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Home/ Questions/Q 6950655
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Editorial Team
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Editorial Team
Asked: May 27, 20262026-05-27T14:07:09+00:00 2026-05-27T14:07:09+00:00

When I switched from ApacheHttpTransport to NetHttpTransport IOException is thrown instead of HttpResponseException for

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When I switched from ApacheHttpTransport to NetHttpTransport IOException is thrown instead of HttpResponseException for 401 http status.

I get IOException with following message: Received “authentication challenge is null”

This is wrong. I should get HttpResponseException with 401 status. Does anybody faced same problem?

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  1. Editorial Team
    Editorial Team
    2026-05-27T14:07:10+00:00Added an answer on May 27, 2026 at 2:07 pm

    I fixed the problem. On server side I haven’t added header “WWW-Authenticate”. This response header is required for 401 responses.

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