I wanted to tag build and received error:
Failed to tag
org.tmatesoft.svn.core.SVNException: svn: File not found: revision 69572,
path 'XXX'
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error
(SVNErrorManager.java:63)
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error
(SVNErrorManager.java:50)
at org.tmatesoft.svn.core.internal.io.svn.SVNReader.handleFailureStatus
(SVNReader.java:261)
at org.tmatesoft.svn.core.internal.io.svn.SVNReader.parse
(SVNReader.java:240)
at org.tmatesoft.svn.core.internal.io.svn.SVNConnection.read
(SVNConnection.java:270)
at org.tmatesoft.svn.core.internal.io.svn.SVNRepositoryImpl.read
(SVNRepositoryImpl.java:1267)
at org.tmatesoft.svn.core.internal.io.svn.SVNRepositoryImpl.getLocationsImpl
(SVNRepositoryImpl.java:287)
at org.tmatesoft.svn.core.io.SVNRepository.getLocations
(SVNRepository.java:892)
at org.tmatesoft.svn.core.io.SVNRepository.getLocations
(SVNRepository.java:1245)
at org.tmatesoft.svn.core.wc.SVNBasicClient.getLocations
(SVNBasicClient.java:829)
at org.tmatesoft.svn.core.wc.SVNCopyClient.copyReposToRepos
(SVNCopyClient.java:902)
at org.tmatesoft.svn.core.wc.SVNCopyClient.setupCopy(SVNCopyClient.java:520)
at org.tmatesoft.svn.core.wc.SVNCopyClient.doCopy(SVNCopyClient.java:261)
at hudson.scm.SubversionTagAction$TagWorkerThread.perform
(SubversionTagAction.java:169)
at hudson.model.TaskThread.run(TaskThread.java:77)
Completed

My guess is that hudson has problem with spaces because path on the svn server
(which I replaced here with XXX) contained space and hudson replaced it with %
20.