Erro ireport jasper

Programação
#1

Pessoal me ajuda, to com erro na hr de gerar um relatorio, segue o erro

FATAL: JSF1073: java.lang.IllegalStateException obtido durante o processamento de RENDER_RESPONSE 6: UIComponent-ClientId=, Message=getOutputStream() has already been called for this response FATAL: getOutputStream() has already been called for this response java.lang.IllegalStateException: getOutputStream() has already been called for this response at org.apache.catalina.connector.Response.getWriter(Response.java:777) at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:224) at com.sun.faces.context.ExternalContextImpl.getResponseOutputWriter(ExternalContextImpl.java:851) at com.sun.faces.application.view.FaceletViewHandlingStrategy.createResponseWriter(FaceletViewHandlingStrategy.java:1208) at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:405) at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:134) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:659) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:416) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:283) at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167) at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206) at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180) at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235) at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200) at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132) at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111) at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:536) at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571) at java.lang.Thread.run(Thread.java:745)

segue minha classe que gera o relatorio

`/*

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  • To change this template file, choose Tools | Templates
  • and open the template in the editor.
    */
    package Util;

import java.io.InputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.faces.context.FacesContext;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;

/**
*

  • @author Felipee
    */
    public class GeraRelatorio {
    public void relatorioUSALL(List lista,String tipo,Map param) {
    try {
    FacesContext context = FacesContext.getCurrentInstance();
    HttpServletResponse response = (HttpServletResponse) context
    .getExternalContext().getResponse();
    ServletOutputStream responseStream = response.getOutputStream();
    // caminho do jrxml

     	InputStream pathjrxml = getClass().getResourceAsStream("../Reports/" + tipo + ".jrxml");
 	response.setContentType("text/html");  
                 
 	response.setHeader("Content-Disposition","attachment; filename=\"relatorio.pdf\"");
                 
 	JasperReport pathReport = JasperCompileManager
 			.compileReport(pathjrxml);
                 JRBeanCollectionDataSource jrDT = new JRBeanCollectionDataSource(lista);
 	JasperPrint print = JasperFillManager.fillReport(pathReport, param,jrDT);
                 
                 
 	JasperExportManager.exportReportToPdfStream(print, responseStream);

 	responseStream.flush();
 	responseStream.close();
 	context.renderResponse();
 	context.responseComplete();
 } catch (Exception e) {
 	e.printStackTrace();
 }

    }

}

`