java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at jcifs.smb.NtlmPasswordAuthentication.nTOWFv2(NtlmPasswordAuthentication.java:209)
at jcifs.ntlmssp.Type3Message.(Type3Message.java:232)
at org.jasig.portlet.calendar.adapter.exchange.JCIFSEngine.generateType3Msg(JCIFSEngine.java:77)

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