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From "Adam Lewandowski (JIRA)" <>
Subject [jira] [Closed] (IVYDE-305) Cannot delete outdated snapshot artifact from cache
Date Mon, 07 Jan 2013 20:46:12 GMT


Adam Lewandowski closed IVYDE-305.

    Resolution: Invalid

I ultimately tracked this down to be an issue with Spring IDE, not IvyDE. Specifically Spring
IDE's use of, which is known to hold locks on jar files on Windows.
Spring IDE now has an option to use non-locking classloaders, which fixes this. If anyone
else comes across this issue, you may want to look for usages of URLClassLoader, as I've seen
reports of other Eclipse plugins (ie: Groovy nature) also dealing with this issue.
> Cannot delete outdated snapshot artifact from cache
> ---------------------------------------------------
>                 Key: IVYDE-305
>                 URL:
>             Project: IvyDE
>          Issue Type: Bug
>          Components: workspace resolver
>    Affects Versions: 2.2.0.beta1
>         Environment: Windows XP
> Eclipse Indigo
>            Reporter: Adam Lewandowski
> If I declare a dependency on a snapshot revision of a module (with changingPattern=".*SNAPSHOT"),
IvyDE is unable to retrieve the updated version into the cache if the artifact in the repository
is updated after the initial resolve in Eclipse. Command-line ant builds also fail in this
> It appears as though Eclipse is holding a lock on the jar file in the cache, which I
believe is a Windows-only problem. Using something like Process Explorer to kill the file
handle allows the resolve to succeed, but it's really annoying to have to do that and I don't
think the average user would even know to do it. Since IvyDE is running in 
> Eclipse, is there a way to have it release the lock on the jar before updating?
> Also, IvyDE reports this (somewhat misleadingly) as a module not being found:
> "Impossible to resolve dependencies of myOrg#myMod;1.0
> unresolved dependency: depOrg#depMod;1.0.SNAPSHOT: not found"
> In the Ivy Console (and if you attempt to resolve in a command-line ant build), you get
a more accurate error message:
> "Couldn't delete outdated artifact from cache: C:\Documents and Settings\MYUSER\.ivy2\cache\depOrg\depMod\jars\depMod-1.0.SNAPSHOT.jar"

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