java.lang.IllegalStateException: getOutputStream() - Tomcat 4.1.18

["Chakravarthy, Sundar" <sc...@doas.ga.gov>]

I have a jsp that writes documents out to the browser , using a HREF
something like readfile.jsp?FileID=101

Although readfile.jsp works, it consistently logs the following error.

Could someone tell me why ? Thanks.

----- Root Cause -----
java.lang.IllegalStateException: getOutputStream() has already been
called for this response
        at
org.apache.coyote.tomcat4.CoyoteResponse.getWriter(CoyoteResponse.java:6
14)
        at
org.apache.coyote.tomcat4.CoyoteResponseFacade.getWriter(CoyoteResponseF
acade.java:173)
        at
org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:173)
        at
org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:1
66)
        at
org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:1
84)
        at
org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspF
actoryImpl.java:198)
        at
org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryIm
pl.java:193)
        at
org.apache.jsp.readfile_jsp._jspService(readfile_jsp.java:308)
        at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja
va:204)
        at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
        at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:247)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:193)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:260)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
        at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
        at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:241
5)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:180)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
        at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherVa
lve.java:170)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:641)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:172)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:641)


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