void setJFlags(@Nullable List<String> jFlags);

    MinimalJavadocOptions jFlags(String... jFlags);

    @Nullable @Optional @PathSensitive(PathSensitivity.NONE) @InputFiles
    List<File> getOptionFiles();

    void setOptionFiles(@Nullable List<File> optionFiles);

    MinimalJavadocOptions optionFiles(File... argumentFiles);

    @Internal
    File getDestinationDirectory();

        assertNull(options.getLocale());
        assertNull(options.getEncoding());
        assertEmpty(options.getJFlags());
        assertEmpty(options.getSourceNames());
        assertEmpty(options.getOptionFiles());
        // standard doclet options
        assertNull(options.getDestinationDirectory());
        assertFalse(options.isUse());
        assertFalse(options.isVersion());
        assertFalse(options.isAuthor());

            .args(GUtil.prefix("@", GFileUtils.toPaths(optionFiles))); // add additional option files
    }

    @Override
    public List<File> getOptionFiles() {
        return optionFiles;
    }

    @Override
    public void setOptionFiles(List<File> optionFiles) {
        this.optionFiles = optionFiles;
    }

    @Override

        setLocale(original.getLocale());
        setEncoding(original.getEncoding());
        setJFlags(copyOrNull(original.getJFlags()));
        setOptionFiles(copyOrNull(original.getOptionFiles()));
        setDestinationDirectory(original.getDestinationDirectory());
        setWindowTitle(original.getWindowTitle());
        setHeader(original.getHeader());

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