assertFalse(options.isNoHelp());
        assertFalse(options.isNoNavBar());
        assertNull(options.getHelpFile());
        assertNull(options.getStylesheetFile());
        assertFalse(options.isSerialWarn());
        assertNull(options.getCharSet());
        assertNull(options.getDocEncoding());
        assertFalse(options.isKeyWords());
        assertEmpty(options.getTags());
        assertEmpty(options.getTaglets());

     * which helps to properly document default serializable fields and writeExternal methods.
     */
    @Input
    public boolean isSerialWarn() {
        return serialWarn.getValue();
    }

    public void setSerialWarn(boolean serialWarn) {
        this.serialWarn.setValue(serialWarn);
    }

Method <org.gradle.external.javadoc.StandardJavadocDocletOptions.isSerialWarn()> does not have raw return type assignable to org.gradle.api.provider.Property in (StandardJavadocDocletOptions.java:0)