBearer}}"{{name}}" -> HttpBearerAuth("{{scheme}}")
+                {{/isBasicBearer}}{{#isApiKey}}"{{name}}" -> ApiKeyAuth({{#isKeyInHeader}}"header"{{/isKeyInHeader}}{{#isKeyInQuery}}"query"{{/isKeyInQuery}}{{#isKeyInCookie}}"cookie"{{/isKeyInCookie}}, "{{keyParamName}}")
+                {{/isApiKey}}{{#isOAuth}}"{{name}}" -> OAuth(OAuthFlow.{{flow}}, "{{authorizationUrl}}", "{{tokenUrl}}", "{{#scopes}}{{scope}}{{^-last}}, {{/-last}}{{/scopes}}")
+                {{/isOAuth}}{{^isBasicBasic}}{{^isBasicBearer}}{{^isApiKey}}{{^isOAuth}}"{{name}}" -> null{{/isOAuth}}{{/isApiKey}}{{/isBasicBearer}}{{/isBasicBasic}}{{/authMethods}}
                 else -> throw RuntimeException("auth name $authName not found in available auth names")
             }
-            addAuthorization(authName, auth)
+            if (auth != null) {
+                addAuthorization(authName, auth)
+            }
         }
     }
 
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/ktor/_principal.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/ktor/_principal.mustache
index 0dd073a8ecd..17c32a4c40a 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/ktor/_principal.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/ktor/_principal.mustache
@@ -1,11 +1,11 @@
 {{#authMethods}}
 {{#isBasicBasic}}
 val principal = call.authentication.principal<UserIdPrincipal>()!!
-{{/isBasicBasic}}
-{{#isApiKey}}
+{{/isBasicBasic}}{{^isBasicBasic}}{{#isApiKey}}
 val principal = call.authentication.principal<ApiPrincipal>()!!
-{{/isApiKey}}
-{{#isOAuth}}
+{{/isApiKey}}{{^isApiKey}}{{#isOAuth}}
 val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
-{{/isOAuth}}
+{{/isOAuth}}{{^isOAuth}}
+val principal = null!!
+{{/isOAuth}}{{/isApiKey}}{{/isBasicBasic}}
 {{/authMethods}}
diff --git a/samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/ApiClient.java b/samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/ApiClient.java
index 868c07e3dea..020dc860b05 100644
--- a/samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/ApiClient.java
+++ b/samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/ApiClient.java
@@ -57,7 +57,7 @@ public class ApiClient {
     this();
     for(String authName : authNames) {
       log.log(Level.FINE, "Creating authentication {0}", authName);
-      RequestInterceptor auth;
+      RequestInterceptor auth = null;
       if ("petstore_auth".equals(authName)) {
         auth = buildOauthRequestInterceptor(OAuthFlow.IMPLICIT, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets");
       } else if ("api_key".equals(authName)) {
@@ -69,7 +69,9 @@ public class ApiClient {
       } else {
         throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
       }
-      addAuthorization(authName, auth);
+      if (auth != null) {
+        addAuthorization(authName, auth);
+      }
     }
   }
 
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/ApiClient.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/ApiClient.java
index c357df72015..43f12eea390 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/ApiClient.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/ApiClient.java
@@ -58,7 +58,7 @@ public class ApiClient {
     this();
     for(String authName : authNames) {
       log.log(Level.FINE, "Creating authentication {0}", authName);
-      RequestInterceptor auth;
+      RequestInterceptor auth = null;
       if ("petstore_auth".equals(authName)) {
         auth = buildOauthRequestInterceptor(OAuthFlow.IMPLICIT, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets");
       } else if ("api_key".equals(authName)) {
@@ -70,11 +70,12 @@ public class ApiClient {
       } else if ("bearer_test".equals(authName)) {
         auth = new HttpBearerAuth("bearer");
       } else if ("http_signature_test".equals(authName)) {
-        throw new RuntimeException("auth name \"" + authName + "\" does not have a supported http scheme type");
       } else {
         throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
       }
-      addAuthorization(authName, auth);
+      if (auth != null) {
+        addAuthorization(authName, auth);
+      }
     }
   }
 
diff --git a/samples/client/petstore/java/retrofit2/src/main/java/org/openapitools/client/ApiClient.java b/samples/client/petstore/java/retrofit2/src/main/java/org/openapitools/client/ApiClient.java
index 7f90cdd6246..6991079fe06 100644
--- a/samples/client/petstore/java/retrofit2/src/main/java/org/openapitools/client/ApiClient.java
+++ b/samples/client/petstore/java/retrofit2/src/main/java/org/openapitools/client/ApiClient.java
@@ -52,25 +52,21 @@ public class ApiClient {
   public ApiClient(String[] authNames) {
     this();
     for(String authName : authNames) {
-      Interceptor auth;
+      Interceptor auth = null;
       if ("petstore_auth".equals(authName)) {
-        
         auth = new OAuth(OAuthFlow.IMPLICIT, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets");
       } else if ("api_key".equals(authName)) {
-        
         auth = new ApiKeyAuth("header", "api_key");
       } else if ("api_key_query".equals(authName)) {
-        
         auth = new ApiKeyAuth("query", "api_key_query");
       } else if ("http_basic_test".equals(authName)) {
-        
         auth = new HttpBasicAuth();
-        
-      } else {
+              } else {
         throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
       }
-
-      addAuthorization(authName, auth);
+      if (auth != null) {
+        addAuthorization(authName, auth);
+      }
     }
   }
 
diff --git a/samples/client/petstore/java/retrofit2rx2/src/main/java/org/openapitools/client/ApiClient.java b/samples/client/petstore/java/retrofit2rx2/src/main/java/org/openapitools/client/ApiClient.java
index 3dbf27ad758..9ef445447eb 100644
--- a/samples/client/petstore/java/retrofit2rx2/src/main/java/org/openapitools/client/ApiClient.java
+++ b/samples/client/petstore/java/retrofit2rx2/src/main/java/org/openapitools/client/ApiClient.java
@@ -53,25 +53,21 @@ public class ApiClient {
   public ApiClient(String[] authNames) {
     this();
     for(String authName : authNames) {
-      Interceptor auth;
+      Interceptor auth = null;
       if ("petstore_auth".equals(authName)) {
-        
         auth = new OAuth(OAuthFlow.IMPLICIT, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets");
       } else if ("api_key".equals(authName)) {
-        
         auth = new ApiKeyAuth("header", "api_key");
       } else if ("api_key_query".equals(authName)) {
-        
         auth = new ApiKeyAuth("query", "api_key_query");
       } else if ("http_basic_test".equals(authName)) {
-        
         auth = new HttpBasicAuth();
-        
-      } else {
+              } else {
         throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
       }
-
-      addAuthorization(authName, auth);
+      if (auth != null) {
+        addAuthorization(authName, auth);
+      }
     }
   }
 
diff --git a/samples/client/petstore/java/retrofit2rx3/src/main/java/org/openapitools/client/ApiClient.java b/samples/client/petstore/java/retrofit2rx3/src/main/java/org/openapitools/client/ApiClient.java
index c1e9542ea98..609df0513c6 100644
--- a/samples/client/petstore/java/retrofit2rx3/src/main/java/org/openapitools/client/ApiClient.java
+++ b/samples/client/petstore/java/retrofit2rx3/src/main/java/org/openapitools/client/ApiClient.java
@@ -53,25 +53,21 @@ public class ApiClient {
   public ApiClient(String[] authNames) {
     this();
     for(String authName : authNames) {
-      Interceptor auth;
+      Interceptor auth = null;
       if ("petstore_auth".equals(authName)) {
-        
         auth = new OAuth(OAuthFlow.IMPLICIT, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets");
       } else if ("api_key".equals(authName)) {
-        
         auth = new ApiKeyAuth("header", "api_key");
       } else if ("api_key_query".equals(authName)) {
-        
         auth = new ApiKeyAuth("query", "api_key_query");
       } else if ("http_basic_test".equals(authName)) {
-        
         auth = new HttpBasicAuth();
-        
-      } else {
+              } else {
         throw new RuntimeException("auth name \"" + authName + "\" not found in available auth names");
       }
-
-      addAuthorization(authName, auth);
+      if (auth != null) {
+        addAuthorization(authName, auth);
+      }
     }
   }
 
