Bump min Gradle requirement to 9.0.0 (#1801)

Author: Goooler

.github/workflows/build.yml

@@ -16,15 +16,11 @@ jobs:
         # Always test on the latest version and some LTS.
         java: [ 17, 24 ]
         # Test on the minimum Gradle version and the latest.
-        gradle: [ 8.11, current ]
-        exclude:
-          # Gradle 8.11 doesn't support Java 24.
-          - gradle: 8.11
-            java: 24
+        gradle: [ 9.0.0, current ]
         include:
           # We just test one JDK version on Windows.
           - os: windows-11-arm
-            gradle: 8.11
+            gradle: 9.0.0
             java: 21
           - os: windows-11-arm
             gradle: current

README.md

@@ -32,6 +32,7 @@ Gradle plugin for creating fat/uber JARs with support for package relocation.
 | 8.3.0+         | 8.3                | 8                | [`com.gradleup.shadow`][gradleup's]                  |
 | 9.0.0+         | 8.11               | 11               | [`com.gradleup.shadow`][gradleup's]                  |
 | 9.2.0+         | 8.11               | 17               | [`com.gradleup.shadow`][gradleup's]                  |
+| 9.3.0+         | 9.0                | 17               | [`com.gradleup.shadow`][gradleup's]                  |
 
 
 

build.gradle.kts

@@ -37,7 +37,7 @@ kotlin {
   compilerOptions {
     allWarningsAsErrors = true
     // https://docs.gradle.org/current/userguide/compatibility.html#kotlin
-    apiVersion = KotlinVersion.KOTLIN_2_0 // TODO: upgrade to 2.2 when the min Gradle requirement is 9.0+
+    apiVersion = KotlinVersion.KOTLIN_2_2
     languageVersion = apiVersion
     jvmTarget = JvmTarget.fromTarget(libs.versions.jdkRelease.get())
     jvmDefault = JvmDefaultMode.NO_COMPATIBILITY
@@ -101,7 +101,7 @@ publishing.publications.withType<MavenPublication>().configureEach {
 configurations.named(API_ELEMENTS_CONFIGURATION_NAME) {
   attributes.attribute(
     GradlePluginApiVersion.GRADLE_PLUGIN_API_VERSION_ATTRIBUTE,
-    objects.named<GradlePluginApiVersion>("8.11"),
+    objects.named<GradlePluginApiVersion>("9.0.0"),
   )
 }
 

docs/README.md

@@ -29,6 +29,7 @@ dependent libraries into the output jar without incurring the I/O overhead of ex
 | 8.3.0+         | 8.3                | 8                | [`com.gradleup.shadow`][gradleup's]                  |
 | 9.0.0+         | 8.11               | 11               | [`com.gradleup.shadow`][gradleup's]                  |
 | 9.2.0+         | 8.11               | 17               | [`com.gradleup.shadow`][gradleup's]                  |
+| 9.3.0+         | 9.0                | 17               | [`com.gradleup.shadow`][gradleup's]                  |
 
 ## Benefits of Shadow
 

docs/changes/README.md

@@ -7,6 +7,7 @@
 
 - Change the group of `startShadowScripts` from `application` to `other`. ([#1797](https://github.com/GradleUp/shadow/pull/1797))
 - Update ASM and jdependency to support Java 26. ([#1799](https://github.com/GradleUp/shadow/pull/1799))
+- Bump min Gradle requirement to 9.0.0. ([#1801](https://github.com/GradleUp/shadow/pull/1801))
 
 ## [9.2.2](https://github.com/GradleUp/shadow/compare/9.2.2) - 2025-09-26
 

src/functionalTest/kotlin/com/github/jengelman/gradle/plugins/shadow/ApplicationPluginTest.kt

