{* ../../docs_src/background_tasks/tutorial001.py hl[14] *}

`.add_task()` erhält als Argumente:

* Eine Taskfunktion, die im Hintergrund ausgeführt wird (`write_notification`).
* Eine beliebige Folge von Argumenten, die der Reihe nach an die Taskfunktion übergeben werden sollen (`email`).
* Alle Schlüsselwort-Argumente, die an die Taskfunktion übergeben werden sollen (`message="some notification"`).

## Dependency Injection

     */
    @SuppressWarnings("static-access")
    @Test
    public void testFormat() {
        exception.expect(ClIllegalArgumentException.class);
        exception.expectMessage(is("[ECL0009]argument[AUTL0009] is illegal. because messageCode : AUTL0009."));
        Logger.format("AUTL0009", "hoge");
    }

## `dependencies` zum *Pfadoperation-Dekorator* hinzufügen

Der *Pfadoperation-Dekorator* erhält ein optionales Argument `dependencies`.

Es sollte eine `list`e von `Depends()` sein:

{* ../../docs_src/dependencies/tutorial006_an_py39.py hl[19] *}

So, the function below it will be executed once for each combination of arguments. And then the values returned by each of those combinations of arguments will be used again and again whenever the function is called with exactly the same combination of arguments.

For example, if you have a function:

```Python
@lru_cache
def say_hi(name: str, salutation: str = "Ms."):

        OsProbe.getInstance();
        JvmInfo.jvmInfo();
    }

    /**
     * Main entry point for the thumbnail generator application.
     *
     * @param args command-line arguments
     */
    public static void main(final String[] args) {
        final Options options = new Options();

        final CmdLineParser parser = new CmdLineParser(options);
        try {

        exception.expectMessage(is("[ECL0008]argument[src] is null."));
        BeanUtil.copyMapToBean(null, new Object());
    }

    /**
     *
     */
    @Test
    public void testCopyBeanToMap_DestNull() {
        exception.expect(NullArgumentException.class);
        exception.expectMessage(is("[ECL0008]argument[dest] is null."));
        BeanUtil.copyBeanToMap(new Object(), null);
    }

    return 3;
  }

  // TODO: Consolidate different copies in one single place.
  static String format(String template, Object... args) {
    // start substituting the arguments into the '%s' placeholders
    StringBuilder builder = new StringBuilder(template.length() + 16 * args.length);
    int templateStart = 0;
    int i = 0;
    while (i < args.length) {

     * @param args
     *            the method arguments
     * @return the result of the method
     */
    <T> T invoke(Object target, Object... args);

    /**
     * Invokes a static method and returns its result.
     *
     * @param <T>
     *            the return type of the method
     * @param args
     *            the method arguments
     * @return the result of the method
     */

    /** Array of method parameter types */
    protected final Class<?>[] parameterTypes;

    /** The return type of the method */
    protected final Class<?> returnType;

    /** Information about parameterized argument types */
    protected final ParameterizedClassDesc[] parameterizedClassDescs;

    /** Information about the parameterized return type */
    protected final ParameterizedClassDesc parameterizedClassDesc;

    /**

                throw new IllegalArgumentException("Invalid argument provided");
            }
        };
        ComponentUtil.register(searchEngineClient, "searchEngineClient");

        // Execute the job
        String result = purgeDocJob.execute();

        // Assert error message is in the result
        assertTrue(result.contains("Invalid argument provided"));
    }