```

If you communicate with that *path operation* sending two HTTP headers like:

```
X-Token: foo
X-Token: bar
```

The response would be like:

```JSON
{
    "X-Token values": [
        "bar",
        "foo"
    ]
}
```

## Recap

Declare headers with `Header`, using the same common pattern as `Query`, `Path` and `Cookie`.

 *
 * <p>This class is not intended as a direct analogue of any existing "option" or "maybe" construct
 * from other programming environments, though it may bear some similarities.
 *
 * <p>An instance of this class is serializable if its reference is absent or is a serializable
 * object.
 *

 *
 * <p>This class is not intended as a direct analogue of any existing "option" or "maybe" construct
 * from other programming environments, though it may bear some similarities.
 *
 * <p>An instance of this class is serializable if its reference is absent or is a serializable
 * object.
 *

bar...

/**
 * Unmarshals some textual configuration from the POM or similar into the properties of a bean. This component works
 * similar to the way Maven configures plugins from the POM, i.e. some configuration like {@code <param>value</param>}
 * is mapped to an equally named property of the bean and converted. The properties of the bean are supposed to either
 * have a public setter or be backed by an equally named field (of any visibility).
 *

            dest.put(destPropertyName, convertedValue);
        }
    }

    /**
     * コピー元のBeanを新しいBeanのインスタンスにコピーして返します。
     *
     * @param <T> コピー先となるBeanの型
     * @param src コピー元のBean。{@literal null}であってはいけません
     * @param destClass コピー先となるBeanの型。{@literal null}であってはいけません
     * @return コピーされた新しいBean
     */
    public static <T> T copyBeanToNewBean(final Object src, final Class<T> destClass) {

package org.apache.maven.configuration;

/**
 * Preprocesses a value from a bean configuration before the bean configurator unmarshals it into a bean property. A
 * common use case for such preprocessing is the evaluation of variables within the configuration value.
 *
 */
public interface BeanConfigurationValuePreprocessor {

    /**
     * Preprocesses the specified bean configuration value. The optional type provided to this method is a hint (not a

        MavenExecutionPlan plan = LifecycleExecutionPlanCalculatorStub.getProjectAExecutionPlan();

        ExecutionPlanItem expected = plan.findLastInPhase("package");
        ExecutionPlanItem beerPhase = plan.findLastInPhase("BEER"); // Beer comes straight after package in stub
        assertEquals(expected, beerPhase);
        assertNotNull(expected);
    }

    @Test
    void testThreadSafeMojos() throws Exception {

    private BeanConfigurationPathTranslator pathTranslator;

    public Object getBean() {
        return bean;
    }

    public DefaultBeanConfigurationRequest setBean(Object bean) {
        this.bean = bean;
        return this;
    }

    public Object getConfiguration() {
        return configuration;
    }

    public String getConfigurationElement() {

        SomeBean bean = new SomeBean();

        Xpp3Dom config = toConfig("<file>test</file>");

        DefaultBeanConfigurationRequest request = new DefaultBeanConfigurationRequest();
        request.setBean(bean).setConfiguration(config);

        configurator.configureBean(request);

        assertEquals(new File("test"), bean.file);
    }

    @Test