diff --git a/modules/openapi-generator/src/main/resources/JavaVertXServer/pom.mustache b/modules/openapi-generator/src/main/resources/JavaVertXServer/pom.mustache
index 3fdedc85a2a7..4c76c2f62060 100644
--- a/modules/openapi-generator/src/main/resources/JavaVertXServer/pom.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaVertXServer/pom.mustache
@@ -13,7 +13,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <java.version>1.8</java.version>
         <junit.version>4.13.1</junit.version>
-        <vertx.version>3.4.1</vertx.version>
+        <vertx.version>4.2.4</vertx.version>
         <maven-compiler-plugin.version>3.8.1</maven-compiler-plugin.version>
         <vertx-swagger-router.version>{{vertxSwaggerRouterVersion}}</vertx-swagger-router.version>
         <maven-shade-plugin.version>2.3</maven-shade-plugin.version>
diff --git a/modules/openapi-generator/src/main/resources/JavaVertXWebServer/apiImpl.mustache b/modules/openapi-generator/src/main/resources/JavaVertXWebServer/apiImpl.mustache
index 341e68eb5771..c84106efecce 100644
--- a/modules/openapi-generator/src/main/resources/JavaVertXWebServer/apiImpl.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaVertXWebServer/apiImpl.mustache
@@ -7,7 +7,7 @@ import {{invokerPackage}}.ApiResponse;
 
 import io.vertx.core.Future;
 import io.vertx.core.json.JsonObject;
-import io.vertx.ext.web.handler.impl.HttpStatusException;
+import io.vertx.ext.web.handler.HttpException;
 
 import java.util.List;
 import java.util.Map;
@@ -18,7 +18,7 @@ public class {{classname}}Impl implements {{classname}} {
 {{#operations}}
 {{#operation}}
     public Future<ApiResponse<{{{returnType}}}>> {{operationId}}({{#allParams}}{{{dataType}}} {{paramName}}{{^-last}}, {{/-last}}{{/allParams}}) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
 {{/operation}}
diff --git a/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/PetApiImpl.java b/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/PetApiImpl.java
index f06dfd3ae29f..c3daaf53230e 100644
--- a/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/PetApiImpl.java
+++ b/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/PetApiImpl.java
@@ -8,7 +8,7 @@ import org.openapitools.vertxweb.server.ApiResponse;
 
 import io.vertx.core.Future;
 import io.vertx.core.json.JsonObject;
-import io.vertx.ext.web.handler.impl.HttpStatusException;
+import io.vertx.ext.web.handler.HttpException;
 
 import java.util.List;
 import java.util.Map;
@@ -17,35 +17,35 @@ import java.util.Map;
 
 public class PetApiImpl implements PetApi {
     public Future<ApiResponse<Pet>> addPet(Pet pet) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Void>> deletePet(Long petId, String apiKey) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<List<Pet>>> findPetsByStatus(List<String> status) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<List<Pet>>> findPetsByTags(List<String> tags) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Pet>> getPetById(Long petId) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Pet>> updatePet(Pet pet) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Void>> updatePetWithForm(Long petId, JsonObject formBody) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
-    public Future<ApiResponse<ModelApiResponse>> uploadFile(Long petId, FileUpload _file) {
-        return Future.failedFuture(new HttpStatusException(501));
+    public Future<ApiResponse<ModelApiResponse>> uploadFile(Long petId, FileUpload file) {
+        return Future.failedFuture(new HttpException(501));
     }
 
 }
diff --git a/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/StoreApiImpl.java b/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/StoreApiImpl.java
index d542d3be96c1..1bc8d437a05d 100644
--- a/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/StoreApiImpl.java
+++ b/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/StoreApiImpl.java
@@ -6,7 +6,7 @@ import org.openapitools.vertxweb.server.ApiResponse;
 
 import io.vertx.core.Future;
 import io.vertx.core.json.JsonObject;
-import io.vertx.ext.web.handler.impl.HttpStatusException;
+import io.vertx.ext.web.handler.HttpException;
 
 import java.util.List;
 import java.util.Map;
@@ -15,19 +15,19 @@ import java.util.Map;
 
 public class StoreApiImpl implements StoreApi {
     public Future<ApiResponse<Void>> deleteOrder(String orderId) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Map<String, Integer>>> getInventory() {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Order>> getOrderById(Long orderId) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Order>> placeOrder(Order order) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
 }
diff --git a/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/UserApiImpl.java b/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/UserApiImpl.java
index b2097db1dec0..48324ba8ee08 100644
--- a/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/UserApiImpl.java
+++ b/samples/server/petstore/java-vertx-web/src/main/java/org/openapitools/vertxweb/server/api/UserApiImpl.java
@@ -1,13 +1,12 @@
 package org.openapitools.vertxweb.server.api;
 
-import java.time.OffsetDateTime;
 import org.openapitools.vertxweb.server.model.User;
 
 import org.openapitools.vertxweb.server.ApiResponse;
 
 import io.vertx.core.Future;
 import io.vertx.core.json.JsonObject;
-import io.vertx.ext.web.handler.impl.HttpStatusException;
+import io.vertx.ext.web.handler.HttpException;
 
 import java.util.List;
 import java.util.Map;
@@ -16,35 +15,35 @@ import java.util.Map;
 
 public class UserApiImpl implements UserApi {
     public Future<ApiResponse<Void>> createUser(User user) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Void>> createUsersWithArrayInput(List<User> user) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Void>> createUsersWithListInput(List<User> user) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Void>> deleteUser(String username) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<User>> getUserByName(String username) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<String>> loginUser(String username, String password) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Void>> logoutUser() {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
     public Future<ApiResponse<Void>> updateUser(String username, User user) {
-        return Future.failedFuture(new HttpStatusException(501));
+        return Future.failedFuture(new HttpException(501));
     }
 
 }