Fix annotation matching when using scoped proxies

Update `OnBeanCondition` to check `isAutowireCandidate` on the original
bean of scoped proxy targets.

Fixes gh-43423

Author: philwebb

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/OnBeanCondition.java

@@ -202,25 +202,19 @@ private ConditionOutcome evaluateConditionalOnMissingBean(Spec<ConditionalOnMiss
 	}
 
 	protected final MatchResult getMatchingBeans(Spec<?> spec) {
+		ConfigurableListableBeanFactory beanFactory = getSearchBeanFactory(spec);
 		ClassLoader classLoader = spec.getContext().getClassLoader();
-		ConfigurableListableBeanFactory beanFactory = spec.getContext().getBeanFactory();
 		boolean considerHierarchy = spec.getStrategy() != SearchStrategy.CURRENT;
 		Set<Class<?>> parameterizedContainers = spec.getParameterizedContainers();
-		if (spec.getStrategy() == SearchStrategy.ANCESTORS) {
-			BeanFactory parent = beanFactory.getParentBeanFactory();
-			Assert.isInstanceOf(ConfigurableListableBeanFactory.class, parent,
-					"Unable to use SearchStrategy.ANCESTORS");
-			beanFactory = (ConfigurableListableBeanFactory) parent;
-		}
 		MatchResult result = new MatchResult();
 		Set<String> beansIgnoredByType = getNamesOfBeansIgnoredByType(classLoader, beanFactory, considerHierarchy,
 				spec.getIgnoredTypes(), parameterizedContainers);
 		for (String type : spec.getTypes()) {
 			Map<String, BeanDefinition> typeMatchedDefinitions = getBeanDefinitionsForType(classLoader,
 					considerHierarchy, beanFactory, type, parameterizedContainers);
 			Set<String> typeMatchedNames = matchedNamesFrom(typeMatchedDefinitions,
-					(name, definition) -> isCandidate(name, definition, beansIgnoredByType)
-							&& !ScopedProxyUtils.isScopedTarget(name));
+					(name, definition) -> !ScopedProxyUtils.isScopedTarget(name)
+							&& isCandidate(beanFactory, name, definition, beansIgnoredByType));
 			if (typeMatchedNames.isEmpty()) {
 				result.recordUnmatchedType(type);
 			}
@@ -232,7 +226,7 @@ protected final MatchResult getMatchingBeans(Spec<?> spec) {
 			Map<String, BeanDefinition> annotationMatchedDefinitions = getBeanDefinitionsForAnnotation(classLoader,
 					beanFactory, annotation, considerHierarchy);
 			Set<String> annotationMatchedNames = matchedNamesFrom(annotationMatchedDefinitions,
-					(name, definition) -> isCandidate(name, definition, beansIgnoredByType));
+					(name, definition) -> isCandidate(beanFactory, name, definition, beansIgnoredByType));
 			if (annotationMatchedNames.isEmpty()) {
 				result.recordUnmatchedAnnotation(annotation);
 			}
@@ -252,6 +246,17 @@ protected final MatchResult getMatchingBeans(Spec<?> spec) {
 		return result;
 	}
 
+	private ConfigurableListableBeanFactory getSearchBeanFactory(Spec<?> spec) {
+		ConfigurableListableBeanFactory beanFactory = spec.getContext().getBeanFactory();
+		if (spec.getStrategy() == SearchStrategy.ANCESTORS) {
+			BeanFactory parent = beanFactory.getParentBeanFactory();
+			Assert.isInstanceOf(ConfigurableListableBeanFactory.class, parent,
+					"Unable to use SearchStrategy.ANCESTORS");
+			beanFactory = (ConfigurableListableBeanFactory) parent;
+		}
+		return beanFactory;
+	}
+
 	private Set<String> matchedNamesFrom(Map<String, BeanDefinition> namedDefinitions,
 			BiPredicate<String, BeanDefinition> filter) {
 		Set<String> matchedNames = new LinkedHashSet<>(namedDefinitions.size());
@@ -263,9 +268,25 @@ private Set<String> matchedNamesFrom(Map<String, BeanDefinition> namedDefinition
 		return matchedNames;
 	}
 
-	private boolean isCandidate(String name, BeanDefinition definition, Set<String> ignoredBeans) {
-		return (!ignoredBeans.contains(name))
-				&& (definition == null || (definition.isAutowireCandidate() && isDefaultCandidate(definition)));
+	private boolean isCandidate(ConfigurableListableBeanFactory beanFactory, String name, BeanDefinition definition,
+			Set<String> ignoredBeans) {
+		return (!ignoredBeans.contains(name)) && (definition == null
+				|| isAutowireCandidate(beanFactory, name, definition) && isDefaultCandidate(definition));
+	}
+
+	private boolean isAutowireCandidate(ConfigurableListableBeanFactory beanFactory, String name,
+			BeanDefinition definition) {
+		return definition.isAutowireCandidate() || isScopeTargetAutowireCandidate(beanFactory, name);
+	}
+
+	private boolean isScopeTargetAutowireCandidate(ConfigurableListableBeanFactory beanFactory, String name) {
+		try {
+			return ScopedProxyUtils.isScopedTarget(name)
+					&& beanFactory.getBeanDefinition(ScopedProxyUtils.getOriginalBeanName(name)).isAutowireCandidate();
+		}
+		catch (NoSuchBeanDefinitionException ex) {
+			return false;
+		}
 	}
 
 	private boolean isDefaultCandidate(BeanDefinition definition) {

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/condition/ConditionalOnMissingBeanTests.java

@@ -45,6 +45,9 @@
 import org.springframework.context.annotation.Import;
 import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
 import org.springframework.context.annotation.ImportResource;
+import org.springframework.context.annotation.Scope;
+import org.springframework.context.annotation.ScopedProxyMode;
+import org.springframework.context.support.SimpleThreadScope;
 import org.springframework.core.type.AnnotationMetadata;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
@@ -124,6 +127,16 @@ void testAnnotationOnMissingBeanCondition() {
 			});
 	}
 
+	@Test
+	void testAnnotationOnMissingBeanConditionWithScopedProxy() {
+		this.contextRunner.withInitializer(this::registerScope)
+			.withUserConfiguration(ScopedExampleBeanConfiguration.class, OnAnnotationConfiguration.class)
+			.run((context) -> {
+				assertThat(context).doesNotHaveBean("bar");
+				assertThat(context.getBean(ScopedExampleBean.class)).hasToString("test");
+			});
+	}
+
 	@Test
 	void testAnnotationOnMissingBeanConditionWithEagerFactoryBean() {
 		// Rigorous test for SPR-11069
@@ -407,6 +420,10 @@ private Consumer<ConfigurableApplicationContext> exampleBeanRequirement(String..
 		};
 	}
 
+	private void registerScope(ConfigurableApplicationContext applicationContext) {
+		applicationContext.getBeanFactory().registerScope("test", new TestScope());
+	}
+
 	@Configuration(proxyBeanMethods = false)
 	static class OnBeanInAncestorsConfiguration {
 
@@ -665,6 +682,17 @@ String foo() {
 
 	}
 
+	@Configuration(proxyBeanMethods = false)
+	@TestAnnotation
+	static class ScopedFooConfiguration {
+
+		@Bean
+		String foo() {
+			return "foo";
+		}
+
+	}
+
 	@Configuration(proxyBeanMethods = false)
 	static class NotAutowireCandidateConfig {
 
@@ -717,6 +745,12 @@ ExampleBean exampleBean() {
 
 	}
 
+	@Configuration(proxyBeanMethods = false)
+	@Import(ScopedExampleBean.class)
+	static class ScopedExampleBeanConfiguration {
+
+	}
+
 	@Configuration(proxyBeanMethods = false)
 	static class UnrelatedExampleBeanConfiguration {
 
@@ -893,6 +927,15 @@ public String toString() {
 
 	}
 
+	@Scope(scopeName = "test", proxyMode = ScopedProxyMode.TARGET_CLASS)
+	static class ScopedExampleBean extends ExampleBean {
+
+		ScopedExampleBean() {
+			super("test");
+		}
+
+	}
+
 	static class CustomExampleBean extends ExampleBean {
 
 		CustomExampleBean() {
@@ -931,4 +974,8 @@ public String toString() {
 
 	}
 
+	static class TestScope extends SimpleThreadScope {
+
+	}
+
 }