plugins {
            id 'java'
            id 'elasticsearch.internal-licenseheaders'
        }
        """
        dualLicensedFile()
        unknownSourceFile()
        unapprovedSourceFile()

        when:
        def result = gradleRunner("licenseHeaders").buildAndFail()

        then:
        result.task(":licenseHeaders").outcome == TaskOutcome.FAILED

    // with the java-gradle-plugin
    automatedPublishing = false
    plugins {
        internalLicenseheaders {
            id = 'elasticsearch.internal-licenseheaders'
            implementationClass = 'org.elasticsearch.gradle.internal.conventions.precommit.LicenseHeadersPrecommitPlugin'
        }
        eclipse {
            id = 'elasticsearch.eclipse'

        this.providerFactory = providerFactory;
    }

    @Override
    public TaskProvider<? extends Task> createTask(Project project) {
        return project.getTasks().register("licenseHeaders", LicenseHeadersTask.class, licenseHeadersTask -> {
            project.getPlugins().withType(JavaBasePlugin.class, javaBasePlugin -> {

        String licenseHeader = null;
        try {
            licenseHeader = readFileToString(licenseHeaderFile, "UTF-8").replace(System.lineSeparator(), lineSeparator);
        } catch (IOException e) {
            throw new GradleException("Cannot configure eclipse", e);
        }

        String finalLicenseHeader = licenseHeader;