diff --git a/spring-core/src/main/java/org/springframework/core/annotation/AnnotationTypeMapping.java b/spring-core/src/main/java/org/springframework/core/annotation/AnnotationTypeMapping.java
index 3ebcefc8481..50fbc8fda31 100644
--- a/spring-core/src/main/java/org/springframework/core/annotation/AnnotationTypeMapping.java
+++ b/spring-core/src/main/java/org/springframework/core/annotation/AnnotationTypeMapping.java
@@ -271,10 +271,10 @@ final class AnnotationTypeMapping {
 		int[] mappings = this.conventionMappings;
 		for (int i = 0; i < mappings.length; i++) {
 			String name = this.attributes.get(i).getName();
-			MirrorSet mirrors = getMirrorSets().getAssigned(i);
 			int mapped = rootAttributes.indexOf(name);
 			if (!MergedAnnotation.VALUE.equals(name) && mapped != -1) {
 				mappings[i] = mapped;
+				MirrorSet mirrors = getMirrorSets().getAssigned(i);
 				if (mirrors != null) {
 					for (int j = 0; j < mirrors.size(); j++) {
 						mappings[mirrors.getAttributeIndex(j)] = mapped;
@@ -509,7 +509,6 @@ final class AnnotationTypeMapping {
 	 * @return {@code true} if the value is equivalent to the default value
 	 */
 	boolean isEquivalentToDefaultValue(int attributeIndex, Object value, ValueExtractor valueExtractor) {
-
 		Method attribute = this.attributes.get(attributeIndex);
 		return isEquivalentToDefaultValue(attribute, value, valueExtractor);
 	}
diff --git a/spring-core/src/test/java/org/springframework/core/annotation/MergedAnnotationsTests.java b/spring-core/src/test/java/org/springframework/core/annotation/MergedAnnotationsTests.java
index 67ca097531a..063d00440f6 100644
--- a/spring-core/src/test/java/org/springframework/core/annotation/MergedAnnotationsTests.java
+++ b/spring-core/src/test/java/org/springframework/core/annotation/MergedAnnotationsTests.java
@@ -207,6 +207,70 @@ class MergedAnnotationsTests {
 
 	}
 
+	@Nested
+	class ConventionBasedAnnotationAttributeOverrideTests {
+
+		@Test
+		void getWithInheritedAnnotationsAttributesWithConventionBasedComposedAnnotation() {
+			MergedAnnotation<?> annotation =
+					MergedAnnotations.from(ConventionBasedComposedContextConfigurationClass.class,
+						SearchStrategy.INHERITED_ANNOTATIONS).get(ContextConfiguration.class);
+			assertThat(annotation.isPresent()).isTrue();
+			assertThat(annotation.getStringArray("locations")).containsExactly("explicitDeclaration");
+			assertThat(annotation.getStringArray("value")).containsExactly("explicitDeclaration");
+		}
+
+		@Test
+		void getWithInheritedAnnotationsFromHalfConventionBasedAndHalfAliasedComposedAnnotation1() {
+			// SPR-13554: convention mapping mixed with AliasFor annotations
+			// xmlConfigFiles can be used because it has an AliasFor annotation
+			MergedAnnotation<?> annotation =
+					MergedAnnotations.from(HalfConventionBasedAndHalfAliasedComposedContextConfigurationClass1.class,
+						SearchStrategy.INHERITED_ANNOTATIONS).get(ContextConfiguration.class);
+			assertThat(annotation.getStringArray("locations")).containsExactly("explicitDeclaration");
+			assertThat(annotation.getStringArray("value")).containsExactly("explicitDeclaration");
+		}
+
+		@Test
+		void withInheritedAnnotationsFromHalfConventionBasedAndHalfAliasedComposedAnnotation2() {
+			// SPR-13554: convention mapping mixed with AliasFor annotations
+			// locations doesn't apply because it has no AliasFor annotation
+			MergedAnnotation<?> annotation =
+					MergedAnnotations.from(HalfConventionBasedAndHalfAliasedComposedContextConfigurationClass2.class,
+						SearchStrategy.INHERITED_ANNOTATIONS).get(ContextConfiguration.class);
+			assertThat(annotation.getStringArray("locations")).isEmpty();
+			assertThat(annotation.getStringArray("value")).isEmpty();
+		}
+
+		@Test
+		void getWithInheritedAnnotationsFromInvalidConventionBasedComposedAnnotation() {
+			assertThatExceptionOfType(AnnotationConfigurationException.class)
+				.isThrownBy(() -> MergedAnnotations.from(InvalidConventionBasedComposedContextConfigurationClass.class,
+							SearchStrategy.INHERITED_ANNOTATIONS).get(ContextConfiguration.class));
+		}
+
+		@Test
+		void getWithTypeHierarchyWithSingleElementOverridingAnArrayViaConvention() {
+			testGetWithTypeHierarchy(ConventionBasedSinglePackageComponentScanClass.class, "com.example.app.test");
+		}
+
+		@Test
+		void getWithTypeHierarchyWithLocalAliasesThatConflictWithAttributesInMetaAnnotationByConvention() {
+			MergedAnnotation<?> annotation =
+					MergedAnnotations.from(SpringApplicationConfigurationClass.class, SearchStrategy.TYPE_HIERARCHY)
+						.get(ContextConfiguration.class);
+			assertThat(annotation.getStringArray("locations")).isEmpty();
+			assertThat(annotation.getStringArray("value")).isEmpty();
+			assertThat(annotation.getClassArray("classes")).containsExactly(Number.class);
+		}
+
+		@Test
+		void getWithTypeHierarchyOnMethodWithSingleElementOverridingAnArrayViaConvention() throws Exception {
+			testGetWithTypeHierarchyWebMapping(WebController.class.getMethod("postMappedWithPathAttribute"));
+		}
+
+	}
+
 	@Test
 	void fromPreconditions() {
 		SearchStrategy strategy = SearchStrategy.DIRECT;
@@ -479,41 +543,7 @@ class MergedAnnotationsTests {
 		assertThat(annotation.isPresent()).isTrue();
 	}
 
