*
     * @return A {@link CopyOptions} that excludes properties with whitespace values from the operation.
     * @see CopyOptions#excludeWhitespace()
     */
    public static CopyOptions excludeWhitespace() {
        return new CopyOptions().excludeWhitespace();
    }

    /**
     * Returns a {@link CopyOptions} with the specified prefix.
     * <p>

import static org.codelibs.core.beans.util.CopyOptionsUtil.exclude;
import static org.codelibs.core.beans.util.CopyOptionsUtil.excludeNull;
import static org.codelibs.core.beans.util.CopyOptionsUtil.excludeWhitespace;
import static org.codelibs.core.beans.util.CopyOptionsUtil.include;
import static org.codelibs.core.beans.util.CopyOptionsUtil.prefix;
import static org.codelibs.core.collection.CollectionsUtil.newHashMap;

        if (defaultRule) {
            return true;
        }

        final Map<String, Object> map = new HashMap<>();
        BeanUtil.copyBeanToMap(responseData, map, CopyOptions::excludeWhitespace);
        for (final Map.Entry<String, Pattern> entry : regexMap.entrySet()) {
            String value = "";
            final Object obj = map.get(entry.getKey());
            if (obj != null) {

                    final OpenSearchAccessResult accessResult = BeanUtil.copyMapToNewBean(source, OpenSearchAccessResult.class, option -> {
                        option.converter(new EsTimestampConverter(), timestampFields).excludeWhitespace();
                        option.exclude(OpenSearchAccessResult.ACCESS_RESULT_DATA);
                    });
                    @SuppressWarnings("unchecked")

        return this;
    }

    /**
     * Excludes properties with only whitespace from the operation.
     *
     * @return This instance itself
     */
    public CopyOptions excludeWhitespace() {
        excludesWhitespace = true;
        return this;
    }

    /**
     * Specifies the prefix.
     * <p>

            final Map<String, Object> source = response.getSource();
            final T bean = BeanUtil.copyMapToNewBean(source, clazz, option -> {
                option.converter(new EsTimestampConverter(), timestampFields).excludeWhitespace();
                option.exclude(OpenSearchAccessResult.ACCESS_RESULT_DATA);
            });
            @SuppressWarnings("unchecked")