executor.shutdown();

        // Then - Verify no exceptions occurred
        if (!exceptions.isEmpty()) {
            fail("Concurrent operations caused exceptions: " + exceptions.get(0));
        }

        assertEquals(threadCount * opsPerThread, successCount.get(), "All operations should succeed");
    }

    /**
     * Test that session release with double-check pattern prevents race conditions.
     */
    @Test

# Background Tasks { #background-tasks }

You can define background tasks to be run *after* returning a response.

This is useful for operations that need to happen after a request, but that the client doesn't really have to be waiting for the operation to complete before receiving the response.

This includes, for example:

* Email notifications sent after performing an action:

## Combine predefined responses and custom ones { #combine-predefined-responses-and-custom-ones }

You might want to have some predefined responses that apply to many *path operations*, but you want to combine them with custom responses needed by each *path operation*.

For those cases, you can use the Python technique of "unpacking" a `dict` with `**dict_to_unpack`:

```Python
old_dict = {
    "old key": "old value",

In the example below, **FastAPI** will use `ORJSONResponse` by default, in all *path operations*, instead of `JSONResponse`.

{* ../../docs_src/custom_response/tutorial010.py hl[2,4] *}

/// tip

You can still override `response_class` in *path operations* as before.

///

## Additional documentation { #additional-documentation }

import jakarta.annotation.Resource;

/**
 * Service class that manages crawling information and parameters.
 * This service provides CRUD operations for crawling sessions and their associated parameters,
 * including session management, cleanup operations, and CSV import/export functionality.
 */
public class CrawlingInfoService {

    private static final Logger logger = LogManager.getLogger(CrawlingInfoService.class);

import org.jspecify.annotations.NullMarked;

/**
 * An object that can perform a {@link #tearDown} operation.
 *
 * @author Kevin Bourrillion
 * @since 10.0
 */
@GwtCompatible
@NullMarked
public interface TearDown {
  /**
   * Performs a <b>single</b> tear-down operation. See test-libraries-for-java's {@code
   * com.google.common.testing.junit3.TearDownTestCase} and {@code

    // ============================================================

    /** Process type for replace operations. */
    public static final String PROCESS_TYPE_REPLACE = "R";

    /** Process type for crawling operations. */
    public static final String PROCESS_TYPE_CRAWLING = "C";

    /** Process type for displaying operations. */
    public static final String PROCESS_TYPE_DISPLAYING = "D";

 * entries may be counted in {@link Cache#size}, but will never be visible to read or write
 * operations.
 *
 * <p>Certain cache configurations will result in the accrual of periodic maintenance tasks which
 * will be performed during write operations, or during occasional read operations in the absence of
 * writes. The {@link Cache#cleanUp} method of the returned cache will also perform maintenance, but

package jcifs.smb;

/**
 * Windows error codes used in SMB protocol operations.
 * These constants represent standard Windows error codes returned by SMB servers.
 */
public interface WinError {

    /*
     * Don't bother to edit this. Everything within the interface
     * block is automatically generated from the ntstatus package.
     */

    /** The operation completed successfully */
    int ERROR_SUCCESS = 0;

package jcifs.smb1.smb1;

/**
 * Windows error codes used in SMB protocol operations.
 * These constants represent standard Windows error codes returned by SMB servers.
 */
public interface WinError {

    /* Don't bother to edit this. Everthing within the interface
     * block is automatically generated from the ntstatus package.
     */

    /** The operation completed successfully */
    int ERROR_SUCCESS = 0;