-	@Test
-	void getWithInheritedAnnotationsAttributesWithConventionBasedComposedAnnotation() {
-		MergedAnnotation<?> annotation = MergedAnnotations.from(
-				ConventionBasedComposedContextConfigurationClass.class,
-				SearchStrategy.INHERITED_ANNOTATIONS).get(ContextConfiguration.class);
-		assertThat(annotation.isPresent()).isTrue();
-		assertThat(annotation.getStringArray("locations")).containsExactly(
-				"explicitDeclaration");
-		assertThat(annotation.getStringArray("value")).containsExactly(
-				"explicitDeclaration");
-	}
 
-	@Test
-	void getWithInheritedAnnotationsFromHalfConventionBasedAndHalfAliasedComposedAnnotation1() {
-		// SPR-13554: convention mapping mixed with AliasFor annotations
-		// xmlConfigFiles can be used because it has an AliasFor annotation
-		MergedAnnotation<?> annotation = MergedAnnotations.from(
-				HalfConventionBasedAndHalfAliasedComposedContextConfigurationClass1.class,
-				SearchStrategy.INHERITED_ANNOTATIONS).get(ContextConfiguration.class);
-		assertThat(annotation.getStringArray("locations")).containsExactly(
-				"explicitDeclaration");
-		assertThat(annotation.getStringArray("value")).containsExactly(
-				"explicitDeclaration");
-	}
-
-	@Test
-	void withInheritedAnnotationsFromHalfConventionBasedAndHalfAliasedComposedAnnotation2() {
-		// SPR-13554: convention mapping mixed with AliasFor annotations
-		// locations doesn't apply because it has no AliasFor annotation
-		MergedAnnotation<?> annotation = MergedAnnotations.from(
-				HalfConventionBasedAndHalfAliasedComposedContextConfigurationClass2.class,
-				SearchStrategy.INHERITED_ANNOTATIONS).get(ContextConfiguration.class);
-		assertThat(annotation.getStringArray("locations")).isEmpty();
-		assertThat(annotation.getStringArray("value")).isEmpty();
-	}
 
 	@Test
 	void withInheritedAnnotationsFromAliasedComposedAnnotation() {
@@ -591,13 +621,6 @@ class MergedAnnotationsTests {
 		assertThat(annotation.getClassArray("classes")).isEmpty();
 	}
 
-	@Test
-	void getWithInheritedAnnotationsFromInvalidConventionBasedComposedAnnotation() {
-		assertThatExceptionOfType(AnnotationConfigurationException.class).isThrownBy(() ->
-				MergedAnnotations.from(InvalidConventionBasedComposedContextConfigurationClass.class,
-						SearchStrategy.INHERITED_ANNOTATIONS).get(ContextConfiguration.class));
-	}
-
 	@Test
 	void getWithInheritedAnnotationsFromShadowedAliasComposedAnnotation() {
 		MergedAnnotation<?> annotation = MergedAnnotations.from(
@@ -760,11 +783,6 @@ class MergedAnnotationsTests {
 		testGetWithTypeHierarchy(ComponentScanWithBasePackagesAndValueAliasClass.class, "com.example.app.test");
 	}
 
-	@Test
-	void getWithTypeHierarchyWithSingleElementOverridingAnArrayViaConvention() {
-		testGetWithTypeHierarchy(ConventionBasedSinglePackageComponentScanClass.class, "com.example.app.test");
-	}
-
 	@Test
 	void getWithTypeHierarchyWithSingleElementOverridingAnArrayViaAliasFor() {
 		testGetWithTypeHierarchy(AliasForBasedSinglePackageComponentScanClass.class, "com.example.app.test");
@@ -793,22 +811,6 @@ class MergedAnnotationsTests {
 				"test.properties");
 	}
 
-	@Test
-	void getWithTypeHierarchyWithLocalAliasesThatConflictWithAttributesInMetaAnnotationByConvention() {
-		MergedAnnotation<?> annotation = MergedAnnotations.from(
-				SpringApplicationConfigurationClass.class, SearchStrategy.TYPE_HIERARCHY).get(
-						ContextConfiguration.class);
-		assertThat(annotation.getStringArray("locations")).isEmpty();
-		assertThat(annotation.getStringArray("value")).isEmpty();
-		assertThat(annotation.getClassArray("classes")).containsExactly(Number.class);
-	}
-
-	@Test
-	void getWithTypeHierarchyOnMethodWithSingleElementOverridingAnArrayViaConvention() throws Exception {
-		testGetWithTypeHierarchyWebMapping(
-				WebController.class.getMethod("postMappedWithPathAttribute"));
-	}
-
 	@Test
 	void getWithTypeHierarchyOnMethodWithSingleElementOverridingAnArrayViaAliasFor() throws Exception {
 		testGetWithTypeHierarchyWebMapping(