[JAVA-37275] Upgrade main Kotlin version (#1002)

Co-authored-by: timis1 <[email protected]>

Author: timis1

kotlin-kotest/kotest/pom.xml

@@ -124,7 +124,7 @@
     </build>
 
     <properties>
-        <kotlin.version>1.9.24</kotlin.version>
+        <kotlin.version>2.0.0</kotlin.version>
         <kotest.version>5.9.0</kotest.version>
         <kotest-extensions-testcontainers.version>2.0.1</kotest-extensions-testcontainers.version>
         <jackson.version>2.15.4</jackson.version>

pom.xml

@@ -754,7 +754,7 @@
     </profiles>
 
     <properties>
-        <kotlin.version>1.9.24</kotlin.version>
+        <kotlin.version>2.0.0</kotlin.version>
         <kotlinx.version>1.7.1</kotlinx.version>
         <ktlint-cli.version>1.0.1</ktlint-cli.version>
 
@@ -793,7 +793,7 @@
         <gib.failOnError>false</gib.failOnError>
         <gib.enabled>false</gib.enabled>
 
-        <java.version>11</java.version>
+        <java.version>17</java.version>
 
         <serialization.version>1.4.1</serialization.version>
         <jackson.version>2.15.0</jackson.version>

spring-mvc-kotlin/src/test/kotlin/com/baeldung/kotlin/jpa/HibernateKotlinIntegrationTest.kt

@@ -1,9 +1,10 @@
 package com.baeldung.kotlin.jpa
 
 import org.hibernate.Hibernate
+import org.hibernate.Session
+import org.hibernate.Transaction
 import org.hibernate.cfg.Configuration
 import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase
-import org.hibernate.testing.transaction.TransactionUtil.doInHibernate
 import org.junit.Assert.assertTrue
 import org.junit.Test
 import org.slf4j.LoggerFactory
@@ -32,9 +33,26 @@ class HibernateKotlinIntegrationTest : BaseCoreFunctionalTestCase() {
         configuration.properties = properties
     }
 
+    fun doInHibernate(action: (Session) -> Unit) {
+        val sessionFactory = sessionFactory()
+        val session = sessionFactory.openSession()
+        val transaction: Transaction = session.beginTransaction()
+
+        try {
+            action(session)
+            transaction.commit()
+        } catch (e: Exception) {
+            transaction.rollback()
+            throw e
+        } finally {
+            session.close()
+        }
+    }
+
+
     @Test
     fun givenPersonWithFullData_whenSaved_thenFound() {
-        doInHibernate(({ this.sessionFactory() })) { session ->
+        doInHibernate { session ->
             val personToSave = Person(
                 "John",
                 "[email protected]",
@@ -49,7 +67,7 @@ class HibernateKotlinIntegrationTest : BaseCoreFunctionalTestCase() {
 
     @Test
     fun givenPerson_whenSaved_thenFound() {
-        doInHibernate(({ this.sessionFactory() })) { session ->
+        doInHibernate { session ->
             val personToSave = Person( "John")
             session.persist(personToSave)
             val personFound = session.find(Person::class.java, personToSave.id)
@@ -61,7 +79,7 @@ class HibernateKotlinIntegrationTest : BaseCoreFunctionalTestCase() {
 
     @Test
     fun givenPersonWithNullFields_whenSaved_thenFound() {
-        doInHibernate(({ this.sessionFactory() })) { session ->
+        doInHibernate { session ->
             val personToSave = Person("John", null, null)
             session.persist(personToSave)
             val personFound = session.find(Person::class.java, personToSave.id)
@@ -73,7 +91,7 @@ class HibernateKotlinIntegrationTest : BaseCoreFunctionalTestCase() {
 
     @Test
     fun givenAddressWithDefaultEquals_whenAddedToSet_thenNotFound() {
-        doInHibernate({ sessionFactory() }) { session ->
+        doInHibernate{ session ->
             val addresses = mutableSetOf<Address>()
             val address = Address(name = "Berlin", phoneNumbers = listOf(PhoneNumber( "42")))
             addresses.add(address)
@@ -86,7 +104,7 @@ class HibernateKotlinIntegrationTest : BaseCoreFunctionalTestCase() {
 
     @Test
     fun givenAddress_whenLogging_thenFetchesLazyAssociations() {
-        doInHibernate({ this.sessionFactory() }) { session ->
+        doInHibernate{ session ->
             val addressToSave = Address(name = "Berlin", phoneNumbers = listOf(PhoneNumber("42")))
             session.persist(addressToSave)
             session.clear()