Null query string in servlet filter with OC4J 10.1.3.1.0

I have a strange problem with OC4J 10.1.3.1.0. In the servlet filter, while requesting the querystring with HttpServletRequest.getQueryString the result is null, even if it is verified with a sniffer that that query string is there. This happens only with certain requests. The query string is long but nothing very special otherwise.
Any ideas what might be wrong?
Thanks,
Mika

I got the same problem. I tried in others application servers alternatives and it works. By now i have to change links like this "http://localhost:8888/SIVIUQ/LoadIndex.portal?test=1" for forms using javaScript to send the parameters corresponding to the button pressed. To use buttons instead links is not the better solution due to usability. Any suggestion to solve this problem?
Thanks
Javier Murcia
Yo tengo el mismo problema. He intentado con otros servidores de aplicaciones y funciona. Por ahora tengo que cambiar links como "http://localhost:8888/SIVIUQ/LoadIndex.portal?test=1" por formularios, usando javaScript para enviar los parametros correspondientes al boton presionado. Usar botones en vez de links no es la mejor solucion debido a usabilidad. ¿Alguna sugerencia para resolver este problema?
Gracias
Javier Murcia

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================
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================
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