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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=14875 NullPointerException in XPath API ------- Additional Comments From [EMAIL PROTECTED] 2002-12-09 22:06 ------- You should NOT use XPathAPI in your extension element. XPathAPI creates its own DTMManager, which is different from the one used for the original document. You can replace the call xpathNodes = XPathAPI.selectNodeList(context.getContextNode(), xpathQuery); by something like this: XPathContext xpathContext = context.getTransformer ().getXPathContext(); XPath xpath = new XPath(xpathQuery, null, xpathContext.getNamespaceContext(), XPath.SELECT); XObject object = xpath.execute(xpathContext, xpathContext.getContextNode(), xpathContext.getNamespaceContext()); xpathNodes = object.nodelist(); Also you cannot create a new element under the extElement. You can use a DocumentBuilder to create it instead.
