Ricardo Pereira created HTTPCLIENT-1381:
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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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