diff --git a/spring-core/src/main/java/org/springframework/core/MethodParameter.java b/spring-core/src/main/java/org/springframework/core/MethodParameter.java
index 6c1e1068d0d53010f0d2c5122a23ccbf7c7a8b0c..f0125002246025d46cb94110414425a42d68d969 100644
--- a/spring-core/src/main/java/org/springframework/core/MethodParameter.java
+++ b/spring-core/src/main/java/org/springframework/core/MethodParameter.java
@@ -486,7 +486,9 @@ public class MethodParameter {
 		if (paramType != null) {
 			return paramType;
 		}
-		paramType = ResolvableType.forMethodParameter(this, null, 1).resolve();
+		if (getContainingClass() != getDeclaringClass()) {
+			paramType = ResolvableType.forMethodParameter(this, null, 1).resolve();
+		}
 		if (paramType == null) {
 			paramType = computeParameterType();
 		}