Weblogic POST requests and foreign characters

Question

We have Ajax post requests that work correctly in the Tomcat/Eclpse development environment. When moving them to the Weblogic environmnent, the POST requests no longer correctly send the data.
A request object is created with a URL. The foreign character string is encoded using the Javascript encodeURIComponent.
The request is sent to the servlet.
When the servletbase class starts the parameter is printed and shows ????.
On the Tomcat environment the servletbase (which extends HttpServlet) class shows the parameter as what looks like a UTF-8 string.

Answer 1

Have you tried seeing what ServletRequest.getCharacterEncoding() returns on both Tomcat / WebLogic?
http://download.oracle.com/docs/cd/E17410_01/javaee/6/api/javax/servlet/ServletRequest.html#getCharacterEncoding()