we have the following page that renders a pdf:
public BillPdf(PageParameters pageParameters) {
...
public BillPdf(PageParameters pageParameters) {
getRequestCycle().scheduleRequestHandlerAfterCurrent(
new ResourceRequestHandler(new
ByteArrayResource(MIME_PDF) {
private static final long
serialVersionUID = -6932336945497418950L;
private byte[] pdfData = null;
@Override
protected byte[]
getData(IResource.Attributes attributes){
...
return pdfData;
}
@Override
protected void
configureResponse(AbstractResource.ResourceResponse
response, IResource.Attributes attributes) {
response.setContentDisposition(ContentDisposition.INLINE);
response.setContentType(MIME_PDF);
response.setContentLength(pdfData.length);
}
}, pageParameters));
}
}
and from time to time for some pdfs we have:
java.lang.IllegalStateException: Response already committed
at
weblogic.servlet.internal.ServletResponseImpl.objectIfCommitted(ServletResponseImpl.java:1651)
at
weblogic.servlet.internal.ServletResponseImpl.sendRedirect(ServletResponseImpl.java:871)
at
weblogic.servlet.internal.ServletResponseImpl.sendRedirect(ServletResponseImpl.java:867)
at
org.apache.wicket.protocol.http.servlet.ServletWebResponse.sendRedirect(ServletWebResponse.java:268)
at
org.apache.wicket.protocol.http.HeaderBufferingWebResponse.sendRedirect(HeaderBufferingWebResponse.java:117)
at
org.apache.wicket.request.handler.render.WebPageRenderer.redirectTo(WebPageRenderer.java:150)
at
org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:286)
at
org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:165)
at
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:840)
at
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:303)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:312)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:312)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:312)
at
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:226)
at
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:282)
at
org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:244)
at
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:267)
at
weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:74)
at
weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3288)
at
weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3254)
at
weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at
weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
at
weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2163)
at
weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2089)
at
weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2074)
at
weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1513)
at
weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:254)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
Any related treads or ideas?
We're using wicket 6.0 but we've tried even with 6.5.
The problem is in HeaderBufferingWebResponse
...
@Override
public void setDateHeader(String name, Time date)
{
Args.notNull(date, "date");
*checkHeader();*
bufferedResponse.setDateHeader(name, date);
}
[4:14:27 PM] Cornel Condila: private void checkHeader()
{
if (*bufferedWritten*)
{
throw new IllegalStateException("Header was already written to
response!");
}
}
....
*bufferedWritten* is sometimes true;
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