Upgrad to Spring Boot 4.0.0-RC2

build.gradle

@@ -1,7 +1,7 @@
 plugins {
   id 'java'
   id 'checkstyle'
-  id 'org.springframework.boot' version '4.0.0-M3'
+  id 'org.springframework.boot' version '4.0.0-RC2'
   id 'io.spring.dependency-management' version '1.1.7'
   id 'org.graalvm.buildtools.native' version '0.11.1'
   id 'org.cyclonedx.bom' version '3.0.0'
@@ -37,7 +37,7 @@ dependencies {
   implementation 'org.springframework.boot:spring-boot-starter-cache'
   implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
   implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
-  implementation 'org.springframework.boot:spring-boot-starter-web'
+  implementation 'org.springframework.boot:spring-boot-starter-webmvc'
   implementation 'org.springframework.boot:spring-boot-starter-validation'
   implementation 'javax.cache:cache-api'
   implementation 'jakarta.xml.bind:jakarta.xml.bind-api'
@@ -50,12 +50,13 @@ dependencies {
   runtimeOnly 'com.mysql:mysql-connector-j'
   runtimeOnly 'org.postgresql:postgresql'
   developmentOnly 'org.springframework.boot:spring-boot-devtools'
-  testImplementation 'org.springframework.boot:spring-boot-starter-test'
+  testImplementation 'org.springframework.boot:spring-boot-starter-data-jpa-test'
-  testImplementation 'org.springframework.boot:spring-boot-starter-restclient'
+  testImplementation 'org.springframework.boot:spring-boot-starter-restclient-test'
+  testImplementation 'org.springframework.boot:spring-boot-starter-webmvc-test'
   testImplementation 'org.springframework.boot:spring-boot-testcontainers'
   testImplementation 'org.springframework.boot:spring-boot-docker-compose'
-  testImplementation 'org.testcontainers:junit-jupiter'
+  testImplementation 'org.testcontainers:testcontainers-junit-jupiter'
-  testImplementation 'org.testcontainers:mysql'
+  testImplementation 'org.testcontainers:testcontainers-mysql'
   checkstyle "io.spring.javaformat:spring-javaformat-checkstyle:${springJavaformatCheckstyleVersion}"
   checkstyle "com.puppycrawl.tools:checkstyle:${checkstyleVersion}"
   errorprone "com.google.errorprone:error_prone_core:${errorProneVersion}"

pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>4.0.0-M3</version>
+    <version>4.0.0-RC2</version>
     <relativePath></relativePath>
   </parent>
 
@@ -57,7 +57,7 @@
     </dependency>
     <dependency>
       <groupId>org.springframework.boot</groupId>
-      <artifactId>spring-boot-starter-web</artifactId>
+      <artifactId>spring-boot-starter-webmvc</artifactId>
     </dependency>
     <dependency>
       <groupId>org.springframework.boot</groupId>
@@ -67,16 +67,6 @@
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-thymeleaf</artifactId>
     </dependency>
-    <dependency>
-      <groupId>org.springframework.boot</groupId>
-      <artifactId>spring-boot-starter-test</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.springframework.boot</groupId>
-      <artifactId>spring-boot-starter-restclient</artifactId>
-      <scope>test</scope>
-    </dependency>
 
     <!-- Databases - Uses H2 by default -->
     <dependency>
@@ -125,6 +115,22 @@
     <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-devtools</artifactId>
+      <optional>true</optional>
+    </dependency>
+
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-data-jpa-test</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-restclient-test</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-webmvc-test</artifactId>
       <scope>test</scope>
     </dependency>
     <dependency>
@@ -139,12 +145,12 @@
     </dependency>
     <dependency>
       <groupId>org.testcontainers</groupId>
-      <artifactId>junit-jupiter</artifactId>
+      <artifactId>testcontainers-junit-jupiter</artifactId>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.testcontainers</groupId>
-      <artifactId>mysql</artifactId>
+      <artifactId>testcontainers-mysql</artifactId>
       <scope>test</scope>
     </dependency>
 

src/test/java/org/springframework/samples/petclinic/MySqlIntegrationTests.java

@@ -24,8 +24,8 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.restclient.RestTemplateBuilder;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.boot.test.web.server.LocalServerPort;
 import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
-import org.springframework.boot.web.server.test.LocalServerPort;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.RequestEntity;
 import org.springframework.http.ResponseEntity;

src/test/java/org/springframework/samples/petclinic/PetClinicIntegrationTests.java

