diff --git a/config/src/test/java/org/springframework/security/config/annotation/method/configuration/PrePostReactiveMethodSecurityConfigurationTests.java b/config/src/test/java/org/springframework/security/config/annotation/method/configuration/PrePostReactiveMethodSecurityConfigurationTests.java
index d2b5a740066..b82eb985bc9 100644
--- a/config/src/test/java/org/springframework/security/config/annotation/method/configuration/PrePostReactiveMethodSecurityConfigurationTests.java
+++ b/config/src/test/java/org/springframework/security/config/annotation/method/configuration/PrePostReactiveMethodSecurityConfigurationTests.java
@@ -466,6 +466,15 @@ public void adviseWhenPrePostEnabledThenEachInterceptorRunsExactlyOnce() {
 		verify(expressionHandler, times(4)).createEvaluationContext(any(Authentication.class), any());
 	}
 
+	// gh-15721
+	@Test
+	@WithMockUser(roles = "uid")
+	public void methodWhenMetaAnnotationPropertiesHasClassProperties() {
+		this.spring.register(MetaAnnotationPlaceholderConfig.class).autowire();
+		MetaAnnotationService service = this.spring.getContext().getBean(MetaAnnotationService.class);
+		assertThat(service.getIdPath("uid").block()).isEqualTo("uid");
+	}
+
 	@Configuration
 	@EnableReactiveMethodSecurity
 	static class MethodSecurityServiceEnabledConfig {