```

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`.

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).
 *

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 {

        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

    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() {

            }
            final Object bean = instantiateObject(implType);
            if (null == value) {
                processConfiguration(lookup, bean, loader, configuration, evaluator, listener);
            } else {
                new CompositeBeanHelper(lookup, loader, evaluator, listener).setDefault(bean, value, configuration);
            }
            return bean;
        } catch (final ComponentConfigurationException e) {

     * @return need to be online
     */
    boolean onlineRequired() default false;

    /**
     * TODO: v4: add a SPI for the configurator
     * configurator bean name.
     * @return the configurator bean name
     */
    @Nonnull
    String configurator() default "";

    #     Table names on SQL executed by condition-bean or behavior
    #     are forcedly treated as upper case. (except outside-SQL)
    #
    #; isTableSqlNameUpperCase = false
    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o isColumnSqlNameUpperCase: (NotRequired - Default false)
    #   [true]
    #     Column names on SQL executed by condition-bean or behavior