Class <org.gradle.api.tasks.GradleBuild> extends/implements org.gradle.api.internal.ConventionTask that is Gradle Internal API in (GradleBuild.java:0)
Class <org.gradle.api.tasks.JavaExec> extends/implements org.gradle.api.internal.ConventionTask that is Gradle Internal API in (JavaExec.java:0)
Class <org.gradle.api.tasks.SourceTask> extends/implements org.gradle.api.internal.ConventionTask that is Gradle Internal API in (SourceTask.java:0)

import org.gradle.api.provider.Provider
import org.gradle.api.tasks.ClasspathNormalizer
import org.gradle.api.tasks.Delete
import org.gradle.api.tasks.GroovySourceDirectorySet
import org.gradle.api.tasks.JavaExec
import org.gradle.api.tasks.SourceSet
import org.gradle.api.tasks.SourceSetContainer
import org.gradle.api.tasks.TaskProvider
import org.gradle.api.tasks.bundling.Zip
import org.gradle.api.tasks.testing.Test

                }
            }
        """, executer.getDefaultCharacterEncoding()

        and:
        buildFile.write """
            apply plugin: "java"

            task echoDefaultEncoding(type: JavaExec) {
                classpath = project.layout.files(compileJava)
                mainClass = "echo.EchoEncoding"
            }
        """, expectedEncoding

        when:

val generateIdnaMappingTableConfiguration: Configuration by configurations.creating
dependencies {
  generateIdnaMappingTableConfiguration(projects.okhttpIdnaMappingTable)
}
val generateIdnaMappingTable by tasks.creating(JavaExec::class.java) {
  outputs.dir("$buildDir/generated/sources/idnaMappingTable")
  mainClass.set("okhttp3.internal.idn.GenerateIdnaMappingTableCode")
  args("$buildDir/generated/sources/idnaMappingTable")

    public abstract ProcessOperations getProcessOperations();

    @Override
    public ExecResult javaexec(Closure closure) {
        return javaexec(configureUsing(closure));
    }

    @Override
    public ExecResult javaexec(Action<? super JavaExecSpec> action) {
        return getProcessOperations().javaexec(action);
    }

    @Override
    public ExecResult exec(Closure closure) {

     *
     * @param configuration The block to use to configure the [JavaExecSpec].
     * @return The result of the execution.
     */
    @Suppress("unused")
    fun javaexec(configuration: JavaExecSpec.() -> Unit): ExecResult =
        processOperations.javaexec(configuration)

        return new DefaultExecOutput(of(ProcessOutputValueSource.class, spec -> processOutputProviderFactory.configureParametersForExec(spec.getParameters(), action)));
    }

    @Override
    public ExecOutput javaexec(Action<? super JavaExecSpec> action) {
        if (processOutputProviderFactory == null) {
            throw new UnsupportedOperationException();
        }

     * @return the result of the execution
     */
    ExecResult javaexec(@DelegatesTo(JavaExecSpec.class) Closure closure);

    /**
     * Executes a Java main class.
     *
     * @param action The action for configuring the execution.
     * @return the result of the execution
     */
    ExecResult javaexec(Action<? super JavaExecSpec> action);

    /**

| `project.exec {}`
| link:{javadocPath}/org/gradle/process/ExecOperations.html#exec-org.gradle.api.Action-[ExecOperations.exec {}]

| `project.javaexec {}`
| link:{javadocPath}/org/gradle/process/ExecOperations.html#javaexec-org.gradle.api.Action-[ExecOperations.javaexec {}]

| `project.ant {}`
| link:{javadocPath}/org/gradle/api/Task.html#getAnt--[Task.ant]

| `project.createAntBuilder()`

     *
     * @param configuration The block to use to configure the [JavaExecSpec].
     * @return The result of the execution.
     */
    @Suppress("unused")
    fun javaexec(configuration: JavaExecSpec.() -> Unit): ExecResult =
        processOperations.javaexec(configuration)

    /**
     * Configures the plugin management for the entire build.
     *
     * @see [Settings.getPluginManagement]
     * @since 6.0
     */