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https://issues.apache.org/jira/browse/HTTPCLIENT-1748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16014012#comment-16014012
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ASF GitHub Bot commented on HTTPCLIENT-1748:
--------------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/httpcomponents-client/pull/55
> When run in java applet, SystemDefaultCredentialsProvider fails to get
> authentication from Authenticator
> --------------------------------------------------------------------------------------------------------
>
> Key: HTTPCLIENT-1748
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1748
> Project: HttpComponents HttpClient
> Issue Type: Improvement
> Components: HttpClient (classic)
> Affects Versions: 4.5
> Environment: Windows, application running in a java applet started by
> firefox, connection to a remote server via a squid proxy with basic
> authentication
> Reporter: Sébastien Caille
> Priority: Trivial
> Fix For: 5.0 Alpha2
>
>
> Hello,
> The java applets are deprecated, but the issue may impact other use cases.
> During a POST call made from a java applet via a proxy server with basic
> authentication, SystemDefaultCredentialsProvider.getSystemCreds(...) calls
> Authenticator.requestPasswordAuthentication, which wrongly returns "null"
> authentication.
> The java applet console shows that a NullPointerException was ignored.
> I managed to fix the issue by providing the following values to
> Authenticator.requestPasswordAuthentication (getSystemCreds is currently
> providing null for those ones ):
> prompt = authscope.getRealm()
> url = context.getAttribute(HttpClientContext.HTTP_TARGET_HOST)
> Both values are needed ( prompt == null && url != null -> dialog box asking
> for credentials, prompt != null && url == null -> crashes firefox)
> Note that when downloading the applet jar files, the java is providing values
> for all the parameters of Authenticator.requestPasswordAuthentication
> (according to a breakpoint in requestPasswordAuthentication).
> Thanks
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