Diagnosis/Treatment
We recommend you create a logger with org.apache.commons.httpclient and then click on Validate Proxy.
Then, you might get a stacktrace like the one below, which suggest that your proxy is using NTLM authentication model.
Dec 11, 2015 11:46:37 AM SEVERE org.apache.commons.httpclient.HttpMethodDirector authenticate Credentials cannot be used for NTLM authentication: org.apache.commons.httpclient.UsernamePasswordCredentials org.apache.commons.httpclient.auth.InvalidCredentialsException: Credentials cannot be used for NTLM authentication: org.apache.commons.httpclient.UsernamePasswordCredentials at org.apache.commons.httpclient.auth.NTLMScheme.authenticate(NTLMScheme.java:332) at
This article is part of our Knowledge Base and is provided for guidance-based purposes only. The solutions or workarounds described here are not officially supported by CloudBees and may not be applicable in all environments. Use at your own discretion, and test changes in a safe environment before applying them to production systems.