[JIRA] (JENKINS-15331) Workaround Windows unpredictable file locking in Util.deleteContentsRecursive

[pjdar...@java.net (JIRA)]

pjdarton edited a comment on JENKINS-15331 Workaround Windows unpredictable file locking in Util.deleteContentsRecursive Features: Added two new system properties that control behavior: "Util.deletionRetries" (an integer, defaults to 3) and "Util.deletionRetryWait" (an integer, defaults to 500ms). Delete operations that affect directories now try to delete the entire contents of the directory, continuing on to subfolders etc even after encountering files that wouldn't die, before eventually throwing an exception about what wouldn't die. i.e. if a folder has a file "a", "b" and "c", and you can't delete "b", then "a" and "c" would get deleted (and you'll still get the exception about "b"). Delete operations now have multiple attempts at deleting things, so if not everything could be deleted first time around, maybe they'll get deleted 2nd/3rd etc time around. An exception is only thrown if all retry attempts are exhausted and there are still files/directories that won't delete. Added some unit tests for these methods. After posting this back in October 2012, I built a version of Jenkins LTS with this patch applied. I've been using it at work for all our development stuff and I've not had file locking problems since. I'm pretty confident that it fixes the problem. Disclaimers: I've not tested this on Linux (or the unit-tests). It should be harmless (behaviorial changes are conditional on being on Windows), but it'd be worth running the unit-tests on Linux just to verify that.

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