assertEquals("testuser", chain.lastChangePasswordUsername);
        assertEquals("newpass", chain.lastChangePasswordPassword);
    }

    // Test changePassword with single chain failure
    public void test_changePassword_singleChain_failure() {
        TestAuthenticationChain chain = new TestAuthenticationChain();
        chain.changePasswordResult = false;
        authenticationManager.addChain(chain);

        assertTrue(ex.getMessage().contains("Invalid kerberos request"));
    }

    @Test
    @DisplayName("seq ctor: unknown field tag causes failure")
    void sequenceConstructor_unknownField_throws() {
        // Arrange: only an unexpected tag is present
        ASN1EncodableVector v = new ASN1EncodableVector();

	// Call the ServeHTTP to execute the handler.
	apiRouter.ServeHTTP(rec, req)
	switch rec.Code {
	case http.StatusOK, http.StatusCreated, http.StatusAccepted, http.StatusNoContent:
		t.Fatalf("Test %v: expected failure, but succeeded with %v", instanceType, rec.Code)
	}

	// Verify response of the V2 signed HTTP request.
	// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.

   *    has since been closed by the server.
   *  * A client timeout (HTTP 408).
   *  * A authorization challenge (HTTP 401 and 407) that is satisfied by the [Authenticator].
   *  * A retryable server failure (HTTP 503 with a `Retry-After: 0` response header).
   *  * A misdirected request (HTTP 421) on a coalesced connection.
   */
  open fun isOneShot(): Boolean = false

  companion object {

	if algo != HighwayHash256S {
		h := algo.New()
		if n, err := io.Copy(h, r); err != nil || n != wantSize {
			// Premature failure in reading the object, file is corrupt.
			return errFileCorrupt
		}
		if !bytes.Equal(h.Sum(nil), want) {
			return errFileCorrupt
		}
		return nil
	}

	h := algo.New()

  final StandardSubjectBuilder expect =
      StandardSubjectBuilder.forCustomFailureStrategy(
          new FailureStrategy() {
            @Override
            public void fail(AssertionError failure) {
              failures.add(failure);
            }
          });

  final ListeningExecutorService executor = listeningDecorator(newSingleThreadExecutor());
  final ExecutorService closingExecutor = newSingleThreadExecutor();

                alternativeChannel.getTransport().send(op);
            } catch (Exception e) {
                log.error("Failed to redistribute operation", e);
                // Notify waiting threads of failure
                op.notifyError(e);
            }
        }
    }
    
    private void scheduleRecovery(ChannelInfo channel, FailoverState state) {
        state.incrementRetry();
        

            assertEquals(0x9ABC, testBlock.getUid());
            assertEquals(0xDEF0, testBlock.getMid());
        }

        @Test
        @DisplayName("Test decode with signature verification failure")
        void testDecodeWithSignatureFailure() {
            testBlock = new TestServerMessageBlock(mockConfig) {
                @Override
                public boolean verifySignature(byte[] buffer, int i, int size) {

            }
        }
        return urlSet;
    }

    /**
     * Processes the response data from a crawled URL, including failure handling.
     * This method extends the base response processing to handle Fess-specific failure
     * URL tracking when certain HTTP status codes are encountered.
     *
     * @param urlQueue the URL queue item that was processed

		t.Fatal(err)
	}

	_, owner, s3Err := checkKeyValid(req, globalActiveCred.AccessKey)
	if s3Err != ErrNone {
		t.Fatalf("Unexpected failure with %v", errorCodes.ToAPIErr(s3Err))
	}

	if !owner {
		t.Fatalf("Expected owner to be 'true', found %t", owner)
	}

	_, _, s3Err = checkKeyValid(req, "does-not-exist")
	if s3Err != ErrInvalidAccessKeyID {