[kotlin-server] Bump Kotlin/Gradle versions and improve CI triggers/config (#20061)

* [kotlin-server] Bump Kotlin versions to latest

* Run tests on more samples

* Fix typo in workflow definitions

* Update samples

* Bump Gradle to 7.6.4

* Some further tweaks

* Bump Gradle versions

* Fix Gradle version syntax

Author: dennisameling

.github/workflows/samples-kotlin-server-jdk17.yaml

@@ -2,26 +2,28 @@ name: Samples Kotlin server (jdk17)
 
 on:
   push:
-    branches:
+    paths:
       - 'samples/server/petstore/kotlin-springboot-3*/**'
-      - 'samples/server/petstore/kotlin-server/javalin/**'
-      - 'samples/server/petstore/kotlin-server/javalin-6/**'
+      - 'samples/server/petstore/kotlin-server/**'
+      - 'samples/server/petstore/kotlin-server-modelMutable/**'
+      - 'samples/server/petstore/kotlin-springboot-*/**'
       # comment out due to gradle build failure
       # - samples/server/petstore/kotlin-spring-default/**
   pull_request:
     paths:
       - 'samples/server/petstore/kotlin-springboot-3*/**'
-      - 'samples/server/petstore/kotlin-server/javalin/**'
-      - 'samples/server/petstore/kotlin-server/javalin-6/**'
+      - 'samples/server/petstore/kotlin-server/**'
+      - 'samples/server/petstore/kotlin-server-modelMutable/**'
+      - 'samples/server/petstore/kotlin-springboot-*/**'
       # comment out due to gradle build failure
       # - samples/server/petstore/kotlin-spring-default/**
 
 env:
-  GRADLE_VERSION: 7.4
+  GRADLE_VERSION: '8.10'
 
 jobs:
   build:
-    name: Build Kotlin server
+    name: Build Kotlin server (jdk17)
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -31,8 +33,11 @@ jobs:
           - samples/server/petstore/kotlin-springboot-3
           - samples/server/petstore/kotlin-springboot-delegate-nodefaults
           - samples/server/petstore/kotlin-springboot-request-cookie
+          - samples/server/petstore/kotlin-server/jaxrs-spec
+          - samples/server/petstore/kotlin-server/jaxrs-spec-mutiny
           - samples/server/petstore/kotlin-server/javalin
           - samples/server/petstore/kotlin-server/javalin-6
+          - samples/server/petstore/kotlin-server/ktor
           # comment out due to gradle build failure
           # - samples/server/petstore/kotlin-spring-default/
     steps:

.github/workflows/samples-kotlin-server-jdk21.yaml

@@ -2,24 +2,25 @@ name: Samples Kotlin server (jdk21)
 
 on:
   push:
-    branches:
-      - 'samples/server/petstore/kotlin-server/javalin-6/**'
+    paths:
+      - 'samples/server/petstore/kotlin-server/**'
   pull_request:
     paths:
-      - 'samples/server/petstore/kotlin-server/javalin-6/**'
+      - 'samples/server/petstore/kotlin-server/**'
 
 env:
-  GRADLE_VERSION: 8.8
+  GRADLE_VERSION: '8.10'
 
 jobs:
   build:
-    name: Build Kotlin server
+    name: Build Kotlin server (jdk21)
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
         sample:
           - samples/server/petstore/kotlin-server/javalin-6
+          - samples/server/petstore/kotlin-server/ktor
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-java@v4

.github/workflows/samples-kotlin-server.yaml

@@ -1,8 +1,8 @@
-name: Samples Kotlin server
+name: Samples Kotlin server (jdk8)
 
 on:
   push:
-    branches:
+    paths:
       - samples/server/others/kotlin-server/jaxrs-spec/**
       - 'samples/server/petstore/kotlin*/**'
       - 'samples/server/others/kotlin-server/jaxrs-spec-array-response/**'
@@ -21,7 +21,7 @@ env:
 
 jobs:
   build:
-    name: Build Kotlin server
+    name: Build Kotlin server (jdk8)
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false

modules/openapi-generator/src/main/resources/kotlin-server/libraries/javalin5/build.gradle.kts.mustache

@@ -1,7 +1,7 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-    kotlin("jvm") version "1.9.21"
+    kotlin("jvm") version "1.9.25"
 }
 
 group = "{{groupId}}"

modules/openapi-generator/src/main/resources/kotlin-server/libraries/javalin6/build.gradle.kts.mustache

@@ -1,5 +1,5 @@
 plugins {
-    kotlin("jvm") version "2.0.0"
+    kotlin("jvm") version "2.0.21"
 }
 
 group = "{{groupId}}"

modules/openapi-generator/src/main/resources/kotlin-spring/libraries/spring-boot/buildGradle-sb3-Kts.mustache

@@ -20,7 +20,7 @@ tasks.bootJar {
 
 {{/interfaceOnly}}
 plugins {
-    val kotlinVersion = "1.7.10"
+    val kotlinVersion = "1.9.25"
     id("org.jetbrains.kotlin.jvm") version kotlinVersion
     id("org.jetbrains.kotlin.plugin.jpa") version kotlinVersion
     id("org.jetbrains.kotlin.plugin.spring") version kotlinVersion

modules/openapi-generator/src/main/resources/kotlin-spring/libraries/spring-boot/buildGradleKts.mustache

@@ -27,7 +27,7 @@ tasks.bootJar {
 
 {{/interfaceOnly}}
 plugins {
-    val kotlinVersion = "1.6.21"
+    val kotlinVersion = "1.9.25"
     id("org.jetbrains.kotlin.jvm") version kotlinVersion
     id("org.jetbrains.kotlin.plugin.jpa") version kotlinVersion
     id("org.jetbrains.kotlin.plugin.spring") version kotlinVersion

modules/openapi-generator/src/main/resources/kotlin-spring/libraries/spring-cloud/buildGradle-sb3-Kts.mustache

@@ -14,7 +14,7 @@ tasks.withType<KotlinCompile> {
 }
 
 plugins {
-    val kotlinVersion = "1.7.10"
+    val kotlinVersion = "1.9.25"
     id("org.jetbrains.kotlin.jvm") version kotlinVersion
     id("org.jetbrains.kotlin.plugin.jpa") version kotlinVersion
     id("org.jetbrains.kotlin.plugin.spring") version kotlinVersion

modules/openapi-generator/src/main/resources/kotlin-spring/libraries/spring-cloud/buildGradleKts.mustache

@@ -21,7 +21,7 @@ tasks.withType<KotlinCompile> {
 }
 
 plugins {
-    val kotlinVersion = "1.6.21"
+    val kotlinVersion = "1.9.25"
     id("org.jetbrains.kotlin.jvm") version kotlinVersion
     id("org.jetbrains.kotlin.plugin.jpa") version kotlinVersion
     id("org.jetbrains.kotlin.plugin.spring") version kotlinVersion

samples/server/petstore/kotlin-server/javalin-6/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    kotlin("jvm") version "2.0.0"
+    kotlin("jvm") version "2.0.21"
 }
 
 group = "org.openapitools"