HttpServletRequest.getQueryString() returns null for forwarded requests ----------------------------------------------------------------------- Key: WFLY-2284 URL: https://issues.jboss.org/browse/WFLY-2284 Project: WildFly Issue Type: Bug Security Level: Public(Everyone can see) Components: Web (Undertow) Affects Versions: 8.0.0.Beta1 Reporter: Christian Kaltepoth Assignee: Stuart Douglas Fix For: 8.0.0.CR1 Attachments: forward-query.zip When a request gets forwarded to another Servlet, {{HttpServletRequest.getQueryString()}} returns null, even if the original request contains query parameters. From Servlet 3.1 spec 9.4.1: {quote} The request dispatching mechanism is responsible for aggregating query string parameters when forwarding or including requests. {quote} The attached sample project demonstrates the problem: If you request {{/first?foo=bar}}, the corresponding servlet will forward the request to {{/second}}. The second servlet will get these values: {code} request.getRequestURI(): /forward-query/second request.getParameter("foo"): bar request.getQueryString(): null {code} In JBoss AS 7.1.1 and Tomcat the result looks like this: {code} request.getRequestURI(): /forward-query/second request.getParameter("foo"): bar request.getQueryString(): foo=bar {code}