Update to JDK 25 and Kotlin 2.3.0

Author: raharrison

.github/workflows/build.yml

@@ -14,7 +14,7 @@ jobs:
       contents: read
     strategy:
       matrix:
-        java: [ '21', '24' ]
+        java: [ '25' ]
 
     steps:
       - uses: actions/checkout@v4

README.md

@@ -5,7 +5,7 @@
 
 ## Starter project to create a simple RESTful web service in Kotlin
 
-**Updated for Kotlin 2.2.20 and Ktor 3.3.0**
+**Updated for Kotlin 2.3.0 and Ktor 3.3.3**
 
 Companion article: <https://ryanharrison.co.uk/2018/04/14/kotlin-ktor-exposed-starter.html>
 

build.gradle.kts

@@ -28,7 +28,7 @@ dependencies {
 }
 
 kotlin {
-    jvmToolchain(21)
+    jvmToolchain(25)
     compilerOptions {
         allWarningsAsErrors.set(true)
     }

gradle/libs.versions.toml

@@ -1,15 +1,15 @@
 [versions]
-kotlin = "2.2.20"
-ktor = "3.3.0"
-kover = "0.9.1"
+kotlin = "2.3.0"
+ktor = "3.3.3"
+kover = "0.9.4"
 exposed = "0.61.0"
-h2 = "2.3.232"
-hikaricp = "6.2.1"
-flyway = "11.9.1"
-logback = "1.5.18"
-junit = "5.13.4"
+h2 = "2.4.240"
+hikaricp = "6.3.3"
+flyway = "11.19.0"
+logback = "1.5.22"
+junit = "6.0.1"
 assertj = "3.27.3"
-restAssured = "5.5.6"
+restAssured = "6.0.0"
 
 [libraries]
 ktor-server-core = { module = "io.ktor:ktor-server-core", version.ref = "ktor" }

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.0-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists