userResponse: Response,
    exchange: Exchange?,
  ): Request? {
    val route = exchange?.connection?.route()
    val responseCode = userResponse.code

    val method = userResponse.request.method
    when (responseCode) {
      HTTP_PROXY_AUTH -> {
        val selectedProxy = route!!.proxy
        if (selectedProxy.type() != Proxy.Type.HTTP) {

As code duplication increments the chances of bugs, security issues, code desynchronization issues (when you update in one place but not in the others), etc.

And these models are all sharing a lot of the data and duplicating attribute names and types.

We could do better.

We can declare a `UserBase` model that serves as a base for our other models. And then we can make subclasses of that model that inherit its attributes (type declarations, validation, etc).

  override fun isSupported(): Boolean = isSupported

  override fun getSelectedProtocol(sslSocket: SSLSocket): String? {
    val s = sslSocket as BCSSLSocket

    return when (val protocol = s.applicationProtocol) {
      null, "" -> null
      else -> protocol
    }
  }

  override fun configureTlsExtensions(
    sslSocket: SSLSocket,
    hostname: String?,

    /**
     * Gets the type of this pipe.
     *
     * @return the type of the pipe
     */
    int getPipeType();

    /**
     * Create a pipe handle
     *
     * @return pipe handle, needs to be closed when finished
     */
    SmbPipeHandle openPipe();

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.smb;

import jcifs.CIFSException;

/**
 * Exception thrown when an SMB protocol downgrade attack is detected.
 * Indicates that the negotiated protocol version is lower than expected or required.
 *
 * @author mbechler
 *
 */

 */
package jcifs.util.transport;

import jcifs.CIFSException;

/**
 * Exception class for transport layer errors.
 * This exception is thrown when transport-related communication errors occur.
 */
public class TransportException extends CIFSException {

    /**
     *
     */
    private static final long serialVersionUID = 3743631204022885618L;

    /**

    @ValidateTypeFailure
    public Integer sortOrder;

    /** The username of who created this duplicate host entry */
    @Size(max = 1000)
    public String createdBy;

    /** The timestamp when this duplicate host entry was created */
    @ValidateTypeFailure
    public Long createdTime;

    /**
     * Initializes the form with default values for creating a new duplicate host entry.
     */

     * Used for audit trail purposes to track who made changes.
     */
    @Size(max = 1000)
    public String updatedBy;

    /**
     * The timestamp when this duplicate host configuration was last updated.
     * Stored as a long value representing milliseconds since epoch.
     * Used for audit trail and concurrency control.
     */
    @ValidateTypeFailure

    @ValidateTypeFailure
    public Integer sortOrder;

    /**
     * The username who created this path mapping.
     */
    @Size(max = 1000)
    public String createdBy;

    /**
     * The timestamp when this path mapping was created.
     */
    @ValidateTypeFailure
    public Long createdTime;

    /**
     * The user agent string for this path mapping.
     */
    @Size(max = 1000)

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.exception;

/**
 * System exception class for the Fess search engine.
 * This exception is thrown when system-level errors occur in the Fess application,
 * such as configuration errors, initialization failures, or critical runtime issues.
 */
public class FessSystemException extends RuntimeException {