Polish PORT_PATTERN in UriComponentsBuilder

Author: izeye

spring-web/src/main/java/org/springframework/web/util/UriComponentsBuilder.java

@@ -85,7 +85,7 @@ public class UriComponentsBuilder implements UriBuilder, Cloneable {
 
 	private static final String HOST_PATTERN = "(" + HOST_IPV6_PATTERN + "|" + HOST_IPV4_PATTERN + ")";
 
-	private static final String PORT_PATTERN = "(.[^/?#]*(?:\\{[^/]+?})?)";
+	private static final String PORT_PATTERN = "([^/?#]*)";
 
 	private static final String PATH_PATTERN = "([^?#]*)";