diff --git a/spring-beans/src/main/java/org/springframework/beans/factory/support/SimpleAutowireCandidateResolver.java b/spring-beans/src/main/java/org/springframework/beans/factory/support/SimpleAutowireCandidateResolver.java
index b67fdb6e54..12041b3686 100644
--- a/spring-beans/src/main/java/org/springframework/beans/factory/support/SimpleAutowireCandidateResolver.java
+++ b/spring-beans/src/main/java/org/springframework/beans/factory/support/SimpleAutowireCandidateResolver.java
@@ -66,11 +66,15 @@ public class SimpleAutowireCandidateResolver implements AutowireCandidateResolve
 	 * @see org.springframework.beans.factory.config.BeanDefinition#isAutowireCandidate()
 	 * @see AbstractBeanDefinition#isDefaultCandidate()
 	 */
+	@SuppressWarnings("unchecked")
 	public static <T> Map<String, T> resolveAutowireCandidates(ConfigurableListableBeanFactory lbf, Class<T> type) {
 		Map<String, T> candidates = new LinkedHashMap<>();
 		for (String beanName : BeanFactoryUtils.beanNamesForTypeIncludingAncestors(lbf, type)) {
 			if (AutowireUtils.isAutowireCandidate(lbf, beanName)) {
-				candidates.put(beanName, lbf.getBean(beanName, type));
+				Object beanInstance = lbf.getBean(beanName);
+				if (!(beanInstance instanceof NullBean)) {
+					candidates.put(beanName, (T) beanInstance);
+				}
 			}
 		}
 		return candidates;
diff --git a/spring-beans/src/test/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessorTests.java b/spring-beans/src/test/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessorTests.java
index aed293304a..b432e50b38 100644
--- a/spring-beans/src/test/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessorTests.java
+++ b/spring-beans/src/test/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessorTests.java
@@ -1770,6 +1770,10 @@ class AutowiredAnnotationBeanPostProcessorTests {
 		parent.registerBeanDefinition("testBean4", tb4);
 		bf.setParentBeanFactory(parent);
 
+		RootBeanDefinition tb5 = new RootBeanDefinition(NullFactoryMethods.class);
+		tb5.setFactoryMethodName("createTestBean");
+		bf.registerBeanDefinition("testBean5", tb5);
+
 		ObjectProviderInjectionBean bean = bf.getBean("annotatedBean", ObjectProviderInjectionBean.class);
 		assertThat(bean.streamTestBeans()).containsExactly(bf.getBean("testBean1", TestBean.class),
 				bf.getBean("testBean2", TestBean.class));
@@ -1789,7 +1793,7 @@ class AutowiredAnnotationBeanPostProcessorTests {
 		Map<String, TestBean> typeMatches = BeanFactoryUtils.beansOfTypeIncludingAncestors(bf, TestBean.class);
 		assertThat(typeMatches.remove("testBean3")).isNotNull();
 		Map<String, TestBean> candidates = SimpleAutowireCandidateResolver.resolveAutowireCandidates(bf, TestBean.class);
-		assertThat(candidates).containsExactlyEntriesOf(candidates);
+		assertThat(candidates).containsExactlyEntriesOf(typeMatches);
 	}
 
 	@Test
diff --git a/spring-core/src/main/java/org/springframework/core/convert/support/GenericConversionService.java b/spring-core/src/main/java/org/springframework/core/convert/support/GenericConversionService.java
index a8e6e51cb1..f4c960b923 100644
--- a/spring-core/src/main/java/org/springframework/core/convert/support/GenericConversionService.java
+++ b/spring-core/src/main/java/org/springframework/core/convert/support/GenericConversionService.java
@@ -341,6 +341,13 @@ public class GenericConversionService implements ConfigurableConversionService {
 					conditionalConverter.matches(sourceType, targetType);
 		}
 
+		public boolean matchesFallback(TypeDescriptor sourceType, TypeDescriptor targetType) {
+			return (this.typeInfo.getTargetType() == targetType.getObjectType() &&
+					this.targetType.hasUnresolvableGenerics() &&
+					(!(this.converter instanceof ConditionalConverter conditionalConverter) ||
+							conditionalConverter.matches(sourceType, targetType)));
+		}
+
 		@Override
 		public @Nullable Object convert(@Nullable Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
 			if (source == null) {
@@ -610,12 +617,20 @@ public class GenericConversionService implements ConfigurableConversionService {
 		}
 
 		public @Nullable GenericConverter getConverter(TypeDescriptor sourceType, TypeDescriptor targetType) {
+			// Look for proper match among all converters (taking full generics into account)
 			for (GenericConverter converter : this.converters) {
 				if (!(converter instanceof ConditionalGenericConverter genericConverter) ||
 						genericConverter.matches(sourceType, targetType)) {
 					return converter;
 				}
 			}
+			// Fallback to pre-6.2.3 behavior: accept Class match for unresolvable generics
+			for (GenericConverter converter : this.converters) {
+				if (converter instanceof ConverterAdapter converterAdapter &&
+						converterAdapter.matchesFallback(sourceType, targetType)) {
+					return converter;
+				}
+			}
 			return null;
 		}
 
diff --git a/spring-core/src/test/java/org/springframework/core/convert/support/GenericConversionServiceTests.java b/spring-core/src/test/java/org/springframework/core/convert/support/GenericConversionServiceTests.java
index 87fac1f6bc..dbe84aaa1f 100644
--- a/spring-core/src/test/java/org/springframework/core/convert/support/GenericConversionServiceTests.java
+++ b/spring-core/src/test/java/org/springframework/core/convert/support/GenericConversionServiceTests.java
@@ -581,6 +581,18 @@ class GenericConversionServiceTests {
 		assertThat(bList).allMatch(e -> e instanceof BRaw);
 	}
 
+	@Test
+	void stringToListOfMapConverterWithFallbackMatch() {
+		conversionService.addConverter(new StringToListOfMapConverter());
+
+		List<Map<String, Object>> result = (List<Map<String, Object>>) conversionService.convert("foo",
+				TypeDescriptor.valueOf(String.class),
+				TypeDescriptor.collection(List.class, TypeDescriptor.valueOf(Map.class))
+		);
+
+		assertThat("foo").isEqualTo(result.get(0).get("bar"));
+	}
+
 
 	@ExampleAnnotation(active = true)
 	public String annotatedString;
@@ -969,4 +981,13 @@ class GenericConversionServiceTests {
 		}
 	}
 
+
+	private static class StringToListOfMapConverter implements Converter<String, List<? extends Map<String, ?>>> {
+
+		@Override
+		public List<? extends Map<String, ?>> convert(String source) {
+			return List.of(Map.of("bar", source));
+		}
+	}
+
 }