Fix test javadoc and adhere better to junit 5 style

src/test/java/org/mybatis/spring/SqlSessionTemplateTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2024 the original author or authors.
+ * Copyright 2010-2025 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.
@@ -34,6 +34,7 @@
 
 // tests basic usage and implementation only
 // MapperFactoryBeanTest handles testing the transactional functions in SqlSessionTemplate
+// Method is public as extended by other test classes outside this package
 public class SqlSessionTemplateTest extends AbstractMyBatisSpringTest {
 
   private static SqlSession sqlSessionTemplate;

src/test/java/org/mybatis/spring/filter/ScanFilterTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2024 the original author or authors.
+ * Copyright 2010-2025 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.
@@ -31,7 +31,7 @@
 /**
  * test the function of excludeFilters in @MapperScan
  */
-public class ScanFilterTest {
+class ScanFilterTest {
 
   private AnnotationConfigApplicationContext applicationContext;
 

src/test/java/org/mybatis/spring/filter/xml/XmlScanFilterTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2024 the original author or authors.
+ * Copyright 2010-2025 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.
@@ -24,9 +24,9 @@
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
 /**
- * test the function of excludeFilters in <mybatis:scan/>
+ * test the function of excludeFilters in <code><mybatis:scan/></code>.
  */
-public class XmlScanFilterTest {
+class XmlScanFilterTest {
 
   private ClassPathXmlApplicationContext applicationContext;