} catch (SimpleCircuitBreaker.CircuitBreakerOpenException e) {
            // Log circuit breaker rejection
            auditLogger.logSecurityViolation("Circuit breaker open for SMB connection",
                    java.util.Map.of("address", address.getHostAddress(), "port", String.valueOf(port)));
            throw new IOException("Connection rejected by circuit breaker: " + e.getMessage(), e);
        } catch (RuntimeException e) {