assertEquals(0, exception.getErrorCode(), "Error code should be 0 for message and cause constructor.");
        assertEquals(message, exception.getMessage(), "Message should match the input.");
        assertEquals(cause, exception.getCause(), "Cause should match the input.");
        assertEquals(cause, exception.getRootCause(), "getRootCause() should return the same cause as getCause().");
    }

    /**

    /**
     * Constructs a new SsoLoginException with the specified detail message and cause.
     *
     * @param message The detail message explaining the SSO login failure
     * @param cause The underlying exception that caused this SSO login failure
     */
    public SsoLoginException(final String message, final Throwable cause) {
        super(message, cause);
    }

        // Test constructor with message and cause
        String message = "Command execution failed with error";
        Throwable cause = new IllegalStateException("Invalid state");
        CommandExecutionException exception = new CommandExecutionException(message, cause);

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());

Y `Field` de Pydantic también regresa una instance de `FieldInfo`.

`Body` también devuelve objetos de una subclase de `FieldInfo` directamente. Y hay otros que verás más adelante que son subclases de la clase `Body`.

 */
@Deprecated(since = "4.0.0")
public class ToolchainsBuildingException extends Exception {

    private final List<Problem> problems;

    /**
     * Creates a new exception with the specified problems.
     *
     * @param problems The problems that cause this exception, must not be {@code null}.
     */
    public ToolchainsBuildingException(List<Problem> problems) {

    }

    /**
     * Creates a resource exception with cause
     *
     * @param message the error message
     * @param errorCode the SMB error code
     * @param resourceType the type of resource
     * @param cause the cause exception
     */
    public SmbResourceException(String message, int errorCode, ResourceType resourceType, Throwable cause) {

            if (e != null) {
                logger.error(e.getMessage());

                for (Throwable cause = e.getCause();
                        cause != null && cause != cause.getCause();
                        cause = cause.getCause()) {
                    logger.error("Caused by: {}", cause.getMessage());
                }
            }
        }
    }

/**
 * Exception which occurs when a normal (i.e. non-aggregator) mojo fails to
 * execute. In this case, the mojo failed while executing against a particular
 * project instance, so we can wrap the {@link MojoFailureException} with context
 * information including projectId that caused the failure.
 *
 *
 */
public class ProjectBuildFailureException extends BuildFailureException {

    private final String projectId;

        void testGetRootCause() {
            Exception rootCause = new IllegalStateException("Test root cause");
            TransportException exception = new TransportException("Message", rootCause);

            assertEquals(rootCause, exception.getRootCause());
        }

        @Test
        @DisplayName("Should return null when no root cause")
        void testGetRootCauseWhenNull() {

### Clases como tipos { #classes-as-types }

También puedes declarar una clase como el tipo de una variable.

Digamos que tienes una clase `Person`, con un nombre:

{* ../../docs_src/python_types/tutorial010_py310.py hl[1:3] *}