hudson.plugins.git.GitException: Could not clone GIT_URL_GOES_HERE
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:298)
at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:828)
at hudson.plugins.git.GitSCM.checkout(GitSCM.java:861)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1411)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:652)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:557)
at hudson.model.Run.execute(Run.java:1665)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:230)
Caused by: java.lang.IllegalArgumentException: Username may not be null
at org.apache.commons.httpclient.UsernamePasswordCredentials.<init>(UsernamePasswordCredentials.java:90)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.getURLWithCrendentials(CliGitAPIImpl.java:1376)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.getURLWithCrendentials(CliGitAPIImpl.java:1338)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$300(CliGitAPIImpl.java:52)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:292)
... 10 more