fixes(java/restclient) Force usage of custom converter (#20112)

* fixes(java/restclient) Force usage of custom converter

Insert custom converter at the beginning of the 'RestClientBuilder' converter list so as not to use default 'MappingJackson2HttpMessageConverter' 

Close #20111

* update samples

---------

Co-authored-by: William Cheng <[email protected]>

Author: antechrestos

modules/openapi-generator/src/main/resources/Java/libraries/restclient/ApiClient.mustache

@@ -156,9 +156,9 @@ public class ApiClient{{#jsr310}} extends JavaTimeFormatter{{/jsr310}} {
 
         {{/withXml}}
         Consumer<List<HttpMessageConverter<?>>> messageConverters = converters -> {
-            converters.add(new MappingJackson2HttpMessageConverter(mapper));
+            converters.add(0, new MappingJackson2HttpMessageConverter(mapper));
             {{#withXml}}
-            converters.add(new MappingJackson2XmlHttpMessageConverter(xmlMapper));
+            converters.add(0, new MappingJackson2XmlHttpMessageConverter(xmlMapper));
             {{/withXml}}
         };
 
@@ -750,4 +750,4 @@ public class ApiClient{{#jsr310}} extends JavaTimeFormatter{{/jsr310}} {
 
         return collectionFormat.collectionToString(values);
     }
-}
+}

samples/client/echo_api/java/restclient/src/main/java/org/openapitools/client/ApiClient.java

@@ -141,7 +141,7 @@ protected void init() {
     */
     public static RestClient.Builder buildRestClientBuilder(ObjectMapper mapper) {
         Consumer<List<HttpMessageConverter<?>>> messageConverters = converters -> {
-            converters.add(new MappingJackson2HttpMessageConverter(mapper));
+            converters.add(0, new MappingJackson2HttpMessageConverter(mapper));
         };
 
         return RestClient.builder().messageConverters(messageConverters);
@@ -716,4 +716,4 @@ public String collectionPathParameterToString(CollectionFormat collectionFormat,
 
         return collectionFormat.collectionToString(values);
     }
-}
+}

samples/client/others/java/restclient-useAbstractionForFiles/src/main/java/org/openapitools/client/ApiClient.java

@@ -139,7 +139,7 @@ protected void init() {
     */
     public static RestClient.Builder buildRestClientBuilder(ObjectMapper mapper) {
         Consumer<List<HttpMessageConverter<?>>> messageConverters = converters -> {
-            converters.add(new MappingJackson2HttpMessageConverter(mapper));
+            converters.add(0, new MappingJackson2HttpMessageConverter(mapper));
         };
 
         return RestClient.builder().messageConverters(messageConverters);
@@ -714,4 +714,4 @@ public String collectionPathParameterToString(CollectionFormat collectionFormat,
 
         return collectionFormat.collectionToString(values);
     }
-}
+}

samples/client/petstore/java/restclient-nullable-arrays/src/main/java/org/openapitools/client/ApiClient.java

@@ -139,7 +139,7 @@ protected void init() {
     */
     public static RestClient.Builder buildRestClientBuilder(ObjectMapper mapper) {
         Consumer<List<HttpMessageConverter<?>>> messageConverters = converters -> {
-            converters.add(new MappingJackson2HttpMessageConverter(mapper));
+            converters.add(0, new MappingJackson2HttpMessageConverter(mapper));
         };
 
         return RestClient.builder().messageConverters(messageConverters);
@@ -714,4 +714,4 @@ public String collectionPathParameterToString(CollectionFormat collectionFormat,
 
         return collectionFormat.collectionToString(values);
     }
-}
+}

samples/client/petstore/java/restclient-swagger2/src/main/java/org/openapitools/client/ApiClient.java

@@ -145,7 +145,7 @@ protected void init() {
     */
     public static RestClient.Builder buildRestClientBuilder(ObjectMapper mapper) {
         Consumer<List<HttpMessageConverter<?>>> messageConverters = converters -> {
-            converters.add(new MappingJackson2HttpMessageConverter(mapper));
+            converters.add(0, new MappingJackson2HttpMessageConverter(mapper));
         };
 
         return RestClient.builder().messageConverters(messageConverters);
@@ -734,4 +734,4 @@ public String collectionPathParameterToString(CollectionFormat collectionFormat,
 
         return collectionFormat.collectionToString(values);
     }
-}
+}

samples/client/petstore/java/restclient-useSingleRequestParameter/src/main/java/org/openapitools/client/ApiClient.java

@@ -145,7 +145,7 @@ protected void init() {
     */
     public static RestClient.Builder buildRestClientBuilder(ObjectMapper mapper) {
         Consumer<List<HttpMessageConverter<?>>> messageConverters = converters -> {
-            converters.add(new MappingJackson2HttpMessageConverter(mapper));
+            converters.add(0, new MappingJackson2HttpMessageConverter(mapper));
         };
 
         return RestClient.builder().messageConverters(messageConverters);
@@ -734,4 +734,4 @@ public String collectionPathParameterToString(CollectionFormat collectionFormat,
 
         return collectionFormat.collectionToString(values);
     }
-}
+}

samples/client/petstore/java/restclient/src/main/java/org/openapitools/client/ApiClient.java

@@ -145,7 +145,7 @@ protected void init() {
     */
     public static RestClient.Builder buildRestClientBuilder(ObjectMapper mapper) {
         Consumer<List<HttpMessageConverter<?>>> messageConverters = converters -> {
-            converters.add(new MappingJackson2HttpMessageConverter(mapper));
+            converters.add(0, new MappingJackson2HttpMessageConverter(mapper));
         };
 
         return RestClient.builder().messageConverters(messageConverters);
@@ -734,4 +734,4 @@ public String collectionPathParameterToString(CollectionFormat collectionFormat,
 
         return collectionFormat.collectionToString(values);
     }
-}
+}