This can be very useful for setting up **resources** that you need to use for the whole app, and that are **shared** among requests, and/or that you need to **clean up** afterwards. For example, a database connection pool, or loading a shared machine learning model.

## Use Case { #use-case }

  }

  /**
   * Returns {@code true} if the provided keys are among the keys provided when the table was
   * constructed.
   */
  @Override
  public boolean contains(@Nullable Object rowKey, @Nullable Object columnKey) {
    return containsRow(rowKey) && containsColumn(columnKey);
  }

  /**
   * Returns {@code true} if the provided column key is among the column keys provided when the
   * table was constructed.
   */

The special key `default` indicates a Go version to take unspecified
settings from. This allows setting the GODEBUG defaults separately
from the Go language version in the module.
In this example, the program is asking for Go 1.21 semantics and
then asking for the old pre-Go 1.21 `panic(nil)` behavior and the
new Go 1.23 `asynctimerchan=0` behavior.

Only the work module's `go.mod` is consulted for `godebug` directives.

 *
 * @since 4.0.0
 */
@Experimental
public enum JavaPathType implements PathType {
    /**
     * The path identified by the Java {@code --class-path} option.
     * Used for compilation, execution and Javadoc among others.
     * The Java tools location is {@link StandardLocation#CLASS_PATH}.
     *
     * <h4>Context-sensitive interpretation</h4>
     * A dependency with this path type will not necessarily be placed on the class path.

        };
    }

    /**
     * Serializes an object using Kryo serialization.
     * <p>
     * Uses the thread-local Kryo instance to serialize the object along with
     * its class information. The serialized data is written to a byte array
     * output stream.
     * </p>
     *
     * @param obj the object to serialize

     */
    public PermissionHelper() {
        // Default constructor
    }

    /**
     * Encodes a permission string into a search role format.
     * Processes user, group, and role prefixes along with allow/deny prefixes.
     *
     * @param value the permission string to encode
     * @return the encoded permission string, or null if the input is blank or invalid
     */
    public String encode(final String value) {

```Python
from starlette.exceptions import HTTPException as StarletteHTTPException
```

### Reuse **FastAPI**'s exception handlers { #reuse-fastapis-exception-handlers }

If you want to use the exception along with the same default exception handlers from  **FastAPI**, you can import and reuse the default exception handlers from `fastapi.exception_handlers`:

{* ../../docs_src/handling_errors/tutorial006_py39.py hl[2:5,15,21] *}

If you have multiple changes to accept (and you're sure they ought to be accepted instead of corrected), you can use the `Accept Changes for all Errors` button to speed the process.
This button will cause a Javascript alert dialog to appear asking you to type a reason for accepting the changes, e.g. "Added new API for Gradle 8.x".

Clicking okay on the dialog will cause a copy of the `accepted-public-api-changes.json` containing your (properly sorted) addition to be downloaded.

                    //
                    // At this point the DefaultModelBuildingListener has fired, and it populates the
                    // remote repositories with those found in the pom.xml, along with the existing externally
                    // defined repositories.
                    //
                    // Compute merged repositories for this project and store in session

      ImmutableSet<?> untypedResult = ImmutableEnumSet.asImmutable(clone);
      /*
       * The result has the same type argument we started with. We just couldn't express EnumSet<E>
       * or ImmutableEnumSet<E> along the way because our own <E> isn't <E extends Enum<E>>.
       *
       * We are also performing a safe covariant cast to change <? extends E> to <E>.
       */
      @SuppressWarnings("unchecked")