this.unchecked = unchecked;
    }

    /**
     * Returns the text to appear in the window title.
     */
    @Nullable @Optional @Input
    public String getWindowTitle() {
        return windowTitle;
    }

    /**
     * Sets the text to appear in the window title.
     */
    public void setWindowTitle(@Nullable String windowTitle) {
        this.windowTitle = windowTitle;

        assertFalse(options.isUse());
        assertFalse(options.isVersion());
        assertFalse(options.isAuthor());
        assertFalse(options.isSplitIndex());
        assertNull(options.getWindowTitle());
        assertNull(options.getDocTitle());
        assertNull(options.getFooter());
        assertNull(options.getBottom());
        assertEmpty(options.getLinks());
        assertEmpty(options.getLinksOffline());

    File getDestinationDirectory();

    void setDestinationDirectory(@Nullable File directory);

    MinimalJavadocOptions destinationDirectory(File directory);

    @Nullable @Optional @Input
    String getWindowTitle();

    void setWindowTitle(@Nullable String windowTitle);

    StandardJavadocDocletOptions windowTitle(String windowTitle);

    @Nullable @Optional @Input
    String getHeader();

            throw new UncheckedIOException(ex);
        }
        getAntGroovydoc().execute(
            getSource(), destinationDir, isUse(), isNoTimestamp(), isNoVersionStamp(),
            getWindowTitle(), getDocTitle(), getHeader(), getFooter(), getPathToOverview(),
            getAccess().get(), getLinks(), getGroovyClasspath(), getClasspath(),
            getTemporaryDir(), getServices().get(FileSystemOperations.class),

            }

            // None of these options work for Scala >=2.8
            // options.getBottom();;
            // options.getTop();
            // options.getHeader();
            // options.getWindowTitle();

            List<String> additionalParameters = options.getAdditionalParameters();
            if (additionalParameters != null) {
                parameters.getOptions().addAll(additionalParameters);

            // Added so JavaDoc has the same behavior as JavaCompile regarding the bootClasspath
            getProjectLayout().files(options.getBootClasspath()).getAsPath();
        }

        if (!isTrue(options.getWindowTitle()) && isTrue(getTitle())) {
            options.windowTitle(getTitle());
        }
        if (!isTrue(options.getDocTitle()) && isTrue(getTitle())) {
            options.setDocTitle(getTitle());
        }

        setJFlags(copyOrNull(original.getJFlags()));
        setOptionFiles(copyOrNull(original.getOptionFiles()));
        setDestinationDirectory(original.getDestinationDirectory());
        setWindowTitle(original.getWindowTitle());
        setHeader(original.getHeader());
        setSourceNames(copyOrNull(original.getSourceNames()));
    }

    private static <T> List<T> copyOrNull(List<T> items) {
        if (items == null) {

Method <org.gradle.api.tasks.javadoc.Groovydoc.getLinks()> does not have raw return type assignable to org.gradle.api.provider.Property in (Groovydoc.java:0)
Method <org.gradle.api.tasks.javadoc.Groovydoc.getWindowTitle()> does not have raw return type assignable to org.gradle.api.provider.Property in (Groovydoc.java:0)

Method <org.gradle.api.tasks.scala.ScalaDocOptions.getTop()> does not have raw return type assignable to org.gradle.api.provider.Property in (ScalaDocOptions.java:0)
Method <org.gradle.api.tasks.scala.ScalaDocOptions.getWindowTitle()> does not have raw return type assignable to org.gradle.api.provider.Property in (ScalaDocOptions.java:0)