KAFKA-14680: Upgrade gradle version from 7.6 to 8.0.1

build.gradle

@@ -30,7 +30,7 @@ buildscript {
 }
 
 plugins {
-  id 'com.diffplug.spotless' version '6.13.0'
+  id 'com.diffplug.spotless' version '6.13.0' // newer versions require Java 11, so we can't use them until Kafka 4.0
   id 'com.github.ben-manes.versions' version '0.44.0'
   id 'idea'
   id 'java-library'
@@ -54,7 +54,7 @@ spotless {
 
 ext {
   gradleVersion = versions.gradle
-  minJavaVersion = "8"
+  minJavaVersion = 8
   buildVersionFileName = "kafka-version.properties"
 
   defaultMaxHeapSize = "2g"
@@ -254,9 +254,6 @@ subprojects {
     fineTuneEclipseClasspathFile(eclipse, project)
   }
 
-  sourceCompatibility = minJavaVersion
-  targetCompatibility = minJavaVersion
-
   java {
     consistentResolution {
       // resolve the compileClasspath and then "inject" the result of resolution as strict constraints into the runtimeClasspath
@@ -273,12 +270,17 @@ subprojects {
     options.compilerArgs << "-Xlint:-serial"
     options.compilerArgs << "-Xlint:-try"
     options.compilerArgs << "-Werror"
+
     // --release is the recommended way to select the target release, but it's only supported in Java 9 so we also
-    // set --source and --target via `sourceCompatibility` and `targetCompatibility`. If/when Gradle supports `--release`
-    // natively (https://github.com/gradle/gradle/issues/2510), we should switch to that.
+    // set --source and --target via `sourceCompatibility` and `targetCompatibility` a couple of lines below
     if (JavaVersion.current().isJava9Compatible())
-      options.compilerArgs << "--release" << minJavaVersion
+      options.release = minJavaVersion
   }
+
+  // We should only set this if Java version is < 9 (--release is recommended for >= 9), but the Scala plugin for IntelliJ sets
+  // `-target` incorrectly if this is unset
+  sourceCompatibility = minJavaVersion
+  targetCompatibility = minJavaVersion
 
   if (shouldPublish) {
 
@@ -680,9 +682,12 @@ subprojects {
       ]
     }
 
-    // Scalac's `-release` requires Java 9 or higher
-    if (JavaVersion.current().isJava9Compatible())
-      scalaCompileOptions.additionalParameters += ["-release", minJavaVersion]
+    // Scalac 2.12 `-release` requires Java 9 or higher, but Scala 2.13 doesn't have that restriction
+    if (versions.baseScala == "2.13")
+      scalaCompileOptions.additionalParameters += ["-release:" + minJavaVersion] // Use `:` here to workaround Gradle bug (see https://github.com/gradle/gradle/issues/23962#issuecomment-1437348400)
+    else if (JavaVersion.current().isJava9Compatible())
+      scalaCompileOptions.additionalParameters += ["-release", String.valueOf(minJavaVersion)] // Don't use `:` here as it breaks compilation with Scala 2.12
+
 
     configure(scalaCompileOptions.forkOptions) {
       memoryMaximumSize = defaultMaxHeapSize
@@ -2111,7 +2116,6 @@ project(':streams:streams-scala') {
     dependsOn 'copyDependantLibs'
   }
 
-  test.dependsOn(':spotlessScalaCheck')
 }
 
 project(':streams:test-utils') {

gradle/dependencies.gradle

@@ -62,13 +62,13 @@ versions += [
   checkstyle: "8.36.2",
   commonsCli: "1.4",
   dropwizardMetrics: "4.1.12.1",
-  gradle: "7.6",
+  gradle: "8.0.1",
   grgit: "4.1.1",
   httpclient: "4.5.13",
   easymock: "4.3",
   jackson: "2.13.4",
   jacksonDatabind: "2.13.4.2",
-  jacoco: "0.8.7",
+  jacoco: "0.8.8",
   javassist: "3.27.0-GA",
   jetty: "9.4.48.v20220622",
   jersey: "2.34",

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionSha=312eb12875e1747e05c2f81a4789902d7e4ec5defbd1eefeaccc08acf096505d
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-all.zip
+distributionSha=948d1e4ccc2f6ae36cbfa087d827aaca51403acae5411e664a6000bb47946f22
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.0.1-all.zip
+networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,10 +80,10 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
@@ -118,7 +118,7 @@ esac
 # Loop in case we encounter an error.
 for attempt in 1 2 3; do
   if [ ! -e "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" ]; then
-    if ! curl -s -S --retry 3 -L -o "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" "https://raw.githubusercontent.com/gradle/gradle/v7.6.0/gradle/wrapper/gradle-wrapper.jar"; then
+    if ! curl -s -S --retry 3 -L -o "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" "https://raw.githubusercontent.com/gradle/gradle/v8.0.1/gradle/wrapper/gradle-wrapper.jar"; then
       rm -f "$APP_HOME/gradle/wrapper/gradle-wrapper.jar"
       # Pause for a bit before looping in case the server throttled us.
       sleep 5
@@ -156,12 +156,16 @@ fi
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac