Java Code Examples for org.springframework.context.annotation.AnnotationConfigUtils#registerAnnotationConfigProcessors()

@Test
public void testAutowiredConstructorArgumentResolvesQualifiedCandidate() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	person1.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedConstructorArgumentTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	context.refresh();
	QualifiedConstructorArgumentTestBean bean =
			(QualifiedConstructorArgumentTestBean) context.getBean("autowired");
	assertEquals(JUERGEN, bean.getPerson().getName());
}
 

@Test
public void testAutowiredFieldWithMultipleNonQualifiedCandidates() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedFieldTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	try {
		context.refresh();
		fail("expected BeanCreationException");
	}
	catch (BeanCreationException e) {
		assertTrue(e.getRootCause() instanceof NoSuchBeanDefinitionException);
		assertEquals("autowired", e.getBeanName());
	}
}
 

@Test
public void autowiredMethodParameterResolvesQualifiedCandidate() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	person1.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedMethodParameterTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	context.refresh();
	QualifiedMethodParameterTestBean bean =
			(QualifiedMethodParameterTestBean) context.getBean("autowired");
	assertEquals(JUERGEN, bean.getPerson().getName());
}
 

@Test
public void autowiredFieldResolvesMetaQualifiedCandidate() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	person1.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(MetaQualifiedFieldTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	context.refresh();
	MetaQualifiedFieldTestBean bean = (MetaQualifiedFieldTestBean) context.getBean("autowired");
	assertEquals(JUERGEN, bean.getPerson().getName());
}
 

@Test
public void testAutowiredConstructorArgumentWithSingleNonQualifiedCandidate() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs = new ConstructorArgumentValues();
	cavs.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person = new RootBeanDefinition(Person.class, cavs, null);
	context.registerBeanDefinition(JUERGEN, person);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedConstructorArgumentTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	try {
		context.refresh();
		fail("expected BeanCreationException");
	}
	catch (BeanCreationException e) {
		assertTrue(e instanceof UnsatisfiedDependencyException);
		assertEquals("autowired", e.getBeanName());
	}
}
 

@Test
public void autowiredConstructorArgumentWithMultipleNonQualifiedCandidates() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedConstructorArgumentTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	try {
		context.refresh();
		fail("expected BeanCreationException");
	}
	catch (BeanCreationException e) {
		assertTrue(e instanceof UnsatisfiedDependencyException);
		assertEquals("autowired", e.getBeanName());
	}
}
 

@Test
public void testAutowiredConstructorArgumentResolvesQualifiedCandidate() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	person1.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedConstructorArgumentTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	context.refresh();
	QualifiedConstructorArgumentTestBean bean =
			(QualifiedConstructorArgumentTestBean) context.getBean("autowired");
	assertEquals(JUERGEN, bean.getPerson().getName());
}
 

@Test
public void testAutowiredConstructorArgumentWithSingleNonQualifiedCandidate() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs = new ConstructorArgumentValues();
	cavs.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person = new RootBeanDefinition(Person.class, cavs, null);
	context.registerBeanDefinition(JUERGEN, person);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedConstructorArgumentTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	try {
		context.refresh();
		fail("expected BeanCreationException");
	}
	catch (BeanCreationException e) {
		assertTrue(e instanceof UnsatisfiedDependencyException);
		assertEquals("autowired", e.getBeanName());
	}
}
 

@Test
public void autowiredFieldResolvesWithDefaultValueAndExplicitDefaultValueOnBeanDefinition() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	// qualifier added, and value matches the default
	person1.addQualifier(new AutowireCandidateQualifier(TestQualifierWithDefaultValue.class, "default"));
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedFieldWithDefaultValueTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	context.refresh();
	QualifiedFieldWithDefaultValueTestBean bean =
			(QualifiedFieldWithDefaultValueTestBean) context.getBean("autowired");
	assertEquals(JUERGEN, bean.getPerson().getName());
}
 

@Test
public void autowiredFieldResolvesWithBaseQualifierAndDefaultValue() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	person2.addQualifier(new AutowireCandidateQualifier(Qualifier.class));
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedFieldWithBaseQualifierDefaultValueTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	context.refresh();
	QualifiedFieldWithBaseQualifierDefaultValueTestBean bean =
			(QualifiedFieldWithBaseQualifierDefaultValueTestBean) context.getBean("autowired");
	assertEquals(MARK, bean.getPerson().getName());
}
 

@Test
public void testAutowiredMethodParameterWithMultipleNonQualifiedCandidates() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedMethodParameterTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	try {
		context.refresh();
		fail("expected BeanCreationException");
	}
	catch (BeanCreationException e) {
		assertTrue(e.getRootCause() instanceof NoSuchBeanDefinitionException);
		assertEquals("autowired", e.getBeanName());
	}
}
 

@Test
public void testAutowiredMethodParameterWithMultipleNonQualifiedCandidates() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedMethodParameterTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	try {
		context.refresh();
		fail("expected BeanCreationException");
	}
	catch (BeanCreationException e) {
		assertTrue(e.getRootCause() instanceof NoSuchBeanDefinitionException);
		assertEquals("autowired", e.getBeanName());
	}
}
 

@Test
public void testAutowiredFieldDoesNotResolveCandidateWithDefaultValueAndConflictingValueOnBeanDefinition() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	// qualifier added, and non-default value specified
	person1.addQualifier(new AutowireCandidateQualifier(TestQualifierWithDefaultValue.class, "not the default"));
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedFieldWithDefaultValueTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	try {
		context.refresh();
		fail("expected BeanCreationException");
	}
	catch (BeanCreationException e) {
		assertTrue(e.getRootCause() instanceof NoSuchBeanDefinitionException);
		assertEquals("autowired", e.getBeanName());
	}
}
 

@Test
public void autowiredFieldWithSingleNonQualifiedCandidate() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs = new ConstructorArgumentValues();
	cavs.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person = new RootBeanDefinition(Person.class, cavs, null);
	context.registerBeanDefinition(JUERGEN, person);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedFieldTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	try {
		context.refresh();
		fail("expected BeanCreationException");
	}
	catch (BeanCreationException e) {
		assertTrue(e.getRootCause() instanceof NoSuchBeanDefinitionException);
		assertEquals("autowired", e.getBeanName());
	}
}
 

@Test
public void testAutowiredFieldResolvesQualifiedCandidateWithDefaultValueAndNoValueOnBeanDefinition() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	// qualifier added, but includes no value
	person1.addQualifier(new AutowireCandidateQualifier(TestQualifierWithDefaultValue.class));
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedFieldWithDefaultValueTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	context.refresh();
	QualifiedFieldWithDefaultValueTestBean bean =
			(QualifiedFieldWithDefaultValueTestBean) context.getBean("autowired");
	assertEquals(JUERGEN, bean.getPerson().getName());
}
 

@Test
public void testAutowiredFieldDoesNotResolveWithMultipleQualifierValuesAndConflictingDefaultValue() {
	GenericApplicationContext context = new GenericApplicationContext();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	AutowireCandidateQualifier qualifier = new AutowireCandidateQualifier(TestQualifierWithMultipleAttributes.class);
	qualifier.setAttribute("number", 456);
	person1.addQualifier(qualifier);
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	AutowireCandidateQualifier qualifier2 = new AutowireCandidateQualifier(TestQualifierWithMultipleAttributes.class);
	qualifier2.setAttribute("number", 123);
	qualifier2.setAttribute("value", "not the default");
	person2.addQualifier(qualifier2);
	context.registerBeanDefinition(JUERGEN, person1);
	context.registerBeanDefinition(MARK, person2);
	context.registerBeanDefinition("autowired",
			new RootBeanDefinition(QualifiedFieldWithMultipleAttributesTestBean.class));
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	try {
		context.refresh();
		fail("expected BeanCreationException");
	}
	catch (BeanCreationException e) {
		assertTrue(e.getRootCause() instanceof NoSuchBeanDefinitionException);
		assertEquals("autowired", e.getBeanName());
	}
}
 

@Test
public void prototypeCreationReevaluatesExpressions() {
	GenericApplicationContext ac = new GenericApplicationContext();
	AnnotationConfigUtils.registerAnnotationConfigProcessors(ac);
	GenericConversionService cs = new GenericConversionService();
	cs.addConverter(String.class, String.class, new Converter<String, String>() {
		@Override
		public String convert(String source) {
			return source.trim();
		}
	});
	ac.getBeanFactory().registerSingleton(GenericApplicationContext.CONVERSION_SERVICE_BEAN_NAME, cs);
	RootBeanDefinition rbd = new RootBeanDefinition(PrototypeTestBean.class);
	rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
	rbd.getPropertyValues().add("country", "#{systemProperties.country}");
	rbd.getPropertyValues().add("country2", new TypedStringValue("-#{systemProperties.country}-"));
	ac.registerBeanDefinition("test", rbd);
	ac.refresh();

	try {
		System.getProperties().put("name", "juergen1");
		System.getProperties().put("country", " UK1 ");
		PrototypeTestBean tb = (PrototypeTestBean) ac.getBean("test");
		assertEquals("juergen1", tb.getName());
		assertEquals("UK1", tb.getCountry());
		assertEquals("-UK1-", tb.getCountry2());

		System.getProperties().put("name", "juergen2");
		System.getProperties().put("country", "  UK2  ");
		tb = (PrototypeTestBean) ac.getBean("test");
		assertEquals("juergen2", tb.getName());
		assertEquals("UK2", tb.getCountry());
		assertEquals("-UK2-", tb.getCountry2());
	}
	finally {
		System.getProperties().remove("name");
		System.getProperties().remove("country");
	}
}
 

@Test  // SPR-11830
public void configWithSetWithProviderImplementation() {
	GenericApplicationContext ac = new GenericApplicationContext();
	AnnotationConfigUtils.registerAnnotationConfigProcessors(ac);
	ac.registerBeanDefinition("config", new RootBeanDefinition(ConfigWithSetWithProviderImplementation.class));
	ac.refresh();
	assertSame(ac.getBean("customName"), ConfigWithSetWithProviderImplementation.set);
}
 

/**
 * Load a Spring ApplicationContext from the supplied {@code locations}.
 *
 * <p>Implementation details:
 *
 * <ul>
 * <li>Creates a {@link GenericApplicationContext} instance.</li>
 * <li>Calls {@link #prepareContext(GenericApplicationContext)} to allow for customizing the context
 * before bean definitions are loaded.</li>
 * <li>Calls {@link #customizeBeanFactory(DefaultListableBeanFactory)} to allow for customizing the
 * context's {@code DefaultListableBeanFactory}.</li>
 * <li>Delegates to {@link #createBeanDefinitionReader(GenericApplicationContext)} to create a
 * {@link BeanDefinitionReader} which is then used to populate the context
 * from the specified locations.</li>
 * <li>Delegates to {@link AnnotationConfigUtils} for
 * {@link AnnotationConfigUtils#registerAnnotationConfigProcessors registering}
 * annotation configuration processors.</li>
 * <li>Calls {@link #customizeContext(GenericApplicationContext)} to allow for customizing the context
 * before it is refreshed.</li>
 * <li>{@link ConfigurableApplicationContext#refresh Refreshes} the
 * context and registers a JVM shutdown hook for it.</li>
 * </ul>
 *
 * <p><b>Note</b>: this method does not provide a means to set active bean definition
 * profiles for the loaded context. See {@link #loadContext(MergedContextConfiguration)}
 * and {@link AbstractContextLoader#prepareContext(ConfigurableApplicationContext, MergedContextConfiguration)}
 * for an alternative.
 *
 * @return a new application context
 * @see org.springframework.test.context.ContextLoader#loadContext
 * @see GenericApplicationContext
 * @see #loadContext(MergedContextConfiguration)
 * @since 2.5
 */
@Override
public final ConfigurableApplicationContext loadContext(String... locations) throws Exception {
	if (logger.isDebugEnabled()) {
		logger.debug(String.format("Loading ApplicationContext for locations [%s].",
			StringUtils.arrayToCommaDelimitedString(locations)));
	}
	GenericApplicationContext context = new GenericApplicationContext();
	prepareContext(context);
	customizeBeanFactory(context.getDefaultListableBeanFactory());
	createBeanDefinitionReader(context).loadBeanDefinitions(locations);
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	customizeContext(context);
	context.refresh();
	context.registerShutdownHook();
	return context;
}
 

