if (packageDir.exists()) {
            traverseFileSystem(packageDir, rootPackage, handler);
        }
    }

    /**
     * Traverses classes contained in a Jar file.
     * <p>
     * If the specified Jar file has the extension <code>.war</code>, only entries whose path starts with the prefix <code>WEB-INF/classes</code> are traversed.

    }

    /**
     * Returns true if the string ends with the specified substring, ignoring case.
     *
     * @param target1
     *            the text to check
     * @param target2
     *            the substring to compare
     * @return {@literal true} if the string ends with the specified substring, ignoring case
     */

     *
     * @param rule the rule to be added
     */
    void addRule(Rule rule);

    /**
     * Adds a rule to the specified index.
     *
     * @param index the position at which the rule should be added
     * @param rule the rule to be added
     */
    /**
     * Adds a rule to the specified index.
     *
     * @param index the position at which the rule should be added
     * @param rule the rule to be added
     */

    /**
     * Wrap the specified root object, allowing the specified expression prefix.
     * @param prefix the prefix.
     * @param root the root of the graph.
     */
    public PrefixedObjectValueSource(String prefix, Object root) {
        super(new PrefixedValueSourceWrapper(new ObjectBasedValueSource(root), prefix));
    }

    /**
     * Wrap the specified root object, allowing the specified list of expression

     * @param versionRange The version range to match the current Maven runtime against, must not be {@code null}.
     * @return {@code true} if the current Maven runtime matches the specified version range, {@code false} otherwise.
     * @throws IllegalArgumentException If the specified version range is {@code null}, empty or otherwise not a valid
     *             version specification.
     */
    boolean isMavenVersion(String versionRange);

    /**
     * Constructs a new RobotsTxtException with the specified detail message and cause.
     * @param message the detail message
     * @param cause the cause of the exception
     */
    public RobotsTxtException(final String message, final Throwable cause) {
        super(message, cause);
    }

    /**
     * Constructs a new RobotsTxtException with the specified detail message.
     * @param message the detail message
     */

 */
public class SearchEngineClientException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new SearchEngineClientException with the specified message and cause.
     *
     * @param message the detail message explaining the exception
     * @param cause   the underlying cause of the exception
     */

    /**
     * Constructs a new JobProcessingException with the specified cause.
     *
     * @param e the cause of the exception
     */
    public JobProcessingException(final Throwable e) {
        super(e);
    }

    /**
     * Constructs a new JobProcessingException with the specified detail message and cause.
     *
     * @param message the detail message explaining the exception

    }

    /**
     * Creates a new MimeTypeException with the specified detail message.
     *
     * @param message the detail message explaining the reason for the exception
     */
    public MimeTypeException(final String message) {
        super(message);
    }

    /**
     * Creates a new MimeTypeException with the specified cause.
     *
     * @param cause the underlying cause of the exception
     */

		return "crypto: cause <nil>"
	}
	return e.msg
}

var (
	// ErrInvalidEncryptionMethod indicates that the specified SSE encryption method
	// is not supported.
	ErrInvalidEncryptionMethod = Errorf("The encryption method is not supported")

	// ErrInvalidCustomerAlgorithm indicates that the specified SSE-C algorithm
	// is not supported.
	ErrInvalidCustomerAlgorithm = Errorf("The SSE-C algorithm is not supported")