build(deps): bump java from 17 to 21, gradle-wrapper from 7.4.1 to 8.…

…6, spring-boot from 2.7.4 to 3.2.3

.sdkmanrc

@@ -1,4 +1,4 @@
 # Enable auto-env through the sdkman_auto_env config
 # Add key=value pairs of SDKs to use below
-java=17.0.4-tem
-gradle=7.6.3
+java=21.0.2-tem
+gradle=8.6

README.md

@@ -29,13 +29,13 @@ an [Open Source License](https://www.jetbrains.com/community/opensource/) for th
 
 The build is tested with the following versions:
 
-- [Java 17.0.4](https://adoptopenjdk.net/)
-- [Gradle 7.6.3](https://gradle.org/)
+- [Java 21.0.2](https://adoptopenjdk.net/)
+- [Gradle](https://gradle.org/) is configured by the [gradle-wrapper.properties](gradle/wrapper/gradle-wrapper.properties)
 
 ### Build the Solution and Run the Tests
 
 ```sh
-./gradlew clean build test
+./gradlew clean build test --warning-mode all
 ```
 
 ## Before Creating a Pull Request

build.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id 'org.springframework.boot' version '2.7.4'
+    id 'org.springframework.boot' version '3.2.3'
     id 'io.spring.dependency-management' version '1.1.0'
     id 'java'
     id 'jacoco'
@@ -8,7 +8,10 @@ plugins {
 
 group = 'systems.boos'
 version = '0.0.1-SNAPSHOT'
-sourceCompatibility = '17'
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_21
+}
 
 repositories {
     mavenCentral()

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

src/main/java/systems/boos/traindelays/TrainDelaysController.java

@@ -6,7 +6,7 @@
 import org.springframework.web.bind.annotation.RestController;
 import systems.boos.traindelays.model.Timetable;
 
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpServletResponse;
 import java.time.Instant;
 import java.time.ZoneOffset;
 import java.util.Optional;