/**
 * Load a Spring {@link WebApplicationContext} from the supplied
 * {@link MergedContextConfiguration}.
 * <p>Implementation details:
 * <ul>
 * <li>Calls {@link #validateMergedContextConfiguration(WebMergedContextConfiguration)}
 * to allow subclasses to validate the supplied configuration before proceeding.</li>
 * <li>Creates a {@link GenericWebApplicationContext} instance.</li>
 * <li>If the supplied {@code MergedContextConfiguration} references a
 * {@linkplain MergedContextConfiguration#getParent() parent configuration},
 * the corresponding {@link MergedContextConfiguration#getParentApplicationContext()
 * ApplicationContext} will be retrieved and
 * {@linkplain GenericWebApplicationContext#setParent(ApplicationContext) set as the parent}
 * for the context created by this method.</li>
 * <li>Delegates to {@link #configureWebResources} to create the
 * {@link MockServletContext} and set it in the {@code WebApplicationContext}.</li>
 * <li>Calls {@link #prepareContext} to allow for customizing the context
 * before bean definitions are loaded.</li>
 * <li>Calls {@link #customizeBeanFactory} to allow for customizing the
 * context's {@code DefaultListableBeanFactory}.</li>
 * <li>Delegates to {@link #loadBeanDefinitions} to populate the context
 * from the locations or classes in the supplied {@code MergedContextConfiguration}.</li>
 * <li>Delegates to {@link AnnotationConfigUtils} for
 * {@linkplain AnnotationConfigUtils#registerAnnotationConfigProcessors registering}
 * annotation configuration processors.</li>
 * <li>Calls {@link #customizeContext} to allow for customizing the context
 * before it is refreshed.</li>
 * <li>{@link ConfigurableApplicationContext#refresh Refreshes} the
 * context and registers a JVM shutdown hook for it.</li>
 * </ul>
 * @return a new web application context
 * @see org.springframework.test.context.SmartContextLoader#loadContext(MergedContextConfiguration)
 * @see GenericWebApplicationContext
 */
@Override
public final ConfigurableApplicationContext loadContext(MergedContextConfiguration mergedConfig) throws Exception {
	Assert.isTrue(mergedConfig instanceof WebMergedContextConfiguration,
			() -> String.format("Cannot load WebApplicationContext from non-web merged context configuration %s. " +
					"Consider annotating your test class with @WebAppConfiguration.", mergedConfig));

	WebMergedContextConfiguration webMergedConfig = (WebMergedContextConfiguration) mergedConfig;

	if (logger.isDebugEnabled()) {
		logger.debug(String.format("Loading WebApplicationContext for merged context configuration %s.",
			webMergedConfig));
	}

	validateMergedContextConfiguration(webMergedConfig);

	GenericWebApplicationContext context = new GenericWebApplicationContext();

	ApplicationContext parent = mergedConfig.getParentApplicationContext();
	if (parent != null) {
		context.setParent(parent);
	}
	configureWebResources(context, webMergedConfig);
	prepareContext(context, webMergedConfig);
	customizeBeanFactory(context.getDefaultListableBeanFactory(), webMergedConfig);
	loadBeanDefinitions(context, webMergedConfig);
	AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
	customizeContext(context, webMergedConfig);
	context.refresh();
	context.registerShutdownHook();
	return context;
}