*/
public abstract class DriverManagerUtil {

    /**
     * Do not instantiate.
     */
    protected DriverManagerUtil() {
    }

    /**
     * Registers a JDBC driver.
     *
     * @param driverClassName
     *            The class name of the JDBC driver to register. Must not be {@literal null} or an empty string.
     */
    public static void registerDriver(final String driverClassName) {

     *
     * @return the sequence number
     */
    public long getSequenceNumber() {
        return sequenceNumber;
    }

    /**
     * Sets the sequence number.
     *
     * @param sequenceNumber the sequence number
     */
    public void setSequenceNumber(long sequenceNumber) {
        this.sequenceNumber = sequenceNumber;
    }

    /**
     * Gets the return code.
     *

     * @return the error description
     */
    public String getError() {
        return error != null ? error : "Error code: " + returnCode;
    }

    /**
     * Sets the error message.
     *
     * @param error the error message
     */
    public void setError(String error) {
        this.error = error;
    }

    /**
     * Gets the registration ID.
     *
     * @return the registration ID
     */

    }

    /**
     * Constructor that may alter behaviour of this listener.
     *
     * @param delegate The delegate that should run on single thread.
     * @param queueSize The event queue size (default {@code 1024}).
     * @param batchMaxSize The maximum batch size delegate should receive (default {@code 500}).
     * @param blockOnLastEvent Should this listener block on last transfer end (completed or corrupted) block? (default {@code true}).

    /**
     * Creates a new {@link BeanFieldSetAccessibleFailureException} with the specified cause.
     *
     * @param componentClass
     *            the component class
     * @param targetField
     *            the target field
     * @param cause
     *            the cause
     */

    /**
     * Creates a new {@link BeanMethodSetAccessibleFailureException} with the specified cause.
     *
     * @param componentClass
     *            the component class
     * @param targetMethod
     *            the target method
     * @param cause
     *            the cause
     */

from fastapi import FastAPI
from fastapi.params import Param
from fastapi.testclient import TestClient

app = FastAPI()


@app.get("/items/")
def read_items(q: str | None = Param(default=None)):  # type: ignore
    return {"q": q}


client = TestClient(app)


def test_default_param_query_none():
    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == {"q": None}

                "Unknown q: " + query.getClass() + " => " + query);
    }

    /**
     * Converts a Lucene BooleanQuery to an OpenSearch BoolQueryBuilder.
     * @param context The query context.
     * @param booleanQuery The boolean query to convert.
     * @param boost The boost factor to apply.
     * @return The converted BoolQueryBuilder.
     */

    /**
     * Constructs a DcerpcException with the specified message
     *
     * @param msg the error message
     */
    public DcerpcException(final String msg) {
        super(msg);
    }

    /**
     * Constructs a DcerpcException with the specified message and root cause
     *
     * @param msg the error message
     * @param rootCause the underlying cause of this exception
     */

     *
     * @param project The project to get the build summary for, must not be {@code null}.
     * @return The build summary for the project or {@code null} if the project has not been built (yet).
     */
    BuildSummary getBuildSummary(MavenProject project);

    /**
     * Add the specified build summary.
     *
     * @param summary The build summary to add, must not be {@code null}.
     */