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https://issues.apache.org/jira/browse/IVY-1454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13852400#comment-13852400
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Charles Duffy commented on IVY-1454:
------------------------------------
I'm trying to generate a minimal reproducer and failing thus far. For instance,
the following works perfectly:
{code}
(ns ivy-lock-test.core
(:import [org.apache.ivy.plugins.lock NIOFileLockStrategy]))
(def strategy (NIOFileLockStrategy. true))
(defn with-lock [file run-fn]
(try
(.lockArtifact strategy nil file)
(run-fn)
(finally
(.unlockArtifact strategy nil file))))
(defn artificially-slow-fn []
(Thread/sleep 500))
(pmap
(partial with-lock (java.io.File. "/tmp/test-lockfile"))
(take 100 (repeat artificially-slow-fn)))
{code}
> OverlappingFileLockException when using artifact-lock-nio
> ---------------------------------------------------------
>
> Key: IVY-1454
> URL: https://issues.apache.org/jira/browse/IVY-1454
> Project: Ivy
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.4.0
> Environment: Debian Linux (Wheezy)
> Oracle Java 1.7.0+update45,
> ivy_2.4.0.alpha_20131214174343.jar downloaded from
> https://builds.apache.org/job/Ivy/446/
> Reporter: Carsten Pfeiffer
> Assignee: Charles Duffy
> Priority: Minor
>
> When trying to use {{artifact-lock-nio}} as the lock strategy, I get resolve
> errors due to {{OverlappingFileLockException}} being thrown:
> {code}
> [ivy:resolve] WARN: :: org.hamcrest#hamcrest-core;1.1:
> java.nio.channels.OverlappingFileLockException at
> sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255)
> [ivy:resolve] WARN: :: org.glassfish#javax.ejb;3.1:
> java.nio.channels.OverlappingFileLockException at
> sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255)
> [ivy:resolve] WARN: :: org.jboss.weld.se#weld-se-core;1.1.10.Final:
> java.nio.channels.OverlappingFileLockException at
> sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255)
> {code}
> The reason is probably related to our use of the {{<parallel>}} and
> {{<antcallback>}} tasks. The documentation of the {{antcallback}} task
> is here: http://ant-contrib.sourceforge.net/tasks/tasks/antcallback_task.html
> {code}
> <parallel threadcount="${tests.maxThreads}">
> <antcallback target="testsomething" return="tests.failed"/>
> <antcallback target="testsomeother" return="tests.failed"/>
> <antcallback target="testsomemore" return="tests.failed"/>
> </parallel>
> {code}
> All the testxxx targets perform a resolve before running some junit tests in
> a separate vm. These resolve calls appear to cause the
> {{OverlappingFileLockException}}.
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