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Fine-tuned assertions and related polishing

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This commit is contained in:
Juergen Hoeller
2018-05-05 14:39:43 +02:00
parent e17fc8d607
commit c9f488363d
13 changed files with 86 additions and 125 deletions
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2
spring-web/src/main/java/org/springframework/http/HttpHeaders.java
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@@ -414,7 +414,6 @@ public class HttpHeaders implements MultiValueMap<String, String>, Serializable
* Private constructor that can create read-only {@code HttpHeader} instances.
*/
private HttpHeaders(Map<String, List<String>> headers, boolean readOnly) {
Assert.notNull(headers, "'headers' must not be null");
if (readOnly) {
Map<String, List<String>> map = new LinkedCaseInsensitiveMap<>(headers.size(), Locale.ENGLISH);
headers.forEach((key, valueList) -> map.put(key, Collections.unmodifiableList(valueList)));
@@ -1556,6 +1555,7 @@ public class HttpHeaders implements MultiValueMap<String, String>, Serializable
* Return a {@code HttpHeaders} object that can only be read, not written to.
*/
public static HttpHeaders readOnlyHttpHeaders(HttpHeaders headers) {
Assert.notNull(headers, "HttpHeaders must not be null");
return (headers.readOnly ? headers : new HttpHeaders(headers, true));
}