Consistently use canonical annotation names in string representations

spring-core/src/main/java/org/springframework/core/annotation/AttributeMethods.java

@@ -136,7 +136,7 @@ final class AttributeMethods {
 				}
 				catch (Throwable ex) {
 					throw new IllegalStateException("Could not obtain annotation attribute value for " +
-							get(i).getName() + " declared on " + annotation.annotationType(), ex);
+							get(i).getName() + " declared on @" + getName(annotation.annotationType()), ex);
 				}
 			}
 		}
@@ -300,4 +300,9 @@ final class AttributeMethods {
 		return "attribute '" + attributeName + "'" + in;
 	}
 
+	private static String getName(Class<?> clazz) {
+		String canonicalName = clazz.getCanonicalName();
+		return (canonicalName != null ? canonicalName : clazz.getName());
+	}
+
 }

spring-core/src/main/java/org/springframework/core/annotation/SynthesizedMergedAnnotationInvocationHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -211,7 +211,7 @@ final class SynthesizedMergedAnnotationInvocationHandler<A extends Annotation> i
 			Class<?> type = ClassUtils.resolvePrimitiveIfNecessary(method.getReturnType());
 			return this.annotation.getValue(attributeName, type).orElseThrow(
 					() -> new NoSuchElementException("No value found for attribute named '" + attributeName +
-							"' in merged annotation " + this.annotation.getType().getName()));
+							"' in merged annotation " + getName(this.annotation.getType())));
 		});
 
 		// Clone non-empty arrays so that users cannot alter the contents of values in our cache.

spring-core/src/main/java/org/springframework/core/convert/TypeDescriptor.java

@@ -546,12 +546,16 @@ public class TypeDescriptor implements Serializable {
 	public String toString() {
 		StringBuilder builder = new StringBuilder();
 		for (Annotation ann : getAnnotations()) {
-			builder.append('@').append(ann.annotationType().getName()).append(' ');
+			builder.append('@').append(getName(ann.annotationType())).append(' ');
 		}
 		builder.append(getResolvableType());
 		return builder.toString();
 	}
 
+	private static String getName(Class<?> clazz) {
+		String canonicalName = clazz.getCanonicalName();
+		return (canonicalName != null ? canonicalName : clazz.getName());
+	}
 
 	/**
 	 * Create a new type descriptor for an object.

spring-core/src/test/java/org/springframework/core/annotation/MergedAnnotationsTests.java

@@ -1960,7 +1960,7 @@ class MergedAnnotationsTests {
 		assertThatExceptionOfType(NoSuchElementException.class).isThrownBy(() ->
 				MergedAnnotation.of(AnnotationWithoutDefaults.class, attributes).synthesize().text())
 				.withMessage("No value found for attribute named 'text' in merged annotation " +
-						AnnotationWithoutDefaults.class.getName());
+						AnnotationWithoutDefaults.class.getCanonicalName());
 	}
 
 	@Test

spring-expression/src/test/java/org/springframework/expression/spel/IndexingTests.java

@@ -71,7 +71,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser();
 		Expression expression = parser.parseExpression("property");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.util.HashMap<?, ?>", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.util.HashMap<?, ?>", FieldAnnotation.class.getCanonicalName());
 		assertThat(expression.getValue(this)).isEqualTo(property);
 		assertThat(expression.getValue(this, Map.class)).isEqualTo(property);
 		expression = parser.parseExpression("property['foo']");
@@ -106,7 +106,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser();
 		Expression expression = parser.parseExpression("property");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.util.HashMap<?, ?>", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.util.HashMap<?, ?>", FieldAnnotation.class.getCanonicalName());
 		assertThat(expression.getValue(this)).isEqualTo(property);
 		expression = parser.parseExpression("property['foo']");
 		assertThat(expression.getValue(this)).isEqualTo("bar");
@@ -151,7 +151,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser();
 		Expression expression = parser.parseExpression("property");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.util.ArrayList<?>", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.util.ArrayList<?>", FieldAnnotation.class.getCanonicalName());
 		assertThat(expression.getValue(this)).isEqualTo(property);
 		expression = parser.parseExpression("property[0]");
 		assertThat(expression.getValue(this)).isEqualTo("bar");
@@ -165,7 +165,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser();
 		Expression expression = parser.parseExpression("property");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.util.ArrayList<?>", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.util.ArrayList<?>", FieldAnnotation.class.getCanonicalName());
 		assertThat(expression.getValue(this)).isEqualTo(property);
 		expression = parser.parseExpression("property[0]");
 		assertThat(expression.getValue(this)).isEqualTo(3);
@@ -180,7 +180,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser(new SpelParserConfiguration(true, true));
 		Expression expression = parser.parseExpression("property");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.util.ArrayList<?>", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.util.ArrayList<?>", FieldAnnotation.class.getCanonicalName());
 		assertThat(expression.getValue(this)).isEqualTo(property);
 
 		Expression indexExpression = parser.parseExpression("property[0]");
@@ -257,7 +257,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser(configuration);
 		Expression expression = parser.parseExpression("property");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.lang.Object", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.lang.Object", FieldAnnotation.class.getCanonicalName());
 		assertThat(expression.getValue(this)).isNull();
 
 		Expression indexExpression = parser.parseExpression("property[0]");
@@ -274,7 +274,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser(configuration);
 		Expression expression = parser.parseExpression("property");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.util.ArrayList<?>", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.util.ArrayList<?>", FieldAnnotation.class.getCanonicalName());
 		assertThat(expression.getValue(this)).isEqualTo(property);
 
 		Expression indexExpression = parser.parseExpression("property[0]");
@@ -306,7 +306,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser();
 		Expression expression = parser.parseExpression("property");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.lang.String[]", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.lang.String[]", FieldAnnotation.class.getCanonicalName());
 		assertThat(expression.getValue(this)).isEqualTo(property);
 		expression = parser.parseExpression("property[0]");
 		assertThat(expression.getValue(this)).isEqualTo("bar");
@@ -330,7 +330,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser();
 		Expression expression = parser.parseExpression("listNotGeneric");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.util.ArrayList<?>", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.util.ArrayList<?>", FieldAnnotation.class.getCanonicalName());
 		assertThat(expression.getValue(this, String.class)).isEqualTo("5,6");
 	}
 
@@ -339,7 +339,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser();
 		Expression expression = parser.parseExpression("listNotGeneric");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.util.List<?>", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.util.List<?>", FieldAnnotation.class.getCanonicalName());
 	}
 
 	@SuppressWarnings("unchecked")
@@ -351,7 +351,7 @@ class IndexingTests {
 		SpelExpressionParser parser = new SpelExpressionParser();
 		Expression expression = parser.parseExpression("mapNotGeneric");
 		assertThat(expression.getValueTypeDescriptor(this)).asString()
-				.isEqualTo("@%s java.util.HashMap<?, ?>", FieldAnnotation.class.getName());
+				.isEqualTo("@%s java.util.HashMap<?, ?>", FieldAnnotation.class.getCanonicalName());
 	}
 
 	@Test