The NullPointerException below sometimes occures when Jenkins starts an SVN checkout (at the beginning of the job), only with secured HTTP (HTTPS).

Can you please catch this exception and log a message with the root cause ?

It is a blocker for us to use SVN over HTTPS.

We use last versions of every components:
Jenkins 1.608
Subversion Plug-in : 2.5

23:00:46 Started by upstream project "Build Pipeline Job" build number 193
23:00:46 originally caused by:
23:00:46 Started by timer
23:00:46 [EnvInject] - Loading node environment variables.
23:00:46 Building remotely on linux-slave1 in workspace /home/app_jenkins/slave1/workspace/XXX Nightly Trunk
23:00:47 Checking out a fresh workspace because there's no workspace at /home/app_jenkins/slave1/workspace/XXX Nightly Trunk
23:00:47 Cleaning local Directory .
23:00:47 Checking out https://svn.company.com/products/xxx/trunk at revision '2015-04-15T23:00:46.930 +0200'
23:00:47 ERROR: Failed to check out https://svn.company.com/products/xxx/trunk
23:00:47 org.tmatesoft.svn.core.SVNCancelException: svn: E200015: authentication cancelled
23:00:47 at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.cancel(SVNErrorManager.java:37)
23:00:47 at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.cancel(SVNErrorManager.java:32)
23:00:47 at org.tmatesoft.svn.core.internal.wc.DefaultSVNAuthenticationManager.getNextAuthentication(DefaultSVNAuthenticationManager.java:215)
23:00:47 at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:685)
23:00:47 at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:371)
23:00:47 at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:359)
23:00:47 at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.performHttpRequest(DAVConnection.java:710)
23:00:47 at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.exchangeCapabilities(DAVConnection.java:627)
23:00:47 at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.open(DAVConnection.java:102)
23:00:47 at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.openConnection(DAVRepository.java:1032)
23:00:47 at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.getLatestRevision(DAVRepository.java:175)
23:00:47 at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgRepositoryAccess.getRevisionNumber(SvnNgRepositoryAccess.java:118)
23:00:47 at org.tmatesoft.svn.core.internal.wc2.SvnRepositoryAccess.getLocations(SvnRepositoryAccess.java:184)
23:00:47 at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgRepositoryAccess.createRepositoryFor(SvnNgRepositoryAccess.java:45)
23:00:47 at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgAbstractUpdate.checkout(SvnNgAbstractUpdate.java:756)
23:00:47 at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgCheckout.run(SvnNgCheckout.java:26)
23:00:47 at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgCheckout.run(SvnNgCheckout.java:11)
23:00:47 at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgOperationRunner.run(SvnNgOperationRunner.java:20)
23:00:47 at org.tmatesoft.svn.core.internal.wc2.SvnOperationRunner.run(SvnOperationRunner.java:21)
23:00:47 at org.tmatesoft.svn.core.wc2.SvnOperationFactory.run(SvnOperationFactory.java:1259)
23:00:47 at org.tmatesoft.svn.core.wc2.SvnOperation.run(SvnOperation.java:294)
23:00:47 at hudson.scm.subversion.CheckoutUpdater$1.perform(CheckoutUpdater.java:115)
23:00:47 at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:162)
23:00:47 at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:170)
23:00:47 at hudson.scm.subversion.UpdateUpdater$TaskImpl.perform(UpdateUpdater.java:133)
23:00:47 at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:162)
23:00:47 at hudson.scm.SubversionSCM$CheckOutTask.perform(SubversionSCM.java:991)
23:00:47 at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:972)
23:00:47 at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:948)
23:00:47 at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2688)
23:00:47 at hudson.remoting.UserRequest.perform(UserRequest.java:118)
23:00:47 at hudson.remoting.UserRequest.perform(UserRequest.java:48)
23:00:47 at hudson.remoting.Request$2.run(Request.java:328)
23:00:47 at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
23:00:47 at java.util.concurrent.FutureTask.run(FutureTask.java:262)
23:00:47 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
23:00:47 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
23:00:47 at java.lang.Thread.run(Thread.java:744)
23:00:47 FATAL: null
23:00:47 java.lang.NullPointerException
23:00:47 at java.util.ArrayList.addAll(ArrayList.java:559)
23:00:47 at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:897)
23:00:47 at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:833)
23:00:47 at hudson.scm.SCM.checkout(SCM.java:484)
23:00:47 at hudson.model.AbstractProject.checkout(AbstractProject.java:1270)
23:00:47 at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:609)
23:00:47 at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
23:00:47 at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:531)
23:00:47 at hudson.model.Run.execute(Run.java:1741)
23:00:47 at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:531)
23:00:47 at hudson.model.ResourceController.execute(ResourceController.java:98)
23:00:47 at hudson.model.Executor.run(Executor.java:374)