创建QName时,本地部分不能为"null"

Question

我们正试图追查一个错误.我们在日志中收到上述错误.

任何人都可以解释这个消息的含义吗 获取此消息有任何典型原因吗？

堆栈跟踪是:

org.apache.axiom.om.OMException: java.lang.IllegalArgumentException: local part cannot be "null" when creating a QName
            at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:206)
            at org.apache.axiom.om.impl.llom.OMNodeImpl.build(OMNodeImpl.java:318)
            at org.apache.axiom.om.impl.llom.OMElementImpl.build(OMElementImpl.java:618)
            at org.apache.axis2.jaxws.message.util.impl.SAAJConverterImpl.toOM(SAAJConverterImpl.java:147)
            at org.apache.axis2.jaxws.message.impl.XMLPartImpl._convertSE2OM(XMLPartImpl.java:77)
            at org.apache.axis2.jaxws.message.impl.XMLPartBase.getContentAsOMElement(XMLPartBase.java:203)
            at org.apache.axis2.jaxws.message.impl.XMLPartBase.getAsOMElement(XMLPartBase.java:255)
            at org.apache.axis2.jaxws.message.impl.MessageImpl.getAsOMElement(MessageImpl.java:464)
            at org.apache.axis2.jaxws.message.util.MessageUtils.putMessageOnMessageContext(MessageUtils.java:202)
            at org.apache.axis2.jaxws.core.controller.AxisInvocationController.prepareRequest(AxisInvocationController.java:370)
            at org.apache.axis2.jaxws.core.controller.InvocationController.invoke(InvocationController.java:120)
            at org.apache.axis2.jaxws.client.proxy.JAXWSProxyHandler.invokeSEIMethod(JAXWSProxyHandler.java:317)
            at org.apache.axis2.jaxws.client.proxy.JAXWSProxyHandler.invoke(JAXWSProxyHandler.java:148)

Answer 1

在尝试从String构造org.w3c.dom.Document时,我得到了相同的错误消息(创建QName时本地部分不能为"null").在DocumentBuilderFactory上调用setNamespaceAware(true)后,问题就消失了.下面给出了工作代码段.

private static Document getDocumentFromString(final String xmlContent)
  throws Exception
{
    DocumentBuilderFactory documentBuilderFactory =
                                DocumentBuilderFactory.newInstance();
    documentBuilderFactory.setNamespaceAware(true);
    try
    {
        return documentBuilderFactory
                    .newDocumentBuilder()
                    .parse(new InputSource(new StringReader(xmlContent)));
    }
    catch (Exception e)
    {
        throw new RuntimeException(e);
    }
}