KAFKA-12728: version upgrades: gradle (6.8.3 -->> 7.0.1) and gradle s…

…hadow plugin (6.1.0 -->> 7.0.0)

details:
  * gradle upgrade: 6.8.3 -->> 7.0.1
      ** https://github.com/gradle/gradle/releases/tag/v7.0.0
      ** https://github.com/gradle/gradle/releases/tag/v7.0.1
  * 'distributionSha256Sum' gradle property is included into 'gradle-wrapper.properties' file
  * gradle shadow plugin upgrade: 6.1.0 -->> 7.0.0
      ** https://github.com/johnrengelman/shadow/releases/tag/7.0.0

build.gradle

@@ -40,7 +40,7 @@ plugins {
   id "com.github.spotbugs" version '4.7.1' apply false
   id 'org.gradle.test-retry' version '1.2.1' apply false
   id 'org.scoverage' version '5.0.0' apply false
-  id 'com.github.johnrengelman.shadow' version '6.1.0' apply false
+  id 'com.github.johnrengelman.shadow' version '7.0.0' apply false
 }
 
 spotless {

gradle/dependencies.gradle

@@ -61,7 +61,7 @@ versions += [
   bcpkix: "1.66",
   checkstyle: "8.36.2",
   commonsCli: "1.4",
-  gradle: "6.8.3",
+  gradle: "7.0.1",
   grgit: "4.1.0",
   httpclient: "4.5.13",
   easymock: "4.3",

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.3-all.zip
+distributionSha256Sum=ca42877db3519b667cd531c414be517b294b0467059d401e7133f0e55b9bf265
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,5 +1,8 @@
 #!/usr/bin/env sh
 
+#
+# Copyright 2015 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.
 # You may obtain a copy of the License at
@@ -81,7 +84,7 @@ 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/v6.8.3/gradle/wrapper/gradle-wrapper.jar"; then
+    if ! curl -s -S --retry 3 -L -o "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" "https://raw.githubusercontent.com/gradle/gradle/v7.0.1/gradle/wrapper/gradle-wrapper.jar"; then
       rm -f "$APP_HOME/gradle/wrapper/gradle-wrapper.jar"
       # Pause for a bit before looping in case the server throttled us.
       sleep 5