Generate Petstore sample with 1.0.57-SNAPSHOT to add Feign 13 support

Author: lucasls

pom.xml

@@ -1201,7 +1201,7 @@
     </repositories>
     <properties>
         <maven.compiler.release>8</maven.compiler.release>
-        <swagger-codegen-generators-version>1.0.56</swagger-codegen-generators-version>
+        <swagger-codegen-generators-version>1.0.57-SNAPSHOT</swagger-codegen-generators-version>
         <swagger-core-version>2.2.28</swagger-core-version>
         <swagger-core-version-v1>1.6.15</swagger-core-version-v1>
         <swagger-parser-version>2.1.25</swagger-parser-version>

samples/client/petstore/java/feign/build.gradle

@@ -99,7 +99,7 @@ if(hasProperty('target') && target == 'android') {
 ext {
     swagger_annotations_version = "2.0.0"
     jackson_version = "2.10.1"
-    feign_version = "11.6"
+    feign_version = "13.5"
     feign_form_version = "3.8.0"
     junit_version = "4.12"
     oltu_version = "1.0.2"

samples/client/petstore/java/feign/pom.xml

@@ -248,7 +248,7 @@
     <maven.compiler.source>${java.version}</maven.compiler.source>
     <maven.compiler.target>${java.version}</maven.compiler.target>
     <swagger-core-version>2.0.0</swagger-core-version>
-    <feign-version>11.6</feign-version>
+    <feign-version>13.5</feign-version>
     <feign-form-version>3.8.0</feign-form-version>
     <jackson-version>2.15.2</jackson-version>
     <junit-version>4.13.1</junit-version>

samples/client/petstore/java/feign/src/main/java/io/swagger/client/auth/OAuth.java

@@ -4,6 +4,7 @@
 
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.Date;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.stream.Collectors;
@@ -95,7 +96,7 @@ public synchronized void updateAccessToken(RequestTemplate template) {
         try {
             accessTokenResponse = oauthClient.accessToken(tokenRequestBuilder.buildBodyMessage());
         } catch (Exception e) {
-            throw new RetryableException(400, e.getMessage(), template.request().httpMethod(), e, null, template.request());
+            throw new RetryableException(400, e.getMessage(), template.request().httpMethod(), e, (Date) null, template.request());
         }
         if (accessTokenResponse != null && accessTokenResponse.getAccessToken() != null) {
             setAccessToken(accessTokenResponse.getAccessToken(), accessTokenResponse.getExpiresIn());