updating to spring boot 2.0.3 and kotlin 1.12.50

Author: Jony Santos

pom.xml

@@ -14,7 +14,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>1.5.3.RELEASE</version>
+        <version>2.0.3.RELEASE</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
 
@@ -23,7 +23,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>1.8</java.version>
-        <kotlin.version>1.1.2-4</kotlin.version>
+        <kotlin.version>1.2.50</kotlin.version>
     </properties>
 
     <dependencies>

src/main/kotlin/br/com/jonyfs/springbootkotlinapi/LoadData.kt

@@ -108,7 +108,7 @@ class LoadData {
         userAdmin.password = "XPTO"
         userAdmin.roles = (listOf(roleAdmin))
 
-        userRepository.save(listOf(user1, user2, user3, user4, userAdmin))
+        userRepository.saveAll(listOf(user1, user2, user3, user4, userAdmin))
     }
 
 }

src/main/kotlin/br/com/jonyfs/springbootkotlinapi/config/AuditConfig.kt

@@ -4,6 +4,7 @@ package br.com.jonyfs.springbootkotlinapi.config
  * Created by jony on 28/05/17.
  */
 import br.com.jonyfs.springbootkotlinapi.user.User
+import java.util.Optional
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
 import org.springframework.data.domain.AuditorAware
@@ -31,14 +32,19 @@ class AuditingConfig {
 
     class SecurityAuditor : AuditorAware<User> {
 
-        override fun getCurrentAuditor(): User? {
+        override fun getCurrentAuditor(): Optional<User>? {
             val auth = SecurityContextHolder.getContext().authentication
-            if (auth != null) {
+            if (auth == null) {
+                return Optional.empty()
+            } else {
                 if (auth.details is User) {
-                    return auth.details as User
+                    return Optional.of(auth.details as User)
+                }
+                else{
+                    return Optional.empty()
                 }
             }
-            return null
+
         }
     }