Fix #262

Author: cowtowncoder

release-notes/CREDITS-2.x

@@ -77,6 +77,11 @@ Eric Schoonover (spoon16@github)
   matches `@JacksonXmlRootElement` localName
  (2.12.0)
 
+Dave Jarvis (DaveJarvis@github)
+
+* Requested #262: Make `ToXmlGenerator` non-final
+ (2.12.0)
+
 Joseph Petersen (jetersen@github)
 
 * Reported #273: Input mismatch with case-insensitive properties

release-notes/VERSION-2.x

@@ -6,6 +6,8 @@ Project: jackson-dataformat-xml
 
 2.12.0 (not yet released)
 
+#262: Make `ToXmlGenerator` non-final
+ (requested by Dave J)
 #273: Input mismatch with case-insensitive properties
  (reported by Joseph P)
 #318: XMLMapper fails to deserialize null (POJO reference) from blank tag

src/main/java/com/fasterxml/jackson/dataformat/xml/ser/ToXmlGenerator.java

@@ -27,7 +27,8 @@
  * additional configuration calls beyond regular {@link JsonGenerator} API,
  * mostly to pass namespace information.
  */
-public final class ToXmlGenerator
+public class ToXmlGenerator
+// non-final since 2.12 but only sub-class if you really know what you are doing...
     extends GeneratorBase
 {
     /**