Asking help for a groovy plugin project which need "pl.droidsonroids.jacoco.testkit"

[Jacopo-Inglese]

Hi everybody :) , i am a student who is trying to testing a plugin in Groovy . It's a functionalTest plugin with spock and gradlekit functions: I necessarily need to apply Jacoco's coverage for this testing which is linked to other groovy classes in my project: so i tried to use the plugin "pl.droidsonroids.jacoco.testkit" in my build.gradle, but i notice that it's only for KOTLIN . I tried to study an example and i find it in "https://dzone.com/articles/functional-tests-gradle-plugin" which implemented a "Code lines counter plugin" with "pl.droidsonroids.jacoco.testkit". Can someone help me to modify my GROOVY plugin in the same way of the kotlin example of the "Code lines counter plugin"
Thanks a lot! (and sorry for my english) Here is my functionalTest class code :

"" package pluginTesi

import org.junit.Rule import org.junit.rules.TemporaryFolder import spock.lang.Specification import org.gradle.testkit.runner.GradleRunner

import static org.gradle.testkit.runner.TaskOutcome.FAILED import static org.gradle.testkit.runner.TaskOutcome.SUCCESS

class EsempiotesiPluginFunctionalTest extends Specification {

@Rule
TemporaryFolder testProjectDir = new TemporaryFolder()
File buildFile

def setup() {
    buildFile = testProjectDir.newFile('build.gradle')
    buildFile << """
        plugins {
          id('controllPlugin.prova')
        }
    """
}



def "testing configuration"() {
    given:
    File testFile = testProjectDir.newFile('config.properties')<<"""PRJs_RecallRisultatiNOC.txt=Assertion*,1000,f"""

    buildFile  <<"""
    prova{
        file2 = file('${testFile.getName()}')
  
    }
    """

    when:
    def result = GradleRunner.create()
            .withProjectDir(testProjectDir.root)
            .withArguments('prova')
            .withPluginClasspath()
            .build()


    then:
    result.task(":prova").outcome == SUCCESS
}

}

""