3532243 - Http Client throws InvalidCredentialsException

• Queues are blocked when the receiver adapter (e.g. HTTP, Successfactors, REST, OData) uses HTTP client.
• Default traces are flooded with the error 
   "EXCEPTION] 
   com.sap.httpclient.exception.InvalidCredentialsException: Credentials cannot be used for NTLM authentication: com.sap.httpclient.auth.UserPassCredentials 
   com.sap.httpclient.auth.NTLMScheme.authenticate(NTLMScheme.java:165)"
• Thread dumps show thread(s) with the below stack trace:  
   "at com.sap.httpclient.HttpMethodProcessor.authenticateHost(HttpMethodProcessor.java:244)
  at com.sap.httpclient.HttpMethodProcessor.authenticate(HttpMethodProcessor.java:204)
  at com.sap.httpclient.HttpMethodProcessor.executeMethod(HttpMethodProcessor.java:148)
  at com.sap.httpclient.HttpClient.executeMethod(HttpClient.java:298)
  at com.sap.httpclient.HttpClient.executeMethod(HttpClient.java:236)"

• The target server returns an NTLM or Digest channel, i.e. the first response header contains the header: 
   WWW-Authenticate: NTLM
  or
  WWW-Authenticate: Digest

SAP NetWeaver 7.50

NTLM, InvalidCredentialsException, HTTP Client, PI, PO, Process Orchestration, Process Integration  , KBA , BC-XI-CON-RST , Rest Adapter , BC-XI-CON-SUF , SuccessFactors Adapter , BC-XI-CON-SOP , SOAP Adapter , BC-XI-CON-HTP , HTTP Adapter J2EE Adapter Engine , BC-XI-CON-ODT , ODATA Adapter , BC-JAS-WEB , Web Container, HTTP, JavaMail, Servlets , Problem