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24 lines
1.1 KiB
24 lines
1.1 KiB
// TODO: Checking any one of {InterleavedResponse, ForwardUncommited} is relatively fast. But,
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// checking both is very slow.
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// According to the Servlet API, one should use
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// - a writer for a textual response
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// - a stream for a binary response, or for a mixed binary+textual response
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// but never both a writer and a stream.
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property InterleavedResponse
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message "A ServletResponse was asked for both a writer and a stream."
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prefix "ServletResponse"
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start -> start: *
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start -> gotWriter: getWriter(R, IgnoreRet) => r := R
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start -> gotStream: getOutputStream(R, IgnoreRet) => r := R
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gotWriter -> error: getOutputStream(R, IgnoreRet) when R == r
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gotStream -> error: getWriter(R, IgnoreRet) when R == r
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property ForwardUncommitted
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message "A ServletResponse was forwarded before being committed."
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start -> start: *
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start -> gotChannel: "ServletResponse.\\(getWriter\\|getOutputStream\\)"(R, C) => r := R; c := C
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gotChannel -> ok: "\\(PrintWriter\\|ServletOutputStream\\).flush.*"(C, IgnoreRet) when C == c
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gotChannel -> error: "RequestDispatcher.forward"(IgnoreDispatcher, IgnoreRequest, Response, IgnoreRet) when Response == r
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