When I try to use the maven-jira-plugin to create a Jira issues report, I always get the following error : Credentials cannot be used for NTLM authentication: org.apache.commons.httpclient.UsernamePasswordCredentials Although I am able to view the issues using the generated url of the plugin : http://hb2kis1:8086/secure/secure/IssueNavigator.jspa?view=rss&pid=10030&sorter/field=issuekey&sorter/order=DESC&sorter/field=status&sorter/order=DESC&tempMax=1000&reset=true&decorator=none And the proxy setting are set correctly in my build.properties file