/**
 * Trans2 QueryFSInformation response message for file system information queries.
 * This class handles the response from a TRANS2_QUERY_FS_INFORMATION request,
 * returning various file system information levels such as volume size and attributes.
 */
public class Trans2QueryFSInformationResponse extends SmbComTransactionResponse {

    private final int informationLevel;
    private FileSystemInformation info;

    /**

 * with proper error context and recovery information.
 */
public class SmbException extends CIFSException {

    private static final long serialVersionUID = 1L;

    /**
     * Error severity levels
     */
    public enum Severity {
        RECOVERABLE, // Can retry the operation
        TRANSIENT, // Temporary error, retry after delay
        PERMANENT, // Operation cannot succeed

        // Stack trace should be empty
        assertEquals(0, exception.getStackTrace().length);
    }

    public void test_exceptionChaining() {
        // Test exception chaining with multiple levels
        Exception rootCause = new Exception("Root cause");
        RuntimeException middleCause = new RuntimeException("Middle cause", rootCause);

    logger: String,
    tag: String,
  ) {
    val logger = Logger.getLogger(logger)
    if (configuredLoggers.add(logger)) {
      logger.useParentHandlers = false
      // log based on levels at startup to avoid logging each frame
      logger.level =
        when {
          Log.isLoggable(tag, Log.DEBUG) -> Level.FINE
          Log.isLoggable(tag, Log.INFO) -> Level.INFO
          else -> Level.WARNING

     * Gets the severity level of this problem.
     *
     * @return the severity level of this problem, never {@code null}
     */
    @Nonnull
    Severity getSeverity();

    /**
     * The different severity levels for a problem, in decreasing order.
     *
     * @since 4.0.0
     */
    @Experimental
    enum Severity {
        FATAL, //
        ERROR, //
        WARNING //
    }

/**
 * Trans2 QueryPathInformation response message for file metadata queries.
 * This class handles the response from a TRANS2_QUERY_PATH_INFORMATION request,
 * returning various file information levels based on the requested information level.
 */
public class Trans2QueryPathInformationResponse extends SmbComTransactionResponse {

    private final int informationLevel;
    private FileInformation info;

    /**

        return problemsReportedFor(BuilderProblem.Severity.values());
    }

    /**
     * Returns count of problems reported for given severities.
     *
     * @param severities the severity levels to count problems for
     * @return the total count of problems for the specified severities
     */
    int problemsReportedFor(BuilderProblem.Severity... severities);

    /**

        byte[] challenge = { 1, 2, 3, 4, 5, 6, 7, 8 };
        byte[] hash = auth.getAnsiHash(challenge);
        assertNotNull(hash);
        // getAnsiHash always returns 24 bytes for all lmCompatibility levels
        // (getPreNTLMResponse, getNTLMResponse, or getLMv2Response all return 24 bytes)
        assertEquals(24, hash.length);
    }

    // Test getUnicodeHash behavior based on static LM_COMPATIBILITY setting

## **FastAPI**'s `OAuth2PasswordBearer` { #fastapis-oauth2passwordbearer }

**FastAPI** provides several tools, at different levels of abstraction, to implement these security features.

In this example we are going to use **OAuth2**, with the **Password** flow, using a **Bearer** token. We do that using the `OAuth2PasswordBearer` class.

/// info

        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_exceptionChaining() {
        // Test exception chaining with multiple levels
        Exception rootCause = new Exception("Network timeout");
        Exception middleCause = new Exception("SSO provider unreachable", rootCause);