* either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core.lang;

/**
 * Utility class for system operations.
 *
 * @author wyukawa
 * @author shinsuke
 *
 */
public abstract class SystemUtil {

    /**
     * Do not instantiate.
     */
    protected SystemUtil() {
    }

/**
 * Utility class for SMB file copy operations.
 * Provides methods for efficient server-side copying using SMB2 IOCTL operations.
 *
 * @author mbechler
 *
 */
public final class SmbCopyUtil {

    private static final Logger log = LoggerFactory.getLogger(SmbCopyUtil.class);

    /**
     * Private constructor to prevent instantiation of utility class.
     */
    private SmbCopyUtil() {

import jcifs.SmbResourceLocator;

@ExtendWith(MockitoExtension.class)
class SmbEnumerationUtilTest {

    @Mock
    SmbFilenameFilter fnf;

    @Mock
    SmbFileFilter ff;

    // Utility to create a private inner class instance reflectively
    private static Object newPrivateInner(String simpleName, Class<?>[] paramTypes, Object... args) {
        try {

These examples are intentionally simple, but show how it all works.

In the chapters about security, there are utility functions that are implemented in this same way.

If you understood all this, you already know how those utility tools for security work underneath.

///

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.ArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Utility class for parsing CSV text
 */
public final class KuromojiCSVUtil {
    private static final char QUOTE = '"';

    private static final char COMMA = ',';

import org.eclipse.aether.metadata.AbstractMetadata;
import org.eclipse.aether.metadata.MergeableMetadata;
import org.eclipse.aether.metadata.Metadata;

/**
 * <strong>Warning:</strong> This is an internal utility class that is only public for technical reasons, it is not part
 * of the public API. In particular, this class can be changed or deleted without prior notice.
 *
 */
@Deprecated

 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.text.DecimalFormatUtil;

/**
 * Utility class for conversions to {@link Long}.
 *
 * @author higa
 */
public abstract class LongConversionUtil {

    /**
     * Do not instantiate.
     */
    protected LongConversionUtil() {
    }

import org.eclipse.aether.graph.DependencyFilter;
import org.eclipse.aether.repository.RemoteRepository;

/**
 * Caches plugin class realms. <strong>Warning:</strong> This is an internal utility interface that is only public for
 * technical reasons, it is not part of the public API. In particular, this interface can be changed or deleted without
 * prior notice.
 *
 */
public interface PluginRealmCache {
    /**

package jcifs.util;

import java.util.regex.Pattern;

/**
 * Comprehensive input validation utility for SMB protocol implementation.
 * Provides validation methods to prevent buffer overflows, injection attacks,
 * and other security vulnerabilities.
 */
public final class InputValidator {

    private InputValidator() {
        // Utility class
    }

    // Maximum sizes for various SMB fields (based on protocol specifications)

Le nom le plus proche serait `item_query`.

Mais vous avez vraiment envie que ce soit exactement `item-query`...

Pour cela vous pouvez déclarer un `alias`, et cet alias est ce qui sera utilisé pour trouver la valeur du paramètre :

{* ../../docs_src/query_params_str_validations/tutorial009.py hl[9] *}

## Déprécier des paramètres

Disons que vous ne vouliez plus utiliser ce paramètre désormais.