diff --git a/samples/client/petstore/kotlin-retrofit2-kotlinx_serialization/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt b/samples/client/petstore/kotlin-retrofit2-kotlinx_serialization/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
index ce6699901b1..884b2e66c28 100644
--- a/samples/client/petstore/kotlin-retrofit2-kotlinx_serialization/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
+++ b/samples/client/petstore/kotlin-retrofit2-kotlinx_serialization/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
@@ -72,11 +72,16 @@ class ApiClient(
         authNames: Array<String>
     ) : this(baseUrl, okHttpClientBuilder) {
         authNames.forEach { authName ->
-            val auth = when (authName) {
-                "petstore_auth" -> OAuth(OAuthFlow.implicit, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets")"api_key" -> ApiKeyAuth("header", "api_key")
+            val auth = when (authName) { 
+                "petstore_auth" -> OAuth(OAuthFlow.implicit, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets")
+                
+                "api_key" -> ApiKeyAuth("header", "api_key")
+                
                 else -> throw RuntimeException("auth name $authName not found in available auth names")
             }
-            addAuthorization(authName, auth)
+            if (auth != null) {
+                addAuthorization(authName, auth)
+            }
         }
     }
 
diff --git a/samples/client/petstore/kotlin-retrofit2-rx3/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt b/samples/client/petstore/kotlin-retrofit2-rx3/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
index e458404e239..3c1dfd67345 100644
--- a/samples/client/petstore/kotlin-retrofit2-rx3/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
+++ b/samples/client/petstore/kotlin-retrofit2-rx3/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
@@ -74,11 +74,16 @@ class ApiClient(
         authNames: Array<String>
     ) : this(baseUrl, okHttpClientBuilder, serializerBuilder) {
         authNames.forEach { authName ->
-            val auth = when (authName) {
-                "petstore_auth" -> OAuth(OAuthFlow.implicit, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets")"api_key" -> ApiKeyAuth("header", "api_key")
+            val auth = when (authName) { 
+                "petstore_auth" -> OAuth(OAuthFlow.implicit, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets")
+                
+                "api_key" -> ApiKeyAuth("header", "api_key")
+                
                 else -> throw RuntimeException("auth name $authName not found in available auth names")
             }
-            addAuthorization(authName, auth)
+            if (auth != null) {
+                addAuthorization(authName, auth)
+            }
         }
     }
 
diff --git a/samples/client/petstore/kotlin-retrofit2/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt b/samples/client/petstore/kotlin-retrofit2/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
index a8c10b9d70c..0d0605bbb60 100644
--- a/samples/client/petstore/kotlin-retrofit2/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
+++ b/samples/client/petstore/kotlin-retrofit2/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
@@ -72,11 +72,16 @@ class ApiClient(
         authNames: Array<String>
     ) : this(baseUrl, okHttpClientBuilder, serializerBuilder) {
         authNames.forEach { authName ->
-            val auth = when (authName) {
-                "petstore_auth" -> OAuth(OAuthFlow.implicit, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets")"api_key" -> ApiKeyAuth("header", "api_key")
+            val auth = when (authName) { 
+                "petstore_auth" -> OAuth(OAuthFlow.implicit, "http://petstore.swagger.io/api/oauth/dialog", "", "write:pets, read:pets")
+                
+                "api_key" -> ApiKeyAuth("header", "api_key")
+                
                 else -> throw RuntimeException("auth name $authName not found in available auth names")
             }
-            addAuthorization(authName, auth)
+            if (auth != null) {
+                addAuthorization(authName, auth)
+            }
         }
     }
 
diff --git a/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/PetApi.kt b/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
index 0743d1d24f8..3265da9d1e5 100644
--- a/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
+++ b/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
@@ -35,24 +35,30 @@ fun Route.PetApi() {
 
     authenticate("petstore_auth") {
     post<Paths.addPet> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         call.respond(HttpStatusCode.NotImplemented)
     }
     }
 
     authenticate("petstore_auth") {
     delete<Paths.deletePet> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         call.respond(HttpStatusCode.NotImplemented)
     }
     }
 