@@ -24,7 +24,7 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.restclient.RestTemplateBuilder;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
-import org.springframework.boot.web.server.test.LocalServerPort;
+import org.springframework.boot.test.web.server.LocalServerPort;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.RequestEntity;
 import org.springframework.http.ResponseEntity;

src/test/java/org/springframework/samples/petclinic/PostgresIntegrationTests.java

@@ -35,7 +35,7 @@ import org.springframework.boot.context.event.ApplicationPreparedEvent;
 import org.springframework.boot.restclient.RestTemplateBuilder;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
-import org.springframework.boot.web.server.test.LocalServerPort;
+import org.springframework.boot.test.web.server.LocalServerPort;
 import org.springframework.context.ApplicationListener;
 import org.springframework.core.env.ConfigurableEnvironment;
 import org.springframework.core.env.EnumerablePropertySource;

src/test/java/org/springframework/samples/petclinic/owner/OwnerControllerTests.java

@@ -20,7 +20,7 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledInNativeImage;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.webmvc.test.autoconfigure.WebMvcTest;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageImpl;
 import org.springframework.data.domain.Pageable;

src/test/java/org/springframework/samples/petclinic/owner/PetControllerTests.java

@@ -21,7 +21,7 @@ import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledInNativeImage;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.webmvc.test.autoconfigure.WebMvcTest;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.FilterType;
 import org.springframework.test.context.aot.DisabledInAotMode;

src/test/java/org/springframework/samples/petclinic/owner/VisitControllerTests.java

@@ -27,7 +27,7 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledInNativeImage;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.webmvc.test.autoconfigure.WebMvcTest;
 import org.springframework.test.context.aot.DisabledInAotMode;
 import org.springframework.test.context.bean.override.mockito.MockitoBean;
 import org.springframework.test.web.servlet.MockMvc;

src/test/java/org/springframework/samples/petclinic/service/ClinicServiceTests.java

@@ -24,9 +24,9 @@ import java.util.Optional;
 
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
+import org.springframework.boot.data.jpa.test.autoconfigure.DataJpaTest;
-import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase.Replace;
+import org.springframework.boot.jdbc.test.autoconfigure.AutoConfigureTestDatabase;
-import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.boot.jdbc.test.autoconfigure.AutoConfigureTestDatabase.Replace;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.samples.petclinic.owner.Owner;

src/test/java/org/springframework/samples/petclinic/system/CrashControllerIntegrationTests.java

@@ -29,8 +29,9 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.hibernate.autoconfigure.HibernateJpaAutoConfiguration;
 import org.springframework.boot.jdbc.autoconfigure.DataSourceAutoConfiguration;
 import org.springframework.boot.jdbc.autoconfigure.DataSourceTransactionManagerAutoConfiguration;
+import org.springframework.boot.resttestclient.TestRestTemplate;
+import org.springframework.boot.resttestclient.autoconfigure.AutoConfigureTestRestTemplate;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.boot.web.server.test.client.TestRestTemplate;
 import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
@@ -47,7 +48,8 @@ import org.springframework.http.ResponseEntity;
  */
 // NOT Waiting https://github.com/spring-projects/spring-boot/issues/5574
 @SpringBootTest(webEnvironment = RANDOM_PORT,
-		properties = { "server.error.include-message=ALWAYS", "management.endpoints.enabled-by-default=false" })
+		properties = { "server.error.include-message=ALWAYS", "management.endpoints.access.default=none" })
+@AutoConfigureTestRestTemplate
 class CrashControllerIntegrationTests {
 
 	@Value(value = "${local.server.port}")

src/test/java/org/springframework/samples/petclinic/vet/VetControllerTests.java

@@ -21,7 +21,7 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledInNativeImage;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.webmvc.test.autoconfigure.WebMvcTest;
 import org.springframework.data.domain.PageImpl;
 import org.springframework.data.domain.Pageable;
 import org.springframework.http.MediaType;