servet request parameters are not decoded properly

[arinban]

My web application is working on Glassfish V4．1.1.
The following JSP page has this problem.

<%@ page contentType="text/html; charset=shift_jis" %>
Hello:<%= request.getParameter("username")%>.

When you enter some name which consists of 2-byte UTF charaters,
the page does not show the entered string properly.
The exactly same JSP works fine with V2.

Example of request:
http://localhost:28081/5675/ServletFilter?username=%90%D4%90F
test result : Hello:赤?F

the test result of V2: Hello:赤色

I hava provided the reproducer(5675.war).
5675.zip

[arinban]

• Issue Imported From: servet request parameters are not decoded properly javaee/grizzly#1991
• Original Issue Raised By:@caim2015
• **Original Issue Assigned To:**Unassigned