When attempting to direct to an error page based in a 404, 500, or other error the default Glassfish error screen is shown instead of the error page. The following error is thrown after the normal error (FacesException/FileNotFoundException):

ApplicationDispatcher[/dv_lite] PWC1231: Servlet.service() for servlet jsp threw exception
java.lang.IllegalStateException: PWC3991: getOutputStream() has already been called for this response
        at org.apache.coyote.tomcat5.CoyoteResponse.getWriter(CoyoteResponse.java:717)
        at org.apache.coyote.tomcat5.CoyoteResponseFacade.getWriter(CoyoteResponseFacade.java:226)
        at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:187)
        at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:180)
        at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:237)
        at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:173)
        at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:124)
        at org.apache.jsp.error.error_jsp._jspService(error_jsp.java:98)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:109)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:389)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
        at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:427)
        at org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:875)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:723)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:560)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:490)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:382)
        at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:549)
        at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:339)
        at org.apache.catalina.core.StandardHostValve.postInvoke(StandardHostValve.java:247)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:649)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096)
        at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:288)
        at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:647)
        at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:579)
        at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:831)
        at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
        at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
        at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
        at com.sun.enterprise.web.portunif.PortUnificationPipeline$PUTask.doTask(PortUnificationPipeline.java:380)
        at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)
        at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)