withjava.lang.IllegalStateException

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  • forward() vs include()
    via by Peter den Haan,
    • withjava.lang.IllegalStateException: Cannot forward as OutputStream or Writer has already been obtained at org.apache.tomcat.facade.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:150) at test.forward.DoubleForward.doGet(DoubleForward.java:20) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
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