[jira] [Updated] (SLING-2039) Output lost with JSPs and sling:include

["Felix Meschberger (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLING-2039?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Felix Meschberger updated SLING-2039:
-------------------------------------

    Attachment: SLING-2039-test.xml

Simple test scenario for this issue. Upload attached file using curl:

$ curl -u user:pass -F":contentType=jcr.xml" -F:operation=import -F:name=jcr-test -F:contentFile=@SLING-2039-test.xml http://host:port/apps

Then send a request to /apps/jsp-test.html; e.g. with curl:

$ curl -u user:pass http://host:port/apps/jsp_test.html

If the server replies with a proper HTML response (ends with <html>) everything is fine. If the server replies with just a bunch of lower-case a characters then the error manifests itself.

> Output lost with JSPs and sling:include
> ---------------------------------------
>
>                 Key: SLING-2039
>                 URL: https://issues.apache.org/jira/browse/SLING-2039
>             Project: Sling
>          Issue Type: Bug
>          Components: Engine
>    Affects Versions: Engine 2.2.2
>            Reporter: Felix Meschberger
>            Assignee: Felix Meschberger
>             Fix For: Engine 2.2.4
>
>         Attachments: SLING-2039-test.xml
>
>
> Using a single output buffer per included resource may lead to loss of response data.
> Consider this setup:
>    - main request handled by html.jsp. Some data is written to "out" (buffering JspWriter)
>    - html.jsp incudes another jsp (list.html.jsp) which in turn writes more data
>    - html.jsp continues writing to the output
> If list.html.jsp sends less than the JspWriter's buffer, everything is fine.
> As soon as the JspWritter buffer overflows, though, only the first bytes of the actual response (exactly the size of the JspWriter buffer) is returned.

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