/**
 * Options to specify when copying JavaBeans or {@link Map} using {@link BeanUtil}.
 *
 * @author higa
 */
public class CopyOptions {

    /**
     * Creates a new {@link CopyOptions} instance.
     */
    public CopyOptions() {
    }

    /**
     * Default converter for dates.
     */

        return new CopyOptions().excludeNull();
    }

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

     *            the option
     * @return the copy options
     */
    protected static CopyOptions buildCopyOptions(final Consumer<CopyOptions> option) {
        final CopyOptions copyOptions = new CopyOptions();
        option.accept(copyOptions);
        return copyOptions;
    }

        assertThat(new CopyOptions().findDefaultConverter(Time.class), is(CopyOptions.DEFAULT_TIME_CONVERTER));
        assertThat(new CopyOptions().findDefaultConverter(Timestamp.class), is(CopyOptions.DEFAULT_TIMESTAMP_CONVERTER));
        assertThat(new CopyOptions().findDefaultConverter(java.util.Date.class), is(CopyOptions.DEFAULT_TIMESTAMP_CONVERTER));

import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.core.beans.util.CopyOptions;
import org.codelibs.fess.crawler.entity.ResponseData;

/**
 * RegexRule is a rule implementation that uses regular expressions to match against the ResponseData.

import java.util.Map;
import java.util.function.Consumer;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.core.beans.util.CopyOptions;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.web.base.login.FessLoginAssist;
import org.codelibs.fess.helper.AccessTokenHelper;
import org.codelibs.fess.helper.ActivityHelper;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.general;

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.core.beans.util.CopyOptions;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.app.web.admin.general.AdminGeneralAction;
import org.codelibs.fess.app.web.api.ApiResult;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.beans.util.CopyOptions;
import org.codelibs.fess.app.pager.BoostDocPager;
import org.codelibs.fess.app.service.BoostDocumentRuleService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.api.ApiResult;

// Use with Java Util Logging (built-in)
Logger logger = Logger.getLogger(MyClass.class.getName());
```

### Bean Copy Configuration
```java
// Configure bean copying behavior
CopyOptions options = new CopyOptions()
    .exclude("password", "internalId")      // Exclude specific fields
    .includeNull(false)                     // Skip null values
    .converter("dateField", new DateConverter("yyyy-MM-dd"));

        hoge.aaa = "1";
        hoge.search_bbb = "2";
        hoge.search_ccc$ddd = "3";
        hoge.search_employee$name = "4";
        final Map<String, Object> map = BeanUtil.copyBeanToNewMap(hoge, new CopyOptions().prefix("search_"));
        assertThat(map.size(), is(3));
        assertThat(map.get("bbb"), is((Object) "2"));
        assertThat(map.get("ccc.ddd"), is((Object) "3"));