Some Eclipse Foundation services are deprecated, or will be soon. Please ensure you've read this important communication.
Bug 354693 - "Comparison method violates its general contract!" error when trying to install m2e plugin
Summary: "Comparison method violates its general contract!" error when trying to insta...
Status: CLOSED DUPLICATE of bug 317785
Alias: None
Product: Equinox
Classification: Eclipse Project
Component: p2 (show other bugs)
Version: unspecified   Edit
Hardware: PC Linux
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: P2 Inbox CLA
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-08-13 18:06 EDT by Peter De Maeyer CLA
Modified: 2011-08-14 13:20 EDT (History)
2 users (show)

See Also:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Peter De Maeyer CLA 2011-08-13 18:06:15 EDT 
java.lang.IllegalArgumentException: Comparison method violates its general contract!
	at java.util.ComparableTimSort.mergeLo(ComparableTimSort.java:714)
	at java.util.ComparableTimSort.mergeAt(ComparableTimSort.java:451)
	at java.util.ComparableTimSort.mergeForceCollapse(ComparableTimSort.java:392)
	at java.util.ComparableTimSort.sort(ComparableTimSort.java:191)
	at java.util.ComparableTimSort.sort(ComparableTimSort.java:146)
	at java.util.Arrays.sort(Arrays.java:472)
	at org.eclipse.equinox.internal.p2.artifact.repository.MirrorSelector.hasValidMirror(MirrorSelector.java:319)
	at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.downloadArtifact(SimpleArtifactRepository.java:577)
	at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getArtifact(SimpleArtifactRepository.java:680)
	at org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.getArtifact(MirrorRequest.java:260)
	at org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.transferSingle(MirrorRequest.java:235)
	at org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.transfer(MirrorRequest.java:191)
	at org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.perform(MirrorRequest.java:122)
	at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getArtifact(SimpleArtifactRepository.java:664)
	at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getArtifacts(SimpleArtifactRepository.java:735)
	at org.eclipse.equinox.internal.p2.artifact.repository.CompositeArtifactRepository.getArtifacts(CompositeArtifactRepository.java:341)
	at org.eclipse.equinox.internal.p2.artifact.repository.CompositeArtifactRepository.getArtifacts(CompositeArtifactRepository.java:341)
	at org.eclipse.equinox.internal.p2.engine.DownloadManager.fetch(DownloadManager.java:110)
	at org.eclipse.equinox.internal.p2.engine.DownloadManager.start(DownloadManager.java:99)
	at org.eclipse.equinox.internal.p2.engine.phases.Collect.completePhase(Collect.java:76)
	at org.eclipse.equinox.internal.p2.engine.Phase.postPerform(Phase.java:216)
	at org.eclipse.equinox.internal.p2.engine.Phase.perform(Phase.java:84)
	at org.eclipse.equinox.internal.p2.engine.PhaseSet.perform(PhaseSet.java:44)
	at org.eclipse.equinox.internal.p2.engine.Engine.perform(Engine.java:75)
	at org.eclipse.equinox.internal.p2.engine.Engine.perform(Engine.java:44)
	at org.eclipse.equinox.p2.operations.ProvisioningSession.performProvisioningPlan(ProvisioningSession.java:174)
	at org.eclipse.equinox.p2.operations.ProfileModificationJob.runModal(ProfileModificationJob.java:79)
	at org.eclipse.equinox.p2.operations.ProvisioningJob.run(ProvisioningJob.java:177)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Comment 1 Igor Fedorenko CLA 2011-08-14 05:50:47 EDT 
Seems to be a problem with p2 mirror selection logic or eclipse download server misconfiguration. Moving to p2 for investigation.
Comment 2 Pascal Rapicault CLA 2011-08-14 13:20:46 EDT 

*** This bug has been marked as a duplicate of bug 317785 ***