     authenticate("petstore_auth") {
     get<Paths.findPetsByStatus> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         val exampleContentType = "application/json"
             val exampleContentString = """[ {
               "photoUrls" : [ "photoUrls", "photoUrls" ],
@@ -98,8 +104,10 @@ fun Route.PetApi() {
 
     authenticate("petstore_auth") {
     get<Paths.findPetsByTags> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         val exampleContentType = "application/json"
             val exampleContentString = """[ {
               "photoUrls" : [ "photoUrls", "photoUrls" ],
@@ -145,8 +153,10 @@ fun Route.PetApi() {
 
     authenticate("api_key") {
     get<Paths.getPetById> {
+        
         val principal = call.authentication.principal<ApiPrincipal>()!!
         
+        
         val exampleContentType = "application/json"
             val exampleContentString = """{
               "photoUrls" : [ "photoUrls", "photoUrls" ],
@@ -176,24 +186,30 @@ fun Route.PetApi() {
 
     authenticate("petstore_auth") {
     put<Paths.updatePet> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         call.respond(HttpStatusCode.NotImplemented)
     }
     }
 
     authenticate("petstore_auth") {
     post<Paths.updatePetWithForm> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         call.respond(HttpStatusCode.NotImplemented)
     }
     }
 
     authenticate("petstore_auth") {
     post<Paths.uploadFile> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         val exampleContentType = "application/json"
             val exampleContentString = """{
               "code" : 0,
diff --git a/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt b/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt
index c8ae307e103..29fb8cf022f 100644
--- a/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt
+++ b/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt
@@ -38,8 +38,10 @@ fun Route.StoreApi() {
 
     authenticate("api_key") {
     get<Paths.getInventory> {
+        
         val principal = call.authentication.principal<ApiPrincipal>()!!
         
+        
         call.respond(HttpStatusCode.NotImplemented)
     }
     }
diff --git a/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/PetApi.kt b/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
index 0743d1d24f8..3265da9d1e5 100644
--- a/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
+++ b/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
@@ -35,24 +35,30 @@ fun Route.PetApi() {
 
     authenticate("petstore_auth") {
     post<Paths.addPet> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         call.respond(HttpStatusCode.NotImplemented)
     }
     }
 
     authenticate("petstore_auth") {
     delete<Paths.deletePet> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         call.respond(HttpStatusCode.NotImplemented)
     }
     }
 
     authenticate("petstore_auth") {
     get<Paths.findPetsByStatus> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         val exampleContentType = "application/json"
             val exampleContentString = """[ {
               "photoUrls" : [ "photoUrls", "photoUrls" ],
@@ -98,8 +104,10 @@ fun Route.PetApi() {
 
     authenticate("petstore_auth") {
     get<Paths.findPetsByTags> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         val exampleContentType = "application/json"
             val exampleContentString = """[ {
               "photoUrls" : [ "photoUrls", "photoUrls" ],
@@ -145,8 +153,10 @@ fun Route.PetApi() {
 
     authenticate("api_key") {
     get<Paths.getPetById> {
+        
         val principal = call.authentication.principal<ApiPrincipal>()!!
         
+        
         val exampleContentType = "application/json"
             val exampleContentString = """{
               "photoUrls" : [ "photoUrls", "photoUrls" ],
@@ -176,24 +186,30 @@ fun Route.PetApi() {
 
     authenticate("petstore_auth") {
     put<Paths.updatePet> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         call.respond(HttpStatusCode.NotImplemented)
     }
     }
 
     authenticate("petstore_auth") {
     post<Paths.updatePetWithForm> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         call.respond(HttpStatusCode.NotImplemented)
     }
     }
 
     authenticate("petstore_auth") {
     post<Paths.uploadFile> {
+        
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
+        
         val exampleContentType = "application/json"
             val exampleContentString = """{
               "code" : 0,
diff --git a/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt b/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt
index c8ae307e103..29fb8cf022f 100644
--- a/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt
+++ b/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt
@@ -38,8 +38,10 @@ fun Route.StoreApi() {
 
     authenticate("api_key") {
     get<Paths.getInventory> {
+        
         val principal = call.authentication.principal<ApiPrincipal>()!!
         
+        
         call.respond(HttpStatusCode.NotImplemented)
     }
     }