Upgrade to Spring Boot 4.0.1 with springdoc-openapi 3.0.1

README.md

@@ -79,13 +79,13 @@ DB_USERNAME=your-username
 DB_PASSWORD=your-password
 ```
 
-The `application.properties` file uses these environment variables with modern Spring Boot 3.5+ properties:
+The `application.properties` file uses these environment variables with modern Spring Boot 4.0+ properties:
 
 ```properties
 # Server configuration
 server.forward-headers-strategy=framework
 
-# Modern Couchbase configuration (Spring Boot 3.5+)
+# Modern Couchbase configuration (Spring Boot 4.0+)
 spring.couchbase.connection-string=${DB_CONN_STR}
 spring.couchbase.username=${DB_USERNAME}
 spring.couchbase.password=${DB_PASSWORD}
@@ -178,7 +178,7 @@ public class CouchbaseConfiguration extends AbstractCouchbaseConfiguration {
 
 > _from config/CouchbaseConfiguration.java_
 
-This configuration uses modern Spring Boot 3.5+ properties and automatically loads environment variables from `.env` files for local development. The configuration assumes you have either a locally running Couchbase server or a Couchbase Capella cluster.
+This configuration uses modern Spring Boot 4.0+ properties and automatically loads environment variables from `.env` files for local development. The configuration assumes you have either a locally running Couchbase server or a Couchbase Capella cluster.
 
 Applications deployed to production or staging environments should use less privileged credentials created using [Role-Based Access Control](https://docs.couchbase.com/go-sdk/current/concept-docs/rbac.html).
 Please refer to [Managing Connections using the Java SDK with Couchbase Server](https://docs.couchbase.com/java-sdk/current/howtos/managing-connections.html) for more information on Capella and local cluster connections.

build.gradle

@@ -1,5 +1,5 @@
 plugins {
-	id 'org.springframework.boot' version '3.5.7'
+	id 'org.springframework.boot' version '4.0.1'
 	id 'io.spring.dependency-management' version '1.1.7'
 	id 'java'
 }
@@ -35,11 +35,13 @@ dependencies {
 	testCompileOnly 'org.projectlombok:lombok:'
 	testAnnotationProcessor 'org.projectlombok:lombok'
 
-	// swagger 3 springdoc openapi 2
-	implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.8.14'
+	// swagger 3 springdoc openapi 3 for Spring Boot 4
+	implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:3.0.1'
 
 
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testImplementation 'org.springframework.boot:spring-boot-starter-webmvc-test'
+	testImplementation 'org.springframework.boot:spring-boot-starter-restclient'
 }
 
 tasks.named('test') {

src/main/java/org/couchbase/quickstart/springdata/Application.java

@@ -7,7 +7,6 @@
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
 import org.springframework.context.annotation.Bean;
 import org.springframework.web.filter.ForwardedHeaderFilter;
 
@@ -21,7 +20,7 @@
  **/
 
 @Slf4j
-@SpringBootApplication(exclude = SecurityAutoConfiguration.class, proxyBeanMethods = false)
+@SpringBootApplication(proxyBeanMethods = false)
 @OpenAPIDefinition(info = @Info(title = TITLE, version = VERSION, description = DESCRIPTION))
 public class Application implements CommandLineRunner {
 

src/main/java/org/couchbase/quickstart/springdata/models/RestResponsePage.java

@@ -7,18 +7,17 @@
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import com.fasterxml.jackson.databind.JsonNode;
 
 public class RestResponsePage<T> extends PageImpl<T> {
     @JsonCreator(mode = JsonCreator.Mode.PROPERTIES)
     public RestResponsePage(@JsonProperty("content") List<T> content,
             @JsonProperty("number") int number,
             @JsonProperty("size") int size,
             @JsonProperty("totalElements") Long totalElements,
-            @JsonProperty("pageable") JsonNode pageable,
+            @JsonProperty("pageable") Object pageable,
             @JsonProperty("last") boolean last,
             @JsonProperty("totalPages") int totalPages,
-            @JsonProperty("sort") JsonNode sort,
+            @JsonProperty("sort") Object sort,
             @JsonProperty("first") boolean first,
             @JsonProperty("numberOfElements") int numberOfElements) {
 

src/main/java/org/couchbase/quickstart/springdata/models/RestResponseSlice.java

@@ -8,24 +8,23 @@
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import com.fasterxml.jackson.databind.JsonNode;
 
