hi, I need some help please. I m trying to execute this xupdate query
_________ <xupdate:modifications version="1.0" xmlns:rdf="http://www.w3.org/1999/02/22-rf-syntax-ns#" xmlns:xupdate="http://www.xmldb.org/xupdate" > <xupdate:append select="//root"> <xupdate:element name="component"> <data rdf:about="uuuu"> <first>x</first> <last>y</last> </data> </xupdate:element> </xupdate:append> </xupdate:modifications> _________________ xml document : <?xml version=\"1.0\"?> <root> </root> _______________________ and i am getting this exception from xindice. DEBUG> java.lang.NullPointerException at org.xmldb.xupdate.lexus.commands.InsertAttribute.execute(InsertAttrib ute.java:96) at org.xmldb.xupdate.lexus.commands.InsertCommand.executeInstruction(Ins ertCommand.java:175) at org.apache.xindice.core.xupdate.XUpdateImpl.execute(XUpdateImpl.java: 152) at org.apache.xindice.core.xupdate.XUpdateQueryResolver$XUpdateQuery.exe cute(XUpdateQueryResolver.java:163) at org.apache.xindice.core.xupdate.XUpdateQueryResolver.query(XUpdateQue ryResolver.java:106) at org.apache.xindice.core.query.QueryEngine.query(QueryEngine.java:147) at org.apache.xindice.core.Collection.queryDocument(Collection.java:867) at org.apache.xindice.client.corba.CollectionServant.queryDocument(Colle ctionServant.java:451) at org.apache.xindice.client.corba.db.CollectionPOA._invoke(CollectionPO A.java:355) at org.openorb.adapter.poa.POA.dispatch(POA.java:975) at org.openorb.net.AbstractServerRequest.dispatch(AbstractServerRequest. java:750) at org.openorb.net.ServerManagerImpl.serve_request(ServerManagerImpl.jav a:1467) at org.openorb.net.ServerManagerImpl.thread_pool_main(ServerManagerImpl. java:1410) at org.openorb.net.ServerManagerImpl.access$200(ServerManagerImpl.java:7 7) at org.openorb.net.ServerManagerImpl$PoolThread.run(ServerManagerImpl.ja va:1557)