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From "Chris Lott (JIRA)" <>
Subject [jira] [Commented] (WAGON-518) AbstractHttpClientWagon#putFromStream() reads entire content to memory
Date Mon, 23 Apr 2018 13:15:00 GMT


Chris Lott commented on WAGON-518:

Thanks for the quick response. Is there an automated test for this?

> AbstractHttpClientWagon#putFromStream() reads entire content to memory
> ----------------------------------------------------------------------
>                 Key: WAGON-518
>                 URL:
>             Project: Maven Wagon
>          Issue Type: Bug
>          Components: wagon-http
>    Affects Versions: 2.12
>            Reporter: Chris Lott
>            Assignee: Michael Osipov
>            Priority: Major
>             Fix For: 3.1.0
> Method putFromSteam in class AbstractHttpClientWagon seems to violate the implied contract
of working with streams.  It uses much memory because it first consumes the input stream
argument, then transfers that content.  The code that consumes the stream is in the private
class RequestEntityImplementation ctor:
> {code:java}
>      byte[] bytes = IOUtil.toByteArray( stream );{code}
> Please revise it, if possible, to behave more like the superclass StreamWagon's putFromStream
method, which does the transfer straight from the input stream.
> We are attempting to PUT some 150MB artifacts in a java microservice that runs with rather
sharp memory limits.  As a local workaround we increased the JVM's -Xmx argument but that
way lies madness.
> Thanks in advance for any suggestions or workarounds. 

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