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From "Ricardo Pereira (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCLIENT-1381) NullPointerException during NTLM authentication using null workstation/domain
Date Wed, 03 Jul 2013 19:04:21 GMT
Ricardo Pereira created HTTPCLIENT-1381:
-------------------------------------------

             Summary: NullPointerException during NTLM authentication using null workstation/domain
                 Key: HTTPCLIENT-1381
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1381
             Project: HttpComponents HttpClient
          Issue Type: Bug
          Components: HttpAuth
    Affects Versions: Snapshot
            Reporter: Ricardo Pereira
            Priority: Minor


Using NTCredentials with null workstation or null domain leads to a NullPointerException during
the NTLM authentication.

The workaround is to use an empty String for both the workstation and domain.

Exception stack trace of an attempt to authenticate with null workstation:
Exception in thread "main" java.lang.NullPointerException
	at org.apache.http.impl.auth.NTLMEngineImpl.stripDotSuffix(NTLMEngineImpl.java:186)
	at org.apache.http.impl.auth.NTLMEngineImpl.convertHost(NTLMEngineImpl.java:194)
	at org.apache.http.impl.auth.NTLMEngineImpl.access$14(NTLMEngineImpl.java:193)
	at org.apache.http.impl.auth.NTLMEngineImpl$Type1Message.<init>(NTLMEngineImpl.java:970)
	at org.apache.http.impl.auth.NTLMEngineImpl.getType1Message(NTLMEngineImpl.java:139)
	at org.apache.http.impl.auth.NTLMEngineImpl.generateType1Msg(NTLMEngineImpl.java:1608)
	at org.apache.http.impl.auth.NTLMScheme.authenticate(NTLMScheme.java:129)
	at org.apache.http.impl.auth.AuthSchemeBase.authenticate(AuthSchemeBase.java:136)
	at org.apache.http.impl.auth.HttpAuthenticator.doAuth(HttpAuthenticator.java:239)
	at org.apache.http.impl.auth.HttpAuthenticator.generateAuthResponse(HttpAuthenticator.java:202)
	at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:251)
	at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:176)
	at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:77)
	at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:101)
	at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:115)
	at ClientNtlmProxyAuthentication.main(ClientNtlmProxyAuthentication.java:70)

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