assertTrue("Set-based lookup should complete quickly (duration: " + duration / 1_000_000 + "ms)", duration < 1_000_000_000); // 1 second (relaxed from 100ms for CI)
    }

    /**
     * Test convertWithFieldCheck() with DEFAULT_FIELD.
     */
    @Test
    public void test_convertWithFieldCheck_withDefaultField() {

labels.facet_contentLength_10k=  - 10KB
labels.facet_contentLength_10kto100k=10KB - 100KB
labels.facet_contentLength_100kto500k=100KB - 500KB
labels.facet_contentLength_500kto1m=500KB - 1MB
labels.facet_contentLength_1m=1MB -  
labels.facet_contentLength_10kto50k=10KB - 50KB
labels.facet_contentLength_50kto100k=50KB - 100KB
labels.facet_contentLength_100kto250k=100KB - 250KB
labels.facet_contentLength_250kto500k=250KB - 500KB

labels.facet_contentLength_10k=  - 10KB
labels.facet_contentLength_10kto100k=10KB - 100KB
labels.facet_contentLength_100kto500k=100KB - 500KB
labels.facet_contentLength_500kto1m=500KB - 1MB
labels.facet_contentLength_1m=1MB -  
labels.facet_contentLength_10kto50k=10KB - 50KB
labels.facet_contentLength_50kto100k=50KB - 100KB
labels.facet_contentLength_100kto250k=100KB - 250KB
labels.facet_contentLength_250kto500k=250KB - 500KB

    /**
     * Reads the contents of a file into a byte array and returns it.
     * <p>
     * <strong>Note:</strong> This method loads the entire file into memory.
     * For files larger than {@value #MAX_BUF_SIZE} bytes (10MB), an
     * {@link IORuntimeException} will be thrown to prevent OutOfMemoryError.
     * For large files, use streaming APIs instead.
     * </p>
     *
     * @param file

	xioutil "github.com/minio/minio/internal/ioutil"
	"github.com/minio/pkg/v3/mimedb"
	"github.com/pkg/sftp"
	"golang.org/x/crypto/ssh"
)

// Maximum write offset for incoming SFTP blocks.
// Set to 100MiB to prevent hostile DOS attacks.
const ftpMaxWriteOffset = 100 << 20

type sftpDriver struct {
	permissions *ssh.Permissions
	endpoint    string
	remoteIP    string
}

//msgp:ignore sftpMetrics

// Use streaming for large files
container.singleton("fileTransformer", FileTransformer.class, transformer -> {
    transformer.setMaxContentSize(10 * 1024 * 1024); // 10MB limit
});
```

## Troubleshooting

### Common Issues

#### Connection Timeouts
```java
// Increase timeout values
client.setConnectionTimeout(60000);  // 60 seconds

//
//	                  |  USTAR |       PAX |       GNU
//	------------------+--------+-----------+----------
//	Name              |   256B | unlimited | unlimited
//	Linkname          |   100B | unlimited | unlimited
//	Size              | uint33 | unlimited |    uint89
//	Mode              | uint21 |    uint21 |    uint57
//	Uid/Gid           | uint21 | unlimited |    uint57

labels.facet_contentLength_10k=  - 10KB
labels.facet_contentLength_10kto100k=10KB - 100KB
labels.facet_contentLength_100kto500k=100KB - 500KB
labels.facet_contentLength_500kto1m=500KB - 1MB
labels.facet_contentLength_1m=1MB -  
labels.facet_contentLength_10kto50k=10KB - 50KB
labels.facet_contentLength_50kto100k=50KB - 100KB
labels.facet_contentLength_100kto250k=100KB - 250KB
labels.facet_contentLength_250kto500k=250KB - 500KB

    
    SmbFile file = new SmbFile("smb://server/share/largefile.dat", context);
    
    // Measure RDMA transfer performance
    byte[] data = new byte[10485760];  // 10MB
    Arrays.fill(data, (byte)0x42);
    
    long start = System.currentTimeMillis();
    
    try (OutputStream os = file.getOutputStream()) {
        os.write(data);
    }
    

      call.execute()
    }
    val elapsedNanos = System.nanoTime() - startNanos
    org.junit.jupiter.api.Assertions.assertTrue(
      elapsedNanos < TimeUnit.SECONDS.toNanos(5),
      "Timeout should have taken ~100ms but was " + elapsedNanos / 1e6 + " ms",
    )
  }

  @Test
  fun chainWithReadTimeout() {
    val interceptor1 =
      Interceptor { chainA: Interceptor.Chain ->