Error in generating report

[Bruno Santos]

I'm trying to generate a report using JaperReports, but when I click
generate the following error appears in eclipse:

[WARN] /seringueira/resumosafra
java.lang.RuntimeException: Unable to report failure
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doUnexpectedFailure(AbstractRemoteServiceServlet.java:107)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)
Caused by: java.io.IOException: Closed
at org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:627)
at org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:587)
at com.google.gwt.user.server.rpc.RPCServletUtils.writeResponse(RPCServletUtils.java:330)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.writeResponse(RemoteServiceServlet.java:352)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:251)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
... 19 more

In class Impl I use the following:

if(bytes != null && bytes.length > 0) {
getThreadLocalResponse().setContentType("application/pdf");
getThreadLocalResponse().setContentLength(bytes.length);
try {
ServletOutputStream ouputStream = getThreadLocalResponse().getOutputStream();
ouputStream.write(bytes, 0, bytes.length);
ouputStream.flush();
ouputStream.close();
} catch(Exception ex) {
ex.getMessage();
}
}

Does anyone have any idea what I might be doing wrong?

[Didier DURAND]

Hi Bruno,

Remove the flush(): your duty is to fill up the stream with the
content to deliver . Later on, the servlet handler to which you give
the response (incl the stream) back will flush it back to the
browser.

regards
didier

[Bruno Santos]

Thanks for the reply Didier, I removed the flush(), but the error persists.