Bug in B6361557

Jaikiran Pai jai.forums2013 at gmail.com
Sat Jan 4 00:52:02 UTC 2025


Hello Robert,

This does indeed look like an issue in the test. I've filed 
https://bugs.openjdk.org/browse/JDK-8347000 to address this. Thank you 
for bringing it up here.

-Jaikiran

On 03/01/25 9:11 pm, robert engels wrote:
> Hi,
>
> The jdk test B6361557 here https://github.com/openjdk/jdk23u/blob/9101cc14972ce6bdeb966e67bcacc8b693c37d0a/test/jdk/com/sun/net/httpserver/bugs/B6361557.java#L68
>
> sends an invalid http request according to the specification here https://datatracker.ietf.org/doc/html/rfc2616#section-4.4
>
> specifically "When a Content-Length is given in a message where a message-body is
>     allowed, its field value MUST exactly match the number of OCTETs in
>     the message-body. HTTP/1.1 user agents MUST notify the user when an
>     invalid length is received and detected."
>
> The code in this test case sends a request with Content-length set to 0, but due to a bug, it sends extra octets after the request header (14 zero to be exact).
>
> The cause is that the buffer is allocated to 64, and filled with a string that is shorter, but the entire buffer is sent.
>
> This is fixed by changing line 68 to
>
> final static ByteBuffer requestBuf = ByteBuffer.wrap(request.getBytes());
>
> It currently passes, only because the server is not fully implementing the http specification.
>
> —Robert


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