Fix test run

build.gradle

@@ -2,8 +2,8 @@ plugins {
     id "scala"
 }
 
-group "${projectGroup}"
-version "${projectVersion}"
+group projectGroup
+version projectVersion
 
 repositories {
     mavenCentral()
@@ -12,10 +12,10 @@ repositories {
 dependencies {
     compileOnly group: "org.scala-lang", name:"scala-library", version: "${scalaMajorVersion}.${scalaMinorVersion}"
 
-    compileOnly group: "org.apache.spark", name: "spark-core_${scalaMajorVersion}", version: "${apacheSparkVersion}"
-    compileOnly group: "org.apache.spark", name: "spark-sql_${scalaMajorVersion}", version: "${apacheSparkVersion}"
+    compileOnly group: "org.apache.spark", name: "spark-core_${scalaMajorVersion}", version: apacheSparkVersion
+    compileOnly group: "org.apache.spark", name: "spark-sql_${scalaMajorVersion}", version: apacheSparkVersion
     
-    testImplementation group: "org.scalatest", name: "scalatest_${scalaMajorVersion}", version: "${scalaTestVersion}"
+    testImplementation group: "org.scalatest", name: "scalatest_${scalaMajorVersion}", version: scalaTestVersion
 }
 
 configurations {
@@ -26,18 +26,18 @@ tasks.withType(ScalaCompile).configureEach {
     scalaCompileOptions.additionalParameters = ["-release:${JavaVersion.current()}".toString()]
 }
 
-tasks.register('scalaTest', JavaExec) {
-    dependsOn['testClasses']
-    mainClass = 'org.scalatest.tools.Runner'
-    args = ['-R', 'build/classes/scala/test', '-o']
-    jvmArgs = ['--add-exports=java.base/sun.nio.ch=ALL-UNNAMED'] // https://lists.apache.org/thread/p1yrwo126vjx5tht82cktgjbmm2xtpw9
+tasks.register("scalaTest", JavaExec) {
+    dependsOn["testClasses"]
+    mainClass = "org.scalatest.tools.Runner"
+    args = ["-R", "build/classes/scala/test", "-o"]
+    jvmArgs = ["--add-exports=java.base/sun.nio.ch=ALL-UNNAMED"] // https://lists.apache.org/thread/p1yrwo126vjx5tht82cktgjbmm2xtpw9
     classpath = sourceSets.test.runtimeClasspath
 }
 test.dependsOn scalaTest
 
 jar {
     manifest {
-        attributes "Main-Class": "${mainClass}"
+        attributes "Main-Class": mainClass
     }
     from {
         configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
@@ -45,6 +45,12 @@ jar {
     archiveFileName.set("${getArchiveBaseName().get()}-${projectVersion}.${getArchiveExtension().get()}")
 }
 
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(targetJVM)
+    }
+}
+
 clean.doFirst {
     delete "logs/"
 }

gradle.properties

@@ -1,12 +1,13 @@
+apacheSparkVersion=3.3.2
 scalaMajorVersion=2.13
 scalaMinorVersion=10
 scalaTestVersion=3.2.15
 
-apacheSparkVersion=3.3.2
-
 mainClass=com.barrelsofdata.sparkexamples.Driver
 projectGroup=com.barrelsofdata.sparkexamples
 projectVersion=1.0
+targetJVM=17
 
 org.gradle.daemon=false
+org.gradle.jvmargs=-Xms128m -Xmx256m -XX:+UseSerialGC -Dfile.encoding=UTF-8
 org.gradle.warning.mode=all

src/test/scala/com/barrelsofdata/sparkexamples/DriverTest.scala

@@ -25,7 +25,11 @@ class DriverTest extends AnyFunSuite with BeforeAndAfterAll {
   override def beforeAll(): Unit = {
     setupLogger()
     LOG.info("Setting up spark session")
-    spark = SparkSession.builder().appName(JOB_NAME).master("local[*]").getOrCreate()
+    spark = SparkSession.builder()
+      .appName(JOB_NAME)
+      .master("local[*]")
+      .config("spark.testing.memory", 471859200)
+      .getOrCreate()
   }
   
   override def afterAll(): Unit = {