Build on latest Java, test through lowest possible - approach 2

.github/workflows/e2e.yml

@@ -11,6 +11,7 @@ on:
 
 jobs:
   tests:
+    name: "E2E tests"
     runs-on: ubuntu-latest
     steps:
     - name: Checkout project with submodules
@@ -20,7 +21,7 @@ jobs:
     - name: Setup JDK
       uses: actions/setup-java@v4
       with:
-        java-version: 11
+        java-version: 19
         distribution: 'zulu'
     - uses: gradle/gradle-build-action@v2
     - name: Run sanity check
@@ -31,5 +32,8 @@ jobs:
         ORG_GRADLE_PROJECT_sonatypePasswordE2E: ${{ secrets.SONATYPE_PASSWORD_E2E }}
         ORG_GRADLE_PROJECT_signingKeyE2E: ${{ secrets.GPG_SIGNING_KEY_E2E }}
         ORG_GRADLE_PROJECT_signingPasswordE2E: ${{ secrets.GPG_SIGNING_KEY_PASSPHRASE_E2E }}
-      run: |
-        ./gradlew --stacktrace -Pe2eVerboseOutput e2eTest
+      run: >
+        ./gradlew
+        --stacktrace
+        -Pe2eVerboseOutput
+        e2eTest

.github/workflows/gradle-latest-versions.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-java@v4
         with:
-          java-version: 11
+          java-version: 19
           distribution: 'zulu'
       - uses: gradle/gradle-build-action@v2
 

.github/workflows/java-versions.yml

@@ -15,8 +15,9 @@ jobs:
   openjdk:
     strategy:
       matrix:
-        jdk: [11, 17]
-    name: "OpenJDK ${{ matrix.jdk }}"
+        jdk: [11, 17, 19]
+        testJdk: [auto, 8]
+    name: "OpenJDK ${{ matrix.jdk }} (with testJDK ${{ matrix.testJdk }})"
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -38,4 +39,5 @@ jobs:
       - name: Test cross Java versions compatibility
         run: |
           ./gradlew --version
-          ./gradlew --stacktrace build compatTestJava${{ matrix.jdk }}
+          ./gradlew -q javaToolchains
+          ./gradlew --stacktrace -PnexusPublishPlugin.test.java=${{ matrix.testJdk }} build compatTestJava${{ matrix.jdk }}

.github/workflows/main.yml

@@ -21,8 +21,8 @@ jobs:
     - uses: actions/checkout@v4
     - uses: actions/setup-java@v4
       with:
-        java-version: 11
+        java-version: 19
         distribution: 'zulu'
     - uses: gradle/gradle-build-action@v2
       with:
-        arguments: --stacktrace build compatTestJava11
+        arguments: --stacktrace build compatTestJava17

build.gradle.kts

@@ -92,7 +92,7 @@ dependencies {
     testImplementation("ru.lanwen.wiremock:wiremock-junit5:1.3.1")
     testImplementation("org.assertj:assertj-core:3.25.1")
     // This cannot be updated to 5.x as it requires Java 11,
-    // but we are running CI on Java 8 in .github/workflows/java-versions.yml.
+    // but we are running tests on CI with Java 8 in .github/workflows/java-versions.yml.
     testImplementation("org.mockito:mockito-junit-jupiter:4.11.0")
     testImplementation("com.nhaarman.mockitokotlin2:mockito-kotlin:2.2.0")
 }
@@ -129,6 +129,22 @@ stutter {
                 compatibleRange("7.3")
             }
         }
+        register("java19") {
+            javaToolchain {
+                languageVersion = JavaLanguageVersion.of(19)
+            }
+            gradleVersions {
+                compatibleRange("7.6")
+            }
+        }
+        register("javaauto") {
+            javaToolchain {
+                languageVersion = JavaLanguageVersion.of(JavaVersion.current().majorVersion)
+            }
+            gradleVersions {
+                compatibleRange("7.6")
+            }
+        }
     }
 }
 
@@ -174,7 +190,7 @@ kotlin.target.compilations.configureEach {
     compilerOptions.configure {
         // Gradle fully supports running on Java 8: https://docs.gradle.org/current/userguide/compatibility.html,
         // so we should allow users to do that too.
-        jvmTarget = JvmTarget.fromTarget(JavaVersion.VERSION_1_8.toString())
+        jvmTarget = JvmTarget.fromTarget(project.java.targetCompatibility.toString())
 
         // Suppress "Language version 1.3 is deprecated and its support will be removed in a future version of Kotlin".
         freeCompilerArgs.add("-Xsuppress-version-warnings")
@@ -252,6 +268,17 @@ tasks {
                 showStandardStreams = true
             }
         }
+        javaLauncher = project.javaToolchains.launcherFor {
+            languageVersion = providers
+                .gradleProperty("nexusPublishPlugin.test.java")
+                .map {
+                    if (it == "auto") {
+                        JavaLanguageVersion.of(JavaVersion.current().majorVersion)
+                    } else {
+                        JavaLanguageVersion.of(it)
+                    }
+                }
+        }
     }
     withType<Test>().configureEach {
         dependsOn(shadowJar)
@@ -261,6 +288,19 @@ tasks {
     withType<Test>().matching { it.name.startsWith("compatTest") }.configureEach {
         systemProperty("plugin.version", project.version)
     }
+    named<Test>("test").configure {
+        javaLauncher = project.javaToolchains.launcherFor {
+            languageVersion = providers
+                .gradleProperty("nexusPublishPlugin.test.java")
+                .map {
+                    if (it == "auto") {
+                        JavaLanguageVersion.of(JavaVersion.current().majorVersion)
+                    } else {
+                        JavaLanguageVersion.of(it)
+                    }
+                }
+        }
+    }
 }
 
 publishing {

buildSrc/src/main/kotlin/IdeaExtExtensions.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 the original author or authors.
+ * Copyright 2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,13 +24,13 @@ import java.io.File
 import kotlin.math.min
 
 fun IdeaProject.settings(configuration: ProjectSettings.() -> kotlin.Unit) =
-        (this as ExtensionAware).configure(configuration)
+    (this as ExtensionAware).configure(configuration)
 
 fun ProjectSettings.copyright(configuration: CopyrightConfiguration.() -> kotlin.Unit) =
-        (this as ExtensionAware).configure(configuration)
+    (this as ExtensionAware).configure(configuration)
 
 fun Project.readCopyrightHeader(licenseHeaderFile: File) =
-        licenseHeaderFile.readLines()
-                .map { line -> line.substring(min(line.length, 3)) }
-                .joinToString("\n")
-                .trim()
+    licenseHeaderFile.readLines()
+        .map { line -> line.substring(min(line.length, 3)) }
+        .joinToString("\n")
+        .trim()

gradle.properties

@@ -1,3 +1,9 @@
 org.gradle.caching=true
 org.gradle.parallel=true
 org.gradle.configuration-cache=true
+
+# Version of JDK to use for running tests.
+# Possible values:
+# - auto -> use Java running Gradle, best for local dev.
+# - A Java major version number, like 8, 11 or 17.
+nexusPublishPlugin.test.java=auto

stutter.lockfile

@@ -1,4 +1,6 @@
 # DO NOT MODIFY: Generated by Stutter plugin.
 java11=6.2.2,6.9.4,7.0.2,7.6.2,8.0.2,8.2.1
 java17=7.3.3,7.6.2,8.0.2,8.2.1
+java19=7.6.2,8.0.2,8.2.1
 java8=6.2.2,6.9.4,7.0.2,7.6.2,8.0.2,8.2.1
+javaauto=7.3.3,7.6.2,8.0.2,8.2.1