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https://issues.apache.org/jira/browse/MRESOLVER-372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17786882#comment-17786882
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ASF GitHub Bot commented on MRESOLVER-372:
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cstamas commented on PR #364:
URL: https://github.com/apache/maven-resolver/pull/364#issuecomment-1814992318
There is one use case I have no idea what to do with, but I do know what I
don't want to do:
> If a file is open for any reason, it can't be replaced. (on Windows)
In this case, if resolver would "silently give up" (for example an
installation attempt), it would mean it is _**intentionally** leaving your
local repository in an **inconsistent state**_. And this is unacceptable for
me. Hence, "ignoring IOExceptions" i consider as a non-option: no software
should intentionally make transition from "consistent" to "inconsistent" state.
Least I can do is implemented similar trick as for directory fsync, and make
resolver broken on windows. But this would imply, that we have to state
somewhere (release notes? site?) that "by design, resolver is not supported on
Windows"?
> Download fails if file is currently in use under windows
> --------------------------------------------------------
>
> Key: MRESOLVER-372
> URL: https://issues.apache.org/jira/browse/MRESOLVER-372
> Project: Maven Resolver
> Issue Type: Bug
> Components: Resolver
> Reporter: Christoph Läubrich
> Assignee: Tamas Cservenak
> Priority: Major
> Fix For: 2.0.0, 1.9.17
>
>
> With the new file-locking in maven-resolver there is a problem under windows
> if the file is currently used by another process (this can for example happen
> in an IDE ...) and resolver likes to move the file:
>
> {code:java}
> Caused by: java.nio.file.AccessDeniedException:
> xxx-SNAPSHOT.jar.15463549870494779429.tmp -> xxxx-SNAPSHOT.jar
> at
> java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:89)
> at
> java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103)
> at java.base/sun.nio.fs.WindowsFileCopy.move(WindowsFileCopy.java:317)
> at
> java.base/sun.nio.fs.WindowsFileSystemProvider.move(WindowsFileSystemProvider.java:293)
> at java.base/java.nio.file.Files.move(Files.java:1432)
> at org.eclipse.aether.util.FileUtils$2.move(FileUtils.java:108)
> at
> org.eclipse.aether.internal.impl.DefaultFileProcessor.copy(DefaultFileProcessor.java:96)
> at
> org.eclipse.aether.internal.impl.DefaultFileProcessor.copy(DefaultFileProcessor.java:88)
> at
> org.eclipse.aether.internal.impl.DefaultArtifactResolver.getFile(DefaultArtifactResolver.java:490)
> ... 30 more{code}
>
> My suggestion would be that resolver simply uses the temp file if it can't be
> moved to final location and marks it as delete on exit. Even though this is
> not optimal, it at least ensures the the build does not fail to the cost that
> next time the file needs to be downloaded again.
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