polish unit test for spring-integration-jpa

Signed-off-by: Jiandong Ma <[email protected]>

Author: mjd507

spring-integration-jpa/src/main/java/org/springframework/integration/jpa/core/JpaExecutor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 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.
@@ -569,7 +569,7 @@ else if (this.entityClass != null) {
 		else {
 			throw new IllegalStateException("For the polling operation, one of "
 					+ "the following properties must be specified: "
-					+ "query, namedQuery or entityClass.");
+					+ "jpaQuery, nativeQuery, namedQuery or entityClass.");
 		}
 		return payload;
 	}