assertThrows(Exception.class, () -> {
            updateMethod.invoke(transport, testData);
        });

        // Verify hash was reset
        Method resetMethod = findMethod(transport.getClass(), "resetPreauthHash");
        if (resetMethod != null) {
            // Verify the reset method exists
            assertNotNull(resetMethod);
        }
    }

    /**

                resetPreauthHash();
                throw new CIFSException("Pre-authentication integrity hash update failed", e);
            }
        }
    }

    /**
     * Reset the pre-authentication integrity hash to initial state.
     * This should be called on negotiation failures or security errors.
     */
    private void resetPreauthHash() {