Polish "Simplify code"

See gh-23111

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/filter/AnnotationCustomizableTypeExcludeFilter.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/web/servlet/WebDriverContextCustomizerFactory.java

@@ -53,7 +53,10 @@ class WebDriverContextCustomizerFactory implements ContextCustomizerFactory {
 			if (obj == this) {
 				return true;
 			}
-			return obj != null && obj.getClass() == getClass();
+			if (obj == null || obj.getClass() != getClass()) {
+				return false;
+			}
+			return true;
 		}
 
 		@Override