Java from Xquery

I am try to call java method from Oracle XQUERY using OJXQI on middle tier
XQueryContext ctx = new XQueryContext();
try
String str = "declare namespace m=\"java:java.lang.Math\"; \n"
" let $r:=m:random() \n"
" return $r";
// prepare the query
PreparedXQuery xq = ctx.prepareXQuery(strm);
// get a resultset
XQueryResultSet rset = xq.executeQuery();
But I get errors that method with parameters not found.
Is this the correct way to call java from oracle Xquery?
Any help on that is appreciated ?

The OJXQI API is an outdated early prototype before we released a much more scalable database-native XQuery implementation in Oralce Database 10g Release 2 last year. If your use case allows, you can use JDBC to access database-native Oracle XQuery.
Regards,
Geoff

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