diff --git a/spring-tx/src/test/java/org/springframework/transaction/interceptor/RollbackRuleAttributeTests.java b/spring-tx/src/test/java/org/springframework/transaction/interceptor/RollbackRuleAttributeTests.java
index 488ca91451..fd05ff6755 100644
--- a/spring-tx/src/test/java/org/springframework/transaction/interceptor/RollbackRuleAttributeTests.java
+++ b/spring-tx/src/test/java/org/springframework/transaction/interceptor/RollbackRuleAttributeTests.java
@@ -106,11 +106,13 @@ class RollbackRuleAttributeTests {
 		}
 	}
 
+	@SuppressWarnings("serial")
 	static class MyException extends RuntimeException {
 	}
 
 	// Name intentionally starts with MyException (including package) but does
 	// NOT extend MyException.
+	@SuppressWarnings("serial")
 	static class MyException2 extends RuntimeException {
 	}