/// note | Nota

Django REST Framework fue creado por Tom Christie. El mismo creador de Starlette y Uvicorn, en los cuales **FastAPI** está basado.

///

/// check | Inspiró a **FastAPI** a

Tener una interfaz de usuario web de documentación automática de APIs.

///

### <a href="https://flask.palletsprojects.com" class="external-link" target="_blank">Flask</a> { #flask }

/// note | Nota

Django REST Framework foi criado por Tom Christie. O mesmo criador de Starlette e Uvicorn, nos quais **FastAPI** é baseado.

///

/// check | **FastAPI** inspirado para

Ter uma interface web de documentação automática da API.

///

### <a href="https://flask.palletsprojects.com" class="external-link" target="_blank">Flask</a> { #flask }

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package http

import (
	"context"
	"net"
	"syscall"
	"time"
)

// CheckPortAvailability - check if given host and port is already in use.
// Note: The check method tries to listen on given port and closes it.
// It is possible to have a disconnected client in this tiny window of time.
func CheckPortAvailability(host, port string, opts TCPOptions) (err error) {

    private Smb2LeaseState() {
        // Utility class
    }

    /**
     * Check if state has read caching
     * @param state lease state
     * @return true if read caching is enabled
     */
    public static boolean hasReadCaching(int state) {
        return (state & SMB2_LEASE_READ_CACHING) != 0;
    }

    /**
     * Check if state has handle caching
     * @param state lease state

   */
  private fun assertWildcardRule(rule: String) {
    check(rule.startsWith(WILDCARD_CHAR)) {
      """Wildcard Assertion Failure: '$rule'
A wildcard rule was added with a wildcard that is not in leftmost position! We'll need to change the ${PublicSuffixDatabase::class.java.name} to handle this."""
    }
    check(rule.indexOf(WILDCARD_CHAR, 1) == -1) {
      """Wildcard Assertion Failure: '$rule'

    Entry<Cut<K>, RangeMapEntry<K, V>> lastEntry = entriesByLowerBound.lastEntry();
    // Either both are null or neither is, but we check both to satisfy the nullness checker.
    if (firstEntry == null || lastEntry == null) {
      throw new NoSuchElementException();
    }
    return Range.create(

        if (!osddFile.isFile()) {
            logger.warn("OSDD path is not a file: {}", path);
            return null;
        }
        return osddFile;
    }

    /**
     * Checks if OSDD link is enabled.
     *
     * @return true if OSDD link is enabled
     */
    protected boolean isOsddLinkEnabled() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

    public String getOutput() {
        return output;
    }

    /**
     * Checks if the item has been updated.
     *
     * @return true if the item has been updated, false otherwise.
     */
    public boolean isUpdated() {
        return newInput != null && newOutput != null;
    }

    /**
     * Checks if the item has been marked for deletion.
     *

### Exception Handling
```java
import org.codelibs.core.exception.*;

// Runtime exception wrappers eliminate try-catch boilerplate
try {
    // Code that might throw checked exceptions
    return ClassUtil.newInstance(className); // Wraps checked exceptions automatically
} catch (ClassNotFoundRuntimeException e) {
    // Handle the wrapped exception
    logger.error("Class not found: " + className, e);
}
```

        }
    }

    /**
     * Check if this exception is retryable
     *
     * @return true if the operation can be retried
     */
    public boolean isRetryable() {
        return errorCode.isRetryable() && retryPolicy != RetryPolicy.NO_RETRY;
    }

    /**
     * Check if retry should be attempted
     *
     * @param attemptNumber the current attempt number