title: SVN "is not under version control" failure with Jenkins
body: <p>I have a project in Jenkins that has many SVN repositories to pull from. Whenever I build, the first build after a workspace clean fails with errors like the one below. Without changing anything, the next build will be successful.</p>
  
  <p>If I set the project to always clean the workspace before the build, it will always fail. Each time, with different SVN repositories.</p>
  
  <p>I tried moving to SVN 1.6, tried verifying that the HTTPS certificate is okay, not sure what else to look for?</p>
  
  <pre><code>ERROR: Failed to parse svn info for     https://subversion.assembla.com/svn/&lt;PROJECT NAME HIDDEN&gt;/trunk
  org.tmatesoft.svn.core.SVNException: svn:     '/tmp/data/hudson/jobs/Build_ISO/workspace/ch.ethz.ssh2' is not under version control
      at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:64)
      at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:51)
      at org.tmatesoft.svn.core.wc.SVNWCClient$13.handleError(SVNWCClient.java:3314)
      at org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.walkEntries(SVNWCAccess.java:758)
      at org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.walkEntries(SVNWCAccess.java:741)
  at org.tmatesoft.svn.core.wc.SVNWCClient.crawlEntries(SVNWCClient.java:3294)
  at org.tmatesoft.svn.core.wc.SVNWCClient.doInfo(SVNWCClient.java:2498)
  at org.tmatesoft.svn.core.wc.SVNWCClient.doInfo(SVNWCClient.java:2865)
  at hudson.scm.SubversionSCM$BuildRevisionMapTask.invoke(SubversionSCM.java:1023)
  at hudson.scm.SubversionSCM$BuildRevisionMapTask.invoke(SubversionSCM.java:1001)
  at hudson.FilePath.act(FilePath.java:832)
  at hudson.FilePath.act(FilePath.java:814)
  at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:685)
  at hudson.model.AbstractProject.checkout(AbstractProject.java:1212)
  at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:579)
  at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:468)
  at hudson.model.Run.run(Run.java:1410)
  at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
  at hudson.model.ResourceController.execute(ResourceController.java:88)
  at hudson.model.Executor.run(Executor.java:238)
  Caused by: org.tmatesoft.svn.core.SVNErrorMessage: svn: '/tmp/data/hudson/jobs/Build_ISO/workspace/ch.ethz.ssh2' is not under version control
  at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:163)
  at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:118)
  ... 17 more
  </code></pre>