Refine exception message to include bean name

Closes gh-32775

spring-beans/src/main/java/org/springframework/beans/factory/aot/DefaultBeanRegistrationCodeFragments.java

@@ -79,8 +79,9 @@ class DefaultBeanRegistrationCodeFragments implements BeanRegistrationCodeFragme
 	@Override
 	public ClassName getTarget(RegisteredBean registeredBean) {
 		if (hasInstanceSupplier()) {
-			throw new IllegalStateException("Default code generation is not supported for bean definitions "
-					+ "declaring an instance supplier callback: " + registeredBean.getMergedBeanDefinition());
+			String resourceDescription = registeredBean.getMergedBeanDefinition().getResourceDescription();
+			throw new IllegalStateException("Error processing bean with name '" + registeredBean.getBeanName() + "'" +
+					(resourceDescription != null ? " defined in " + resourceDescription : "") + ": instance supplier is not supported");
 		}
 		Class<?> target = extractDeclaringClass(registeredBean, this.instantiationDescriptor.get());
 		while (target.getName().startsWith("java.") && registeredBean.isInnerBean()) {

spring-beans/src/test/java/org/springframework/beans/factory/aot/BeanDefinitionMethodGeneratorTests.java

@@ -692,8 +692,8 @@ void generateBeanDefinitionMethodWhenInstanceSupplierWithNoCustomization() {
 				this.methodGeneratorFactory, registeredBean, null,
 				List.of());
 		assertThatIllegalStateException().isThrownBy(() -> generator.generateBeanDefinitionMethod(
-				this.generationContext, this.beanRegistrationsCode)).withMessageStartingWith(
-				"Default code generation is not supported for bean definitions declaring an instance supplier callback");
+				this.generationContext, this.beanRegistrationsCode)).withMessage(
+				"Error processing bean with name 'testBean': instance supplier is not supported");
 	}
 
 	@Test
@@ -729,8 +729,8 @@ public CodeBlock generateInstanceSupplierCode(GenerationContext generationContex
 				this.methodGeneratorFactory, registeredBean, null,
 				List.of(aotContribution));
 		assertThatIllegalStateException().isThrownBy(() -> generator.generateBeanDefinitionMethod(
-				this.generationContext, this.beanRegistrationsCode)).withMessageStartingWith(
-						"Default code generation is not supported for bean definitions declaring an instance supplier callback");
+				this.generationContext, this.beanRegistrationsCode)).withMessage(
+						"Error processing bean with name 'testBean': instance supplier is not supported");
 	}
 
 	@Test

spring-beans/src/test/java/org/springframework/beans/factory/aot/DefaultBeanRegistrationCodeFragmentsTests.java

@@ -48,6 +48,7 @@
 import org.springframework.util.ReflectionUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
@@ -65,6 +66,28 @@ class DefaultBeanRegistrationCodeFragmentsTests {
 
 	private final DefaultListableBeanFactory beanFactory = new DefaultListableBeanFactory();
 
+	@Test
+	public void getTargetWithInstanceSupplier() {
+		RootBeanDefinition beanDefinition = new RootBeanDefinition(SimpleBean.class);
+		beanDefinition.setInstanceSupplier(SimpleBean::new);
+		RegisteredBean registeredBean = registerTestBean(beanDefinition);
+		BeanRegistrationCodeFragments codeFragments = createInstance(registeredBean);
+		assertThatIllegalStateException().isThrownBy(() -> codeFragments.getTarget(registeredBean))
+				.withMessageContaining("Error processing bean with name 'testBean': instance supplier is not supported");
+	}
+
+	@Test
+	public void getTargetWithInstanceSupplierAndResourceDescription() {
+		RootBeanDefinition beanDefinition = new RootBeanDefinition(SimpleBean.class);
+		beanDefinition.setInstanceSupplier(SimpleBean::new);
+		beanDefinition.setResourceDescription("my test resource");
+		RegisteredBean registeredBean = registerTestBean(beanDefinition);
+		BeanRegistrationCodeFragments codeFragments = createInstance(registeredBean);
+		assertThatIllegalStateException().isThrownBy(() -> codeFragments.getTarget(registeredBean))
+				.withMessageContaining("Error processing bean with name 'testBean' defined in my test resource: "
+						+ "instance supplier is not supported");
+	}
+
 	@Test
 	void getTargetOnConstructor() {
 		RegisteredBean registeredBean = registerTestBean(SimpleBean.class,
@@ -257,13 +280,16 @@ private RegisteredBean registerTestBean(Class<?> beanType,
 		return RegisteredBean.of(this.beanFactory, "testBean");
 	}
 
-
 	private RegisteredBean registerTestBean(ResolvableType beanType,
 			@Nullable Executable constructorOrFactoryMethod) {
 		RootBeanDefinition beanDefinition = new RootBeanDefinition();
 		beanDefinition.setTargetType(beanType);
-		this.beanFactory.registerBeanDefinition("testBean",
-				applyConstructorOrFactoryMethod(beanDefinition, constructorOrFactoryMethod));
+		return registerTestBean(applyConstructorOrFactoryMethod(
+				beanDefinition, constructorOrFactoryMethod));
+	}
+
+	private RegisteredBean registerTestBean(RootBeanDefinition beanDefinition) {
+		this.beanFactory.registerBeanDefinition("testBean", beanDefinition);
 		return RegisteredBean.of(this.beanFactory, "testBean");
 	}