Support @⁠Import on interfaces

See gh-34805
Closes gh-34820

Signed-off-by: Daeho Kwon <trewq231@naver.com>

spring-context/src/test/java/org/springframework/context/annotation/ImportSelectorTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -62,6 +62,7 @@ import static org.mockito.Mockito.spy;
  *
  * @author Phillip Webb
  * @author Stephane Nicoll
+ * @author Daeho Kwon
  */
 @SuppressWarnings("resource")
 public class ImportSelectorTests {
@@ -203,6 +204,71 @@ public class ImportSelectorTests {
 		assertThat(TestImportGroup.environment).isEqualTo(context.getEnvironment());
 	}
 
+	@Test
+	void importAnnotationOnImplementedInterfaceIsRespected() {
+		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(
+				InterfaceBasedConfig.class);
+
+		assertThat(context.getBean(ImportedConfig.class)).isNotNull();
+		assertThat(context.getBean(ImportedBean.class)).isNotNull();
+		assertThat(context.getBean(ImportedBean.class).name()).isEqualTo("imported");
+	}
+
+	@Test
+	void localImportShouldOverrideInterfaceImport() {
+		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(
+				OverridingConfig.class);
+
+		assertThat(context.getBean(ImportedConfig.class)).isNotNull();
+		assertThat(context.getBean(ImportedBean.class)).isNotNull();
+		assertThat(context.getBean(ImportedBean.class).name()).isEqualTo("from class");
+	}
+
+	@Import(ImportedConfig.class)
+	interface ConfigImportMarker {
+	}
+
+	@Configuration
+	static class InterfaceBasedConfig implements ConfigImportMarker {
+	}
+
+	@Configuration
+	@Import(OverridingImportedConfig.class)
+	static class OverridingConfig implements ConfigImportMarker {
+	}
+
+	@Configuration
+	static class OverridingImportedConfig {
+		@Bean
+		ImportedBean importedBean() {
+			return new ImportedBean("from class");
+		}
+	}
+
+	static class ImportedBean {
+
+		private final String name;
+
+		ImportedBean() {
+			this.name = "imported";
+		}
+
+		ImportedBean(String name) {
+			this.name = name;
+		}
+
+		String name() {
+			return name;
+		}
+	}
+
+	@Configuration
+	static class ImportedConfig {
+		@Bean
+		ImportedBean importedBean() {
+			return new ImportedBean();
+		}
+	}
 
 	@Configuration
 	@Import(SampleImportSelector.class)