buildFile << """
            apply plugin: 'java'
            ${mavenCentralRepository()}
            dependencies { ${testImplementationConfiguration} 'junit:junit:4.13' }
            compileTestJava.options.fork = true  // forked as 'Gradle Test Executor 1'
        """

        file("src/test/java/example/MyTest.java") << """
            package example;
            public class MyTest {

//
//go:nowritebarrier
func newosproc(mp *m) {
	if false {
		print("newosproc mp=", mp, " ostk=", &mp, "\n")
	}
	pid := rfork(_RFPROC | _RFMEM | _RFNOWAIT)
	if pid < 0 {
		throw("newosproc: rfork failed")
	}
	if pid == 0 {
		tstart_plan9(mp)
	}
}

func exitThread(wait *atomic.Uint32) {
	// We should never reach exitThread on Plan 9 because we let

            compileJava {
                options.fork = true
                options.forkOptions.executable = "${TextUtil.normaliseFileSeparators(jdk.javacExecutable.absolutePath)}"
            }
        """
    }

    private TestFile configureForkOptionsJavaHome(Jvm jdk) {
        buildFile << """
            compileJava {
                options.fork = true

                compileScala {
                    options.fork = true
                    options.forkOptions.executable = "${TextUtil.normaliseFileSeparators(otherJdk.javaExecutable.absolutePath)}"
                }
            """
        } else {
            buildFile << """
                compileScala {
                    options.fork = true

                compileGroovy {
                    options.fork = true
                    options.forkOptions.executable = "${TextUtil.normaliseFileSeparators(otherJdk.javaExecutable.absolutePath)}"
                }
            """
        } else {
            buildFile << """
                compileGroovy {
                    options.fork = true

                <version>2.23.0</version>
              </path>
            </annotationProcessorPaths>
            <!-- Fork:

                 - for JDK8 because we use a javac9 bootclasspath

                 - for JDK9+ because we need args like add-exports
                 -->
            <fork>true</fork>
          </configuration>
        </plugin>
        <plugin>
          <artifactId>maven-jar-plugin</artifactId>

                <version>2.23.0</version>
              </path>
            </annotationProcessorPaths>
            <!-- Fork:

                 - for JDK8 because we use a javac9 bootclasspath

                 - for JDK9+ because we need args like add-exports
                 -->
            <fork>true</fork>
          </configuration>
        </plugin>
        <plugin>
          <artifactId>maven-jar-plugin</artifactId>

            forkedProjects = new ArrayList<>(forkedExecutions.size());

            try {
                for (Map.Entry<String, List<MojoExecution>> fork : forkedExecutions.entrySet()) {
                    String projectId = fork.getKey();

                    ProjectIndex projectIndex = session.getSession()
                            .getData()

2\cocoartf1404\cocoasubrtf470 \cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;} {\colortbl;\red255\green255\blue255;} \pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qc \f0\fs24 \cf0 Fork}VerticalPad0ClassLin{82, 147}{168, 133}StylestrokeHeadArrow{{24, 101.5}, {64, 28}}ClassShapedGraphicFi.00358888g0.350909r0.046105FontHelveticaS{\rtf1\ansi\ansicpg1252\cocoartf1404\cocoasubrtf470 \cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}...

                    <showDeprecation>true</showDeprecation>
                    <showWarnings>true</showWarnings>
                    <debug>true</debug>
                    <fork>true</fork>
                    <compilerArgs>
                        <arg>-Xlint:unchecked</arg>
                    </compilerArgs>
                    <maxmem>128m</maxmem>
                </configuration>