// Non-critical failures - should NOT open circuit
            for (int i = 0; i < 5; i++) {
                try {
                    customCb.executeWithCircuitBreaker(() -> {
                        throw new RuntimeException("non-critical error");
                    }, isFailure);

        session.release();
    }

    /**
     * Performance regression test for all critical fixes
     */
    @Test
    public void testOverallPerformanceRegression() throws Exception {
        System.out.println("=== Critical Performance Fixes Validation ===");

        // Test multiple components together
        long start = System.nanoTime();

    }

    /**
     * Event severity levels
     */
    public enum Severity {
        INFO(0), WARNING(1), ERROR(2), CRITICAL(3);

        private final int level;

        Severity(int level) {
            this.level = level;
        }

        public int getLevel() {
            return level;
        }
    }

**DI**: LastaFlute container with `@Resource` and XML config

### Core Principles

**Thread Safety**:
- `AtomicLong` for counters (`CrawlerContext.accessCount`)
- `volatile` for status flags
- Synchronized blocks for critical sections
- Thread-local storage via `CrawlingParameterUtil`

**Resource Management**:
- `AutoCloseable` throughout
- `DeferredFileOutputStream` for large responses (temp files for >1MB)
- Connection pooling with limits

            log.trace("update: " + this.updates + " " + offset + ":" + len);
            log.trace(Hexdump.toHexString(input, offset, Math.min(len, 256)));
        }
        if (len == 0) {
            return; /* CRITICAL */
        }
        this.digest.update(input, offset, len);
        this.updates++;
    }

    /**
     * Finalize and return the calculated message digest
     *
     * @return calculated digest

                    }
                }
                masterKey = null;

                log.debug("SecureCredentialStorage destroyed");

                // If we had a non-critical destroy failure, throw it now
                if (failedToDestroy && destroyException != null) {
                    throw new DestroyFailedException("Partial destroy: " + destroyException.getMessage());
                }

                logger.debug("jwtSignature={}", jwtSignature);
            }

            // SECURITY WARNING: JWT signature validation is not implemented.
            // This is a critical security vulnerability. The ID token should be validated
            // to ensure it was issued by the expected OpenID Connect provider and has not been tampered with.

                bindingHash // Security buffer contains the binding information
        );

        // Set the session ID of the existing session
        request.setSessionId(getSessionId());

        // CRITICAL: Set the binding flag per MS-SMB2
        request.setSessionBinding(true);

        // The actual transport send would need proper integration

3. Click **Import**

**Via API**:
```bash
curl -X POST "http://localhost:8080/api/admin/backup/upload" \
  -u admin:admin \
  -F "file=@fess-config-backup.json"
```

### System Properties

Critical system settings in `system.properties`:

```properties
# GSA API compatibility
web.api.gsa=true

# JSON API
web.api.json=true

# Search page size
page.search.default.size=20

## 2. Protocol Specification Reference

- **MS-SWN**: Service Witness Protocol Specification
- **MS-SMB2 Section 3.2.4.24**: FSCTL_SRV_REQUEST_RESUME_KEY
- **MS-SMB2 Section 3.3.5.15.12**: Cluster Reconnect