prolog中不允许有内容

com.thoughtworks.xstream.io.StreamException:  : prolog 中不允许有内容。
at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:65)
at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:47)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:820)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:812)
at com.yonyou.uap.um.licence.RegexConfigHandle.load(RegexConfigHandle.java:34)
at com.yonyou.uap.um.licence.RegexConfigHandle.getRegexConfig(RegexConfigHandle.java:40)
at com.yonyou.uap.um.licence.LicenceController.validateHandler(LicenceController.java:85)
at com.yonyou.uap.um.licence.LicenceController.validate(LicenceController.java:78)
at com.yonyou.uap.ump.server.UmpDispatcherServlet.handlerRequest(UmpDispatcherServlet.java:139)
at com.yonyou.uap.um.servlet.AbstractUMServlet.doPost(AbstractUMServlet.java:174)

问题分析
App请求MA时报如下错误，经过分析发现是JDK版本兼容问题。

解决方案
请使用官方推荐的JDK1.6_45版本。