1945020 - SFTP Receiver channel throws UnsupportedOperationException | SAP Knowledge Base Article

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1945020 - SFTP Receiver channel throws UnsupportedOperationException

Symptom

When using an SFTP receiver channel the following error message can be seen:

  • In audit log/communication channel monitoring:

    java.lang.UnsupportedOperationException: received authentication request from server which could not be processed ...

    sftp.jpg

 

  • When tracing the message exchange with XPI Inspector (Note 1514898 Example 100 ->com.sap.aii.adapter.sftp*) and the following message can be seen from the trace:

    Authentication that can continue: publickey.keyboard-interactive.password
    Next authentication method: publickey
    Authentication that can continue: publickey.keyboard-interactive.password
    Next authentication method: keyboard-interactive

    sftp_authentication.jpg

 


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Environment

  • SAP NetWeaver Process Integration 7.1
  • SAP enhancement package 1 for SAP NetWeaver Process Integration 7.1
  • SAP NetWeaver 7.3
  • SAP enhancement package 1 for SAP NetWeaver 7.3
  • SAP NetWeaver 7.4

Product

SAP NetWeaver 7.1 ; SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver Process Integration 7.1 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 1 for SAP NetWeaver Process Integration 7.1

Keywords

Authentication, Request, Instruction, MessagingException, JCA adapter, Method, Message could not be forwarded, Received authentication request, Message status set to NDLV, SFTP, Publickey, Keyboard-interactive, UnsupportedOperationException, XPI Inspector, Process Integration 7.10, PI 7.10, Process Integration 7.11, PI 7.11, Process Integration 7.30, PI 7.30, Process Integration 7.31, PI 7.31, Process Integration 7.4, PI 7.4 , KBA , BC-XI-CON-SFT , Secure File Transfer Protocol Adapter , Problem

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