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https://issues.apache.org/jira/browse/HTTPCLIENT-1983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16821432#comment-16821432
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Ryan Schmitt commented on HTTPCLIENT-1983:
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[~olegk] You're right, and unfortunately that means there's no easy way to
address this problem. It seems like no matter what we do we'll be breaking
compatibility again with a prior version of the client.
[~reschke] What about the {{RequestConfig}} changes made in HTTPCLIENT-1968? Do
we back them out as well, or reinterpret the {{normalizeUri}} flag to mean
something different than what it currently means?
> URIBuilder normalization change is significantly breaking
> ---------------------------------------------------------
>
> Key: HTTPCLIENT-1983
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1983
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Affects Versions: 4.5.7, 4.5.8
> Reporter: Ryan Schmitt
> Priority: Major
> Fix For: 4.5.9
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> In 4.5.7, the behavior of URIBuilder changed in order to address
> HTTPCLIENT-1960. Since that version was released, I have seen a concerning
> number of users complain that this change has broken their code (see issue
> links). In 4.5.8, as a result of HTTPCLIENT-1968, an option was added to
> allow users to opt in to the old behavior, but the new behavior is what they
> will get by default. This problem is difficult to work around for developers
> who cannot exercise exact control over the runtime version of HttpClient: the
> method they need might not be there, and if it is, it needs to be invoked
> reflectively, or in a way that tolerates a {{NoSuchMethodError}}.
> For the sake of compatibility, I propose that we change the default value of
> {{normalizeUri}} to {{false}}. This will be the default on the 4.5.x line
> only; the 5.0.x line, as well as any future 4.6.x line, will normalize by
> default (if an option is needed at all).
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