Help with error (apache tomcat + java )

Question

hi all ! Im having an issue with my program.
Im using jasper report to generate some reports from the program... everything seems to work except for this (making the program unstable at some point). When the report is generated and loaded as a pdf I get this error in the log.
java.lang.IllegalStateException
at org.apache.coyote.Response.reset(Response.java:296)
at org.apache.catalina.connector.Response.reset(Response.java:642)
at org.apache.catalina.connector.Response.reset(Response.java:908)
at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:355)
at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:211)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:134)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:736)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:619)
The code Im using to generate the pdf is this one.
File file = new File("C:\\Reportes\\", reporte +""+ datNac +".pdf");
String contentType = getServletContext().getMimeType(reporte+ "" +datNac+ ".pdf");
System.out.println("antes BufferedOutputStream");
BufferedOutputStream output = null;
output = new BufferedOutputStream(response.getOutputStream());
BufferedInputStream inputFile = null;
inputFile = new BufferedInputStream(new FileInputStream(file));
response.reset();
response.setContentType(contentType);
response.setContentLength((int) file.length());
response.setHeader("Content-disposition",
"attachment; filename=\"" +file.getName()+ "\"");
System.out.println("BufferedOutputStream");
byte[] buffer = new byte[10240];
for (int length; (length = inputFile.read(buffer)) != -1;) {
output.write(buffer, 0, length);
inputFile.close();
output.close();Any help is appreciated.
Thanks!
Edited by: juanmanuelsanchez on Aug 4, 2009 11:17 AM
Edited by: juanmanuelsanchez on Aug 4, 2009 11:18 AM
Edited by: juanmanuelsanchez on Aug 4, 2009 11:19 AM

Answer 1

juanmanuelsanchez wrote:
java.lang.IllegalStateException
at org.apache.coyote.Response.reset(Response.java:296)The response is already committed and thus cannot be reset anymore.
output = new BufferedOutputStream(response.getOutputStream());
response.reset();At least you should obtain the outputstream AFTER the reset. If that doesn't fix, then check everything in the chain before this code.