@@ -53,9 +53,9 @@ class ApplicationPluginTest : BasePluginTest() {
           id 'org.gradle.toolchains.foojay-resolver-convention'
         }
       """.trimIndent(),
-      runShadowBlock = """
+      runShadowBlock = $$"""
         doFirst {
-          logger.lifecycle("Running application with JDK ${'$'}{it.javaLauncher.get().metadata.languageVersion.asInt()}")
+          logger.lifecycle("Running application with JDK ${it.javaLauncher.get().metadata.languageVersion.asInt()}")
         }
       """.trimIndent(),
     )
@@ -95,8 +95,8 @@ class ApplicationPluginTest : BasePluginTest() {
     val winScript = path("myapp-shadow/bin/myapp.bat", installPath)
 
     assertThat(unixScript.readText()).contains(
-      "CLASSPATH=\$APP_HOME/lib/myapp-1.0-all.jar",
-      "exec \"\$JAVACMD\" \"$@\"",
+      $$"CLASSPATH=$APP_HOME/lib/myapp-1.0-all.jar",
+      $$"exec \"$JAVACMD\" \"$@\"",
       "DEFAULT_JVM_OPTS='\"--add-opens=java.base/java.lang=ALL-UNNAMED\"'",
     )
     assertThat(winScript.readText()).contains(

src/functionalTest/kotlin/com/github/jengelman/gradle/plugins/shadow/JavaPluginsTest.kt

@@ -863,12 +863,12 @@ class JavaPluginsTest : BasePluginTest() {
   fun includeFilesInTaskOutputDirectory() {
     // Create a build that has a task with jars in the output directory
     projectScript.appendText(
-      """
+      $$"""
       def createJars = tasks.register('createJars') {
-        def artifactAJar = file('${artifactAJar.invariantSeparatorsPathString}')
-        def artifactBJar = file('${artifactBJar.invariantSeparatorsPathString}')
+        def artifactAJar = file('$${artifactAJar.invariantSeparatorsPathString}')
+        def artifactBJar = file('$${artifactBJar.invariantSeparatorsPathString}')
         inputs.files(artifactAJar, artifactBJar)
-        def outputDir = file('${'$'}{buildDir}/jars')
+        def outputDir = file('${buildDir}/jars')
         outputs.dir(outputDir)
         doLast {
           artifactAJar.withInputStream { input ->
@@ -883,7 +883,7 @@ class JavaPluginsTest : BasePluginTest() {
           }
         }
       }
-      $shadowJarTask {
+      $$shadowJarTask {
         includedDependencies.from(files(createJars).asFileTree)
       }
       """.trimIndent(),

src/test/kotlin/com/github/jengelman/gradle/plugins/shadow/relocation/SimpleRelocatorTest.kt

@@ -81,13 +81,13 @@ class SimpleRelocatorTest {
       includes = listOf("%regex[org/foo/R(\\$.*)?$]"),
     )
     assertThat(relocator.canRelocatePath("org/foo/R.class")).isTrue()
-    assertThat(relocator.canRelocatePath("org/foo/R\$string.class")).isTrue()
-    assertThat(relocator.canRelocatePath("org/foo/R\$layout.class")).isTrue()
+    assertThat(relocator.canRelocatePath($$"org/foo/R$string.class")).isTrue()
+    assertThat(relocator.canRelocatePath($$"org/foo/R$layout.class")).isTrue()
     assertThat(relocator.canRelocatePath("org/foo/Recording/R.class")).isFalse()
     assertThat(relocator.canRelocatePath("org/foo/Recording.class")).isFalse()
-    assertThat(relocator.canRelocatePath("org/foo/bar/R\$string.class")).isFalse()
+    assertThat(relocator.canRelocatePath($$"org/foo/bar/R$string.class")).isFalse()
     assertThat(relocator.canRelocatePath("org/R.class")).isFalse()
-    assertThat(relocator.canRelocatePath("org/R\$string.class")).isFalse()
+    assertThat(relocator.canRelocatePath($$"org/R$string.class")).isFalse()
 
     // Exclude with Regex
     relocator = SimpleRelocator(