[undertow-dev] exchange.getResponseSender().send issues

[Stuart Douglas]

On Thu, Feb 9, 2017 at 4:01 AM, Hicks, Matt <matt at matthicks.com> wrote:
> Well, modifying my computation to do myString.getBytes("UTF-8").length
> instead of myString.length resolved the issue.  The silent failing still has
> me concerned though.

You are much better off just letting undertow do it. If you do it like
that then you will end up turning the String into a byte array twice,
which is very expensive for large payloads (of course you could just
send the resulting byte array).

Stuart

>
> On Wed, Feb 8, 2017 at 10:41 AM Hicks, Matt <matt at matthicks.com> wrote:
>>
>> Well, I just added an IoCallback and now I'm getting an error: Attempted
>> to write 144780 bytes however content-length has been set to 144772
>>
>> This, I think, raises both a question and an issue:
>>
>> Question: Should I not be setting the Content-Length myself even when
>> using exchange.getResponseSender().send?
>> Issue: Seems like a bug that without an IoCallback the error is just
>> absorbed and never logged anywhere.
>>
>> On Wed, Feb 8, 2017 at 10:35 AM Hicks, Matt <matt at matthicks.com> wrote:
>>>
>>> I'm having a very strange problem sending a generated HTML file back to
>>> the browser using `exchange.getResponseSender().send(s)`.  It seems to work
>>> fine if the content is a short bit of text like "Hello World", but the
>>> content is 144,772 bytes and if I use Curl to test it I get a 200 OK, but it
>>> says the Content-Length is 0 and no content comes back.  If I set the
>>> content to a short String like I said, then the Content-Length is properly
>>> set and the content comes back like expected.
>>>
>>> Should I not be using `exchange.getResponseSender().send` for large
>>> amounts of text?
>>>
>>> I just updated to 1.4.10.Final hoping that it was a bug that was fixed
>>> since 1.4.8.Final, but it's still happening.
>>>
>>> Any insights would be greatly appreciated.
>
>
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