Fix XML serializing
@@ -58,6 +58,7 @@ abstract class ThrowableProxyWithStacktraceAsStringMixIn {
public abstract String getCauseStackTraceAsString();
@JsonProperty(JsonConstants.ELT_EXTENDED_STACK_TRACE)
+ @JacksonXmlProperty(namespace = XmlConstants.XML_NAMESPACE, localName = XmlConstants.ELT_EXTENDED_STACK_TRACE)
public abstract String getExtendedStackTraceAsString();
@JsonIgnore
