Update Javadoc re: minimum JUnit 4.9 dependency

spring-test/src/main/java/org/springframework/test/context/junit4/AbstractJUnit4SpringContextTests.java

@@ -33,8 +33,8 @@ import org.springframework.test.context.web.ServletTestExecutionListener;
 
 /**
  * Abstract base test class which integrates the <em>Spring TestContext
- * Framework</em> with explicit {@link ApplicationContext} testing support in a
- * <strong>JUnit 4.9+</strong> environment.
+ * Framework</em> with explicit {@link ApplicationContext} testing support
+ * in a JUnit environment.
  *
  * <p>Concrete subclasses should typically declare a class-level
  * {@link ContextConfiguration &#064;ContextConfiguration} annotation to
@@ -62,6 +62,8 @@ import org.springframework.test.context.web.ServletTestExecutionListener;
  * &#064;ContextConfiguration}, {@link TestExecutionListeners
  * &#064;TestExecutionListeners}, etc.
  *
+ * <p><strong>NOTE:</strong> As of Spring Framework 4.1, this class requires JUnit 4.9 or higher.
+ *
  * @author Sam Brannen
  * @since 2.5
  * @see ContextConfiguration

spring-test/src/main/java/org/springframework/test/context/junit4/AbstractTransactionalJUnit4SpringContextTests.java

@@ -57,6 +57,8 @@ import org.springframework.transaction.annotation.Transactional;
  * @TestExecutionListeners}, {@link Transactional @Transactional},
  * etc.
  *
+ * <p><strong>NOTE:</strong> As of Spring Framework 4.1, this class requires JUnit 4.9 or higher.
+ *
  * @author Sam Brannen
  * @author Juergen Hoeller
  * @since 2.5

spring-test/src/main/java/org/springframework/test/context/junit4/SpringJUnit4ClassRunner.java

@@ -70,13 +70,14 @@ import org.springframework.util.ReflectionUtils;
  * <li>{@link org.springframework.test.annotation.IfProfileValue @IfProfileValue}</li>
  * </ul>
  *
- * <p><strong>NOTE:</strong> As of Spring 4.1, {@code SpringJUnit4ClassRunner}
- * requires JUnit 4.9 or higher.
+ * <p><strong>NOTE:</strong> As of Spring Framework 4.1, this class requires JUnit 4.9 or higher.
  *
  * @author Sam Brannen
  * @author Juergen Hoeller
  * @since 2.5
  * @see TestContextManager
+ * @see AbstractJUnit4SpringContextTests
+ * @see AbstractTransactionalJUnit4SpringContextTests
  */
 @SuppressWarnings("deprecation")
 public class SpringJUnit4ClassRunner extends BlockJUnit4ClassRunner {