def jvm = Jvm.current()

        then:
        jvm.isIbmJvm()

        where:
        vendorProperty << ['java.vendor', 'java.vm.vendor']
    }

    def "finds executable for java home supplied"() {
        System.properties['java.vm.vendor'] = 'Sun'

        when:
        def home = tmpDir.createDir("home")
        home.create {
            jre {
                bin {

		} else if err != nil {
			fmt.Fprintf(os.Stderr, "unshare: mount %s: %v\n", dir, err)
			os.Exit(2)
		}
		os.Exit(0)
	}

	testenv.MustHaveExec(t)
	exe, err := os.Executable()
	if err != nil {
		t.Fatal(err)
	}

	d := t.TempDir()
	t.Cleanup(func() {
		// If the subprocess fails to unshare the parent directory, force-unmount it
		// so that the test can clean it up.

	// Fork+exec the telemetry child.
	exe, err := os.Executable()
	if err != nil {
		// There was an error getting os.Executable. It's possible
		// for this to happen on AIX if os.Args[0] is not an absolute
		// path and we can't find os.Args[0] in PATH.
		log.Printf("failed to start telemetry sidecar: os.Executable: %v", err)
		return
	}

		return err
	}
	return binary.Write(r.f, r.order, data)
}

// machoCombineDwarf merges dwarf info generated by dsymutil into a macho executable.
//
// With internal linking, DWARF is embedded into the executable, this lets us do the
// same for external linking.
// exef is the file of the executable with no DWARF. It must have enough room in the macho
// header to add the DWARF sections. (Use ld's -headerpad option)

		// real baked-in GOROOT.
		t.Logf("found GOROOT %q from environment; checking embedded GOROOT value", envGoroot)
		testenv.MustHaveExec(t)
		exe, err := os.Executable()
		if err != nil {
			t.Fatal(err)
		}
		cmd := exec.Command(exe)
		cmd.Env = append(os.Environ(), "GOROOT=", "GO_RUNTIME_DEBUG_TEST_ENTRYPOINT=dumpgoroot")
		out, err := cmd.Output()
		if err != nil {

For example, you can configure the `java` executable for a task as follows:

====
include::sample[dir="snippets/java/toolchain-config-task/kotlin/",files="build.gradle.kts[tags=java-executable]"]
include::sample[dir="snippets/java/toolchain-config-task/groovy/",files="build.gradle[tags=java-executable]"]
====

As another example, you can configure the _Java Home_ for a task as follows:

====

    full_cmd = (
        ctx.executable.tfcompile_tool.path + " " + " ".join(flags) + " " + ctx.attr.flags + post_command
    )
    ctx.actions.run_shell(
        inputs = ctx.files.srcs,
        outputs = out_files,
        tools = [ctx.executable.tfcompile_tool] + dfsan_deps,
        env = tfcompile_env,
        command = full_cmd,

    test {
        doFirst {
            println path + " waiting for other tests..."
            latch.countDown()
            latch.await()
            println path + " go"
        }

        executable = "$java"
    }
}
"""
        subprojects.each { subproject ->
            settingsFile << "include '$subproject'\n"
            file("${subproject}/src/test/java/ThingTest.java") << """
import org.junit.Test;

            languageVersion = JavaVersion.current().getMajorVersionNumber();
        }

        return getForkingSpec(fallbackJavaHome, languageVersion);
    }

    abstract protected T getCommandLineSpec(File executable);

    abstract protected T getForkingSpec(File javaHome, int javaLanguageVersion);

    abstract protected T getDefaultSpec();

		return ipc.label
	}
	return fmt.Sprintf("FileExisting-%s", strings.Replace(ipc.executable, "/", "-", -1))
}

// Check validates if the given executable is present in the path.
func (ipc InPathCheck) Check() (warnings, errs []error) {
	klog.V(1).Infof("validating the presence of executable %s", ipc.executable)
	_, err := ipc.exec.LookPath(ipc.executable)
	if err != nil {
		if ipc.mandatory {
			// Return as an error: