import com.sun.org.apache.xerces.internal.dom.DocumentImpl; //导入依赖的package包/类
@Override
public void writeStartDocument(String encoding, String version, boolean standalone, boolean standaloneSet) throws XMLStreamException {
    if (encoding != null && ownerDoc.getClass().isAssignableFrom(DocumentImpl.class)) {
        ((DocumentImpl)ownerDoc).setXmlEncoding(encoding);
    }

    ownerDoc.setXmlVersion(version);

    if (standaloneSet) {
        ownerDoc.setXmlStandalone(standalone);
    }
}
 

import com.sun.org.apache.xerces.internal.dom.DocumentImpl; //导入依赖的package包/类
private void loadUserConfig() throws Exception {
	String packagePath = getPackageName().replace('.', File.separatorChar);
	m_configFile = new File(getSourceDirectory(), packagePath + File.separatorChar + "genHib.xml");
	if(m_configFile.exists()) {
		m_configDocument = DomTools.getDocument(m_configFile, false);
		m_configRoot = DomTools.getRootElement(m_configDocument);
	} else {
		Document xmlDoc = m_configDocument = new DocumentImpl();
		m_configRoot = xmlDoc.createElement("config");
		xmlDoc.appendChild(m_configRoot);
	}
}