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https://sourceforge.net/forum/message.php?msg_id=4952648
By: djbo
Hi,
A little problem I noticed when I started to use the export functionality of
DisplayTags.
My table displays perfectly on screen. When I click the "PDF" link to export
it, my tomcat logs the following:
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for
this response
at org.apache.catalina.connector.Response.getWriter(Response.java:610)
at
org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:1
98)
at
org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125)
at
org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118)
at
org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:186)
at
org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFacto
ryImpl.java:118)
at
org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.j
ava:77)
at
org.apache.jsp.jsp.employee_005flist_jsp._jspService(employee_005flist_jsp.j
ava:261)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3
74)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:175)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102
)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at
org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:419)
at
org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProt
ocol.java:378)
at
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
at java.lang.Thread.run(Thread.java:619)
Any suggestions on getting rid of this?
Thanks in advance,
Rory
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