Update major/minor version properties in MockServletContext

ServletContext has sets of major/minor version properties that we have
not updated in MockServletContext in several years.

Since we upgraded the baseline to Servlet 6.0 in Spring Framework 6.0,
now seems like a good time to update those version properties.

Closes gh-30395

spring-test/src/main/java/org/springframework/mock/web/MockServletContext.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 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.
@@ -111,13 +111,13 @@ public class MockServletContext implements ServletContext {
 
 	private final Map<String, ServletContext> contexts = new HashMap<>();
 
-	private int majorVersion = 3;
+	private int majorVersion = 6;
 
-	private int minorVersion = 1;
+	private int minorVersion = 0;
 
-	private int effectiveMajorVersion = 3;
+	private int effectiveMajorVersion = 6;
 
-	private int effectiveMinorVersion = 1;
+	private int effectiveMinorVersion = 0;
 
 	private final Map<String, RequestDispatcher> namedRequestDispatchers = new HashMap<>();
 

spring-test/src/test/java/org/springframework/mock/web/MockServletContextTests.java

@@ -105,10 +105,10 @@ void getMimeTypeWithCustomConfiguredType() {
 
 		@Test
 		void servletVersion() {
-			assertThat(servletContext.getMajorVersion()).isEqualTo(3);
-			assertThat(servletContext.getMinorVersion()).isEqualTo(1);
-			assertThat(servletContext.getEffectiveMajorVersion()).isEqualTo(3);
-			assertThat(servletContext.getEffectiveMinorVersion()).isEqualTo(1);
+			assertThat(servletContext.getMajorVersion()).isEqualTo(6);
+			assertThat(servletContext.getMinorVersion()).isEqualTo(0);
+			assertThat(servletContext.getEffectiveMajorVersion()).isEqualTo(6);
+			assertThat(servletContext.getEffectiveMinorVersion()).isEqualTo(0);
 
 			servletContext.setMajorVersion(4);
 			servletContext.setMinorVersion(0);

spring-web/src/testFixtures/java/org/springframework/web/testfixture/servlet/MockServletContext.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 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.
@@ -111,13 +111,13 @@ public class MockServletContext implements ServletContext {
 
 	private final Map<String, ServletContext> contexts = new HashMap<>();
 
-	private int majorVersion = 3;
+	private int majorVersion = 6;
 
-	private int minorVersion = 1;
+	private int minorVersion = 0;
 
-	private int effectiveMajorVersion = 3;
+	private int effectiveMajorVersion = 6;
 
-	private int effectiveMinorVersion = 1;
+	private int effectiveMinorVersion = 0;
 
 	private final Map<String, RequestDispatcher> namedRequestDispatchers = new HashMap<>();