 @JsonIgnoreProperties(ignoreUnknown = true)
 public class RestResponseSlice<T> extends SliceImpl<T> {
     @JsonCreator(mode = JsonCreator.Mode.PROPERTIES)
     public RestResponseSlice(@JsonProperty("content") List<T> content,
             @JsonProperty("number") int number,
             @JsonProperty("size") int size,
-            @JsonProperty("pageable") JsonNode pageable,
+            @JsonProperty("pageable") Object pageable,
             @JsonProperty("last") boolean last,
-            @JsonProperty("sort") JsonNode sort,
+            @JsonProperty("sort") Object sort,
             @JsonProperty("first") boolean first,
             @JsonProperty("numberOfElements") int numberOfElements,
-            @JsonProperty("hasNext") boolean hasNext) {
+            @JsonProperty("hasNext") Boolean hasNext) {
 
         // Calculate hasNext from the available information
         // For Slice, hasNext is typically determined by whether we have more content
-        super(content, PageRequest.of(number, size), hasNext);
+        super(content, PageRequest.of(number, size), hasNext != null ? hasNext : !last);
     }
 
 }

src/main/resources/application.properties

@@ -1,7 +1,7 @@
 # Server configuration
 server.forward-headers-strategy=framework
 
-# Modern Couchbase configuration (Spring Boot 3.5+)
+# Modern Couchbase configuration (Spring Boot 4.0+)
 spring.couchbase.connection-string=${DB_CONN_STR}
 spring.couchbase.username=${DB_USERNAME}
 spring.couchbase.password=${DB_PASSWORD}
@@ -13,3 +13,7 @@ spring.couchbase.env.timeouts.connect=10000ms
 
 # Spring MVC configuration
 spring.mvc.pathmatch.matching-strategy=ANT_PATH_MATCHER
+
+# springdoc-openapi 3.x - enable API docs (disabled by default in 3.x)
+springdoc.api-docs.enabled=true
+springdoc.swagger-ui.enabled=true

src/test/java/org/couchbase/quickstart/springdata/controllers/AirlineIntegrationTest.java

@@ -10,8 +10,9 @@
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.resttestclient.TestRestTemplate;
+import org.springframework.boot.resttestclient.autoconfigure.AutoConfigureTestRestTemplate;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.boot.test.web.client.TestRestTemplate;
 import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.dao.DataRetrievalFailureException;
 import org.springframework.http.HttpMethod;
@@ -25,6 +26,7 @@
 
 @Slf4j
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@AutoConfigureTestRestTemplate
 class AirlineIntegrationTest {
 
         @Value("${local.server.port}")

src/test/java/org/couchbase/quickstart/springdata/controllers/AirportIntegrationTest.java

@@ -12,8 +12,9 @@
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.resttestclient.TestRestTemplate;
+import org.springframework.boot.resttestclient.autoconfigure.AutoConfigureTestRestTemplate;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.boot.test.web.client.TestRestTemplate;
 import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.dao.DataRetrievalFailureException;
 import org.springframework.http.HttpMethod;
@@ -27,6 +28,7 @@
 
 @Slf4j
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@AutoConfigureTestRestTemplate
 class AirportIntegrationTest {
 
         @Value("${local.server.port}")

src/test/java/org/couchbase/quickstart/springdata/controllers/RouteIntegrationTest.java

@@ -12,8 +12,9 @@
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.resttestclient.TestRestTemplate;
+import org.springframework.boot.resttestclient.autoconfigure.AutoConfigureTestRestTemplate;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.boot.test.web.client.TestRestTemplate;
 import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.dao.DataRetrievalFailureException;
 import org.springframework.http.HttpMethod;
@@ -27,6 +28,7 @@
 
 @Slf4j
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@AutoConfigureTestRestTemplate
 class RouteIntegrationTest {
 
         @Value("${local.server.port}")