Version7.0.4 question

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: java.lang.IllegalStateException: VaadinServiceSession has already been set. Old session: com.vaadin.server.VaadinSession@1d830ca for VaadinServlet. New session: com.vaadin.server.VaadinSession@6b2b07 for VaadinServlet.
com.vaadin.server.VaadinServlet.handleServiceException(VaadinServlet.java:580)
com.vaadin.server.VaadinServlet.service(VaadinServlet.java:343)
com.vaadin.server.VaadinServlet.service(VaadinServlet.java:201)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause

java.lang.IllegalStateException: VaadinServiceSession has already been set. Old session: com.vaadin.server.VaadinSession@1d830ca for VaadinServlet. New session: com.vaadin.server.VaadinSession@6b2b07 for VaadinServlet.
com.vaadin.ui.UI.setSession(UI.java:342)
com.vaadin.server.AbstractCommunicationManager.getBrowserDetailsUI(AbstractCommunicationManager.java:2462)
com.vaadin.server.AbstractCommunicationManager.handleBrowserDetailsRequest(AbstractCommunicationManager.java:2362)
com.vaadin.server.VaadinServlet.service(VaadinServlet.java:325)
com.vaadin.server.VaadinServlet.service(VaadinServlet.java:201)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.13 logs.

Apache Tomcat/6.0.13