Polish contribution

See gh-27586

Author: sbrannen

spring-web/src/main/java/org/springframework/http/HttpEntity.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 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.
@@ -23,12 +23,12 @@
 /**
  * Represents an HTTP request or response entity, consisting of headers and body.
  *
- * <p>Typically used in combination with the {@link org.springframework.web.client.RestTemplate},
+ * <p>Often used in combination with the {@link org.springframework.web.client.RestTemplate},
  * like so:
  * <pre class="code">
  * HttpHeaders headers = new HttpHeaders();
  * headers.setContentType(MediaType.TEXT_PLAIN);
- * HttpEntity&lt;String&gt; entity = new HttpEntity&lt;String&gt;("helloWorld", headers);
+ * HttpEntity&lt;String&gt; entity = new HttpEntity&lt;&gt;("Hello World", headers);
  * URI location = template.postForLocation("https://example.com", entity);
  * </pre>
  * or
@@ -39,11 +39,11 @@
  * </pre>
  * Can also be used in Spring MVC, as a return value from a @Controller method:
  * <pre class="code">
- * &#64;RequestMapping("/handle")
+ * &#64;GetMapping("/handle")
  * public HttpEntity&lt;String&gt; handle() {
  *   HttpHeaders responseHeaders = new HttpHeaders();
  *   responseHeaders.set("MyResponseHeader", "MyValue");
- *   return new HttpEntity&lt;String&gt;("Hello World", responseHeaders);
+ *   return new HttpEntity&lt;&gt;("Hello World", responseHeaders);
  * }
  * </pre>
  *