Merge remote-tracking branch 'origin/5.4.x' into 6.0.x

samples/server/petstore/kotlin-springboot/.openapi-generator/FILES

@@ -5,13 +5,13 @@ settings.gradle
 src/main/kotlin/org/openapitools/Application.kt
 src/main/kotlin/org/openapitools/api/ApiUtil.kt
 src/main/kotlin/org/openapitools/api/Exceptions.kt
-src/main/kotlin/org/openapitools/api/PetApi.kt
+src/main/kotlin/org/openapitools/api/PetApiController.kt
 src/main/kotlin/org/openapitools/api/PetApiService.kt
 src/main/kotlin/org/openapitools/api/PetApiServiceImpl.kt
-src/main/kotlin/org/openapitools/api/StoreApi.kt
+src/main/kotlin/org/openapitools/api/StoreApiController.kt
 src/main/kotlin/org/openapitools/api/StoreApiService.kt
 src/main/kotlin/org/openapitools/api/StoreApiServiceImpl.kt
-src/main/kotlin/org/openapitools/api/UserApi.kt
+src/main/kotlin/org/openapitools/api/UserApiController.kt
 src/main/kotlin/org/openapitools/api/UserApiService.kt
 src/main/kotlin/org/openapitools/api/UserApiServiceImpl.kt
 src/main/kotlin/org/openapitools/model/Category.kt

samples/server/petstore/kotlin-springboot/build.gradle.kts

@@ -2,8 +2,7 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 buildscript {
     repositories {
-        jcenter()
-        maven { url = uri("https://repo1.maven.org/maven2") }
+        mavenCentral()
     }
     dependencies {
         classpath("org.springframework.boot:spring-boot-gradle-plugin:2.2.0.M3")
@@ -14,8 +13,7 @@ group = "org.openapitools"
 version = "1.0.0"
 
 repositories {
-    jcenter()
-    maven { url = uri("https://repo1.maven.org/maven2") }
+    mavenCentral()
 }
 
 tasks.withType<KotlinCompile> {