final XmlWriter writer = new XmlWriter(new OutputStreamWriter(outputStream, encoding),
new DefaultTagDescription(ClassicEngineBoot.getInstance().getGlobalConfig(), BundleXmlModule.TAG_DEF_PREFIX));
writer.writeXmlDeclaration(encoding);
final AttributeList rootAttributes = new AttributeList();
rootAttributes.addNamespaceDeclaration("", ClassicEngineBoot.DATASCHEMA_NAMESPACE);
rootAttributes.addNamespaceDeclaration("core", MetaAttributeNames.Core.NAMESPACE);
rootAttributes.addNamespaceDeclaration("database", MetaAttributeNames.Database.NAMESPACE);
rootAttributes.addNamespaceDeclaration("expressions", MetaAttributeNames.Expressions.NAMESPACE);
rootAttributes.addNamespaceDeclaration("formatting", MetaAttributeNames.Formatting.NAMESPACE);
rootAttributes.addNamespaceDeclaration("numeric", MetaAttributeNames.Numeric.NAMESPACE);