moved back to gradle 6.x because of backward compatibility

.github/workflows/ci.yml

@@ -15,13 +15,17 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
+
       - uses: gradle/wrapper-validation-action@v1
+
       - name: Set up JDK 1.8
         uses: actions/setup-java@v1
         with:
           java-version: 1.8
+
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew
+
       - name: Cache Gradle packages
         uses: actions/cache@v2
         with:
@@ -31,15 +35,16 @@ jobs:
           key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
           restore-keys: |
             ${{ runner.os }}-gradle-
+
       - name: Test with Gradle
         run: ./gradlew --no-daemon --continue check
-        
+
       - name: Jacoco
         run: ./gradlew jacocoTestReport
-     
+
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v1
-  
+
       - name: Cleanup Gradle Cache
         run: |
           rm -f ~/.gradle/caches/modules-2/modules-2.lock

build.gradle

@@ -12,7 +12,7 @@ plugins {
     id 'io.github.gradle-nexus.publish-plugin' version '1.0.0'
     id 'com.coditory.integration-test' version "1.2.3"
     id 'com.adarshr.test-logger' version '3.0.0'
-    id 'com.github.johnrengelman.shadow' version '7.0.0'
+    id 'com.github.johnrengelman.shadow' version '6.1.0'
 }
 
 scmVersion {
@@ -81,8 +81,8 @@ dependencies {
         exclude group: 'org.eclipse.jgit', module: 'org.eclipse.jgit'
     }
 
-    testImplementation group: 'org.testcontainers', name: 'spock', version: '1.16.0'
-    testImplementation group: 'org.spockframework', name: 'spock-core', version: '2.0-groovy-3.0'
+    testImplementation group: 'org.testcontainers', name: 'spock', version: '1.15.3'
+    testImplementation group: 'org.spockframework', name: 'spock-core', version: '2.0-groovy-2.5'
     testImplementation group: 'cglib', name: 'cglib-nodep', version: '3.1'
     testImplementation group: 'org.objenesis', name: 'objenesis', version: '2.4'
     testImplementation group: 'org.apache.sshd', name: 'sshd-core', version: '1.6.0'
@@ -100,11 +100,6 @@ tasks.withType(Test) {
     useJUnitPlatform()
 }
 
-wrapper {
-    gradleVersion = '7.1.1'
-    distributionType = Wrapper.DistributionType.BIN
-}
-
 task relocateShadowJar(type: ConfigureShadowRelocation) {
     target = tasks.shadowJar
     prefix = "axion"

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.9.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists