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The moose likes Servlets and the fly likes java.lang.IllegalStateException + struts + JasperPrint Big Moose Saloon
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java.lang.IllegalStateException + struts + JasperPrint

Rafael Fagundes
Ranch Hand

Joined: Sep 23, 2004
Posts: 52

First of all, I read the topic But still in doubt since my scenario goes like this:

#1. Web application, using RAD and Struts (servlets, filters, actions, and so on....)
#2. A request to generate a PDF, after the Action.execute processing, works like this:

#3. After the execution above, my filter is throwing the exception whit the warning:

WARNING: Cannot set status. Response already committed.
WARNING: Cannot set header. Response already committed.
javax.servlet.ServletException: getOutputStream() has already been called for this response

What should I do to avoid this cenario?


Alexis Ekkehard

Joined: Oct 08, 2009
Posts: 1
We solved a similar exception related with sendredirect using lady4j. In our case the problem was that we already retrieved the outputstream and we tried to redirect... be careful with that.
It is sorta covered in the JavaRanch Style Guide.
subject: java.lang.IllegalStateException + struts + JasperPrint
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