[Java] Extract out a new helper method from okhttp clients

modules/swagger-codegen/src/main/resources/Java/libraries/okhttp-gson/ApiClient.mustache

@@ -1085,6 +1085,26 @@ public class ApiClient {
      * @throws ApiException If fail to serialize the request body object
      */
     public Call buildCall(String path, String method, List<Pair> queryParams, Object body, Map<String, String> headerParams, Map<String, Object> formParams, String[] authNames, ProgressRequestBody.ProgressRequestListener progressRequestListener) throws ApiException {
+        Request request = buildRequest(path, method, queryParams, body, headerParams, formParams, authNames, progressRequestListener);
+
+        return httpClient.newCall(request);
+    }
+
+    /**
+     * Build an HTTP request with the given options.
+     *
+     * @param path The sub-path of the HTTP URL
+     * @param method The request method, one of "GET", "HEAD", "OPTIONS", "POST", "PUT", "PATCH" and "DELETE"
+     * @param queryParams The query parameters
+     * @param body The request body object
+     * @param headerParams The header parameters
+     * @param formParams The form parameters
+     * @param authNames The authentications to apply
+     * @param progressRequestListener Progress request listener
+     * @return The HTTP request 
+     * @throws ApiException If fail to serialize the request body object
+     */
+    public Request buildRequest(String path, String method, List<Pair> queryParams, Object body, Map<String, String> headerParams, Map<String, Object> formParams, String[] authNames, ProgressRequestBody.ProgressRequestListener progressRequestListener) throws ApiException {
         updateParamsForAuth(authNames, queryParams, headerParams);
 
         final String url = buildUrl(path, queryParams);
@@ -1125,7 +1145,7 @@ public class ApiClient {
             request = reqBuilder.method(method, reqBody).build();
         }
 
-        return httpClient.newCall(request);
+        return request;
     }
 
     /**

samples/client/petstore-security-test/java/okhttp-gson/src/main/java/io/swagger/client/ApiClient.java

@@ -1091,6 +1091,26 @@ public <T> T handleResponse(Response response, Type returnType) throws ApiExcept
      * @throws ApiException If fail to serialize the request body object
      */
     public Call buildCall(String path, String method, List<Pair> queryParams, Object body, Map<String, String> headerParams, Map<String, Object> formParams, String[] authNames, ProgressRequestBody.ProgressRequestListener progressRequestListener) throws ApiException {
+        Request request = buildRequest(path, method, queryParams, body, headerParams, formParams, authNames, progressRequestListener);
+
+        return httpClient.newCall(request);
+    }
+
+    /**
+     * Build an HTTP request with the given options.
+     *
+     * @param path The sub-path of the HTTP URL
+     * @param method The request method, one of "GET", "HEAD", "OPTIONS", "POST", "PUT", "PATCH" and "DELETE"
+     * @param queryParams The query parameters
+     * @param body The request body object
+     * @param headerParams The header parameters
+     * @param formParams The form parameters
+     * @param authNames The authentications to apply
+     * @param progressRequestListener Progress request listener
+     * @return The HTTP request 
+     * @throws ApiException If fail to serialize the request body object
+     */
+    public Request buildRequest(String path, String method, List<Pair> queryParams, Object body, Map<String, String> headerParams, Map<String, Object> formParams, String[] authNames, ProgressRequestBody.ProgressRequestListener progressRequestListener) throws ApiException {
         updateParamsForAuth(authNames, queryParams, headerParams);
 
         final String url = buildUrl(path, queryParams);
@@ -1131,7 +1151,7 @@ public Call buildCall(String path, String method, List<Pair> queryParams, Object
             request = reqBuilder.method(method, reqBody).build();
         }
 
-        return httpClient.newCall(request);
+        return request;
     }
 
     /**

samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/ApiClient.java

@@ -1092,6 +1092,26 @@ public <T> T handleResponse(Response response, Type returnType) throws ApiExcept
      * @throws ApiException If fail to serialize the request body object
      */
     public Call buildCall(String path, String method, List<Pair> queryParams, Object body, Map<String, String> headerParams, Map<String, Object> formParams, String[] authNames, ProgressRequestBody.ProgressRequestListener progressRequestListener) throws ApiException {
+        Request request = buildRequest(path, method, queryParams, body, headerParams, formParams, authNames, progressRequestListener);
+
+        return httpClient.newCall(request);
+    }
+
+    /**
+     * Build an HTTP request with the given options.
+     *
+     * @param path The sub-path of the HTTP URL
+     * @param method The request method, one of "GET", "HEAD", "OPTIONS", "POST", "PUT", "PATCH" and "DELETE"
+     * @param queryParams The query parameters
+     * @param body The request body object
+     * @param headerParams The header parameters
+     * @param formParams The form parameters
+     * @param authNames The authentications to apply
+     * @param progressRequestListener Progress request listener
+     * @return The HTTP request 
+     * @throws ApiException If fail to serialize the request body object
+     */
+    public Request buildRequest(String path, String method, List<Pair> queryParams, Object body, Map<String, String> headerParams, Map<String, Object> formParams, String[] authNames, ProgressRequestBody.ProgressRequestListener progressRequestListener) throws ApiException {
         updateParamsForAuth(authNames, queryParams, headerParams);
 
         final String url = buildUrl(path, queryParams);
@@ -1132,7 +1152,7 @@ public Call buildCall(String path, String method, List<Pair> queryParams, Object
             request = reqBuilder.method(method, reqBody).build();
         }
 
-        return httpClient.newCall(request);
+        return request;
     }
 
     /**