• Using svn+ssh with private key located at ~jenkins/.ssh/id_rsa (/var/lib/jenkins/.ssh/id_rsa)
• Issue occurred during first attempted builds after installing and configuring
• Successfully ran svn checkout by hand
• Attempted fix as detailed here: http://blog.vinodsingh.com/2009/08/hudson-svn-authentication-cancelled.html (as per: https://wiki.jenkins-ci.org/display/JENKINS/Subversion+Plugin ) with no success

Output of latest build failure:

Started by an SCM change
Building in workspace /var/lib/jenkins/jobs/blank2buf/workspace
Checking out a fresh workspace because there's no workspace at /var/lib/jenkins/jobs/blank2buf/workspace
Cleaning local Directory .
Checking out svn+ssh://redactedusername@pl6.projectlocker.com/SP/svn/sports_player/trunk/blank2buf/trunk at revision '2016-03-14T11:37:45.090 -0500'
ERROR: Failed to check out svn+ssh://redactedusername@pl6.projectlocker.com/SP/svn/sports_player/trunk/blank2buf/trunk
org.tmatesoft.svn.core.SVNCancelException: svn: E200015: authentication cancelled
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.cancel(SVNErrorManager.java:37)
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.cancel(SVNErrorManager.java:32)
at org.tmatesoft.svn.core.internal.io.svn.SVNSSHConnector.open(SVNSSHConnector.java:149)
at org.tmatesoft.svn.core.internal.io.svn.SVNConnection.open(SVNConnection.java:77)
at org.tmatesoft.svn.core.internal.io.svn.SVNRepositoryImpl.openConnection(SVNRepositoryImpl.java:1273)
at org.tmatesoft.svn.core.internal.io.svn.SVNRepositoryImpl.getLatestRevision(SVNRepositoryImpl.java:172)
at org.tmatesoft.svn.core.internal.wc16.SVNBasicDelegate.getRevisionNumber(SVNBasicDelegate.java:480)
at org.tmatesoft.svn.core.internal.wc16.SVNBasicDelegate.getLocations(SVNBasicDelegate.java:833)
at org.tmatesoft.svn.core.internal.wc16.SVNBasicDelegate.createRepository(SVNBasicDelegate.java:527)
at org.tmatesoft.svn.core.internal.wc16.SVNUpdateClient16.doCheckout(SVNUpdateClient16.java:875)
at org.tmatesoft.svn.core.internal.wc2.old.SvnOldCheckout.run(SvnOldCheckout.java:66)
at org.tmatesoft.svn.core.internal.wc2.old.SvnOldCheckout.run(SvnOldCheckout.java:18)
at org.tmatesoft.svn.core.internal.wc2.SvnOperationRunner.run(SvnOperationRunner.java:21)
at org.tmatesoft.svn.core.wc2.SvnOperationFactory.run(SvnOperationFactory.java:1235)
at org.tmatesoft.svn.core.wc2.SvnOperation.run(SvnOperation.java:294)
at hudson.scm.subversion.CheckoutUpdater$1.perform(CheckoutUpdater.java:119)
at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:162)
at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:170)
at hudson.scm.subversion.UpdateUpdater$TaskImpl.perform(UpdateUpdater.java:134)
at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:162)
at hudson.scm.SubversionSCM$CheckOutTask.perform(SubversionSCM.java:988)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:969)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:945)
at hudson.FilePath.act(FilePath.java:990)
at hudson.FilePath.act(FilePath.java:968)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:894)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:830)
at hudson.scm.SCM.checkout(SCM.java:485)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1269)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:607)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:529)
at hudson.model.Run.execute(Run.java:1738)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:410)
FATAL: null
java.lang.NullPointerException
at java.util.ArrayList.addAll(ArrayList.java:577)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:894)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:830)
at hudson.scm.SCM.checkout(SCM.java:485)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1269)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:607)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:529)
at hudson.model.Run.execute(Run.java:1738)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:410)
Archiving artifacts
Finished: FAILURE