[RFR-412] Downgrade to Gradle 7

.github/workflows/gradle_build.yml

@@ -21,20 +21,18 @@ jobs:
       - name: Checkout commit
         uses: actions/checkout@v3
 
-      - name: Set up JDK 17
+      - name: Set up JDK 11
         uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
-          java-version: '17'
+          java-version: '11'
 
       - name: Add gradle.properties
         run: |
           # Use a personal read token to install the Cyface Utils package
           cp gradle.properties.template gradle.properties
           echo "githubUser=${{ secrets.GH_READ_ACCOUNT }}" >> gradle.properties
           echo "githubToken=${{ secrets.GH_READ_TOKEN }}" >> gradle.properties
-          # Disable jdk version setting to as it's defined above
-          sed -i "s/org.gradle.java.home=/#org.gradle.java.home=/g" gradle.properties
 
       - name: Build with Gradle
         run: ./gradlew build

.github/workflows/gradle_publish.yml

@@ -18,20 +18,18 @@ jobs:
       - name: Checkout commit
         uses: actions/checkout@v3
 
-      - name: Set up JDK 17
+      - name: Set up JDK 11
         uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
-          java-version: '17'
+          java-version: '11'
 
       - name: Add gradle.properties
         run: |
           # Use the repository's automatically set up token to publish to the registry
           cp gradle.properties.template gradle.properties
           echo "githubUser=${{ github.actor }}" >> gradle.properties
           echo "githubToken=${{ secrets.GITHUB_TOKEN }}" >> gradle.properties
-          # Disable jdk version setting to as it's defined above
-          sed -i "s/org.gradle.java.home=/#org.gradle.java.home=/g" gradle.properties
 
       # versionName is required to publish artifacts to Github Registry
       - name: Set versionName

build.gradle

@@ -25,7 +25,7 @@
  */
 
 buildscript {
-    ext.gradle_version = "8.0.0"
+    ext.gradle_version = "7.4.2"
     ext.kotlin_version = "1.8.20"
 
     repositories {
@@ -44,7 +44,7 @@ ext {
     cyfaceEnergySettingsVersion = "0.0.0" // Automatically overwritten by CI
 
     // Cyface dependencies
-    cyfaceUtilsVersion = "3.3.6"
+    cyfaceUtilsVersion = "3.3.7"
 
     // Android SDK versions
     minSdkVersion = 21 // device support
@@ -70,9 +70,9 @@ ext {
     testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
 
     // Java version
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
-    kotlinTargetJavaVersion = "17"
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
+    kotlinTargetJavaVersion = "11"
 }
 
 allprojects {

gradle.properties.template

@@ -32,9 +32,6 @@ android.nonTransitiveRClass=true
 android.builder.sdkDownload=true
 android.enableJetifier=false
 
-# Needs to point to JDK 17 (embedded in android-studio now)
-org.gradle.java.home=
-
 # Secrets
 
 githubUser=

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.1.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.1-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/.
@@ -80,13 +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=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -143,12 +140,16 @@ 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 $MAX_FD"
     esac
@@ -193,6 +194,10 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
+
+# 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"'
+
 # Collect all arguments for the java command;
 #   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
 #     shell script including quotes and variable substitutions, so put them in

gradlew.bat

@@ -26,6 +26,7 @@ if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
 if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%