java.lang.IllegalArgumentException: Comparison method violates its general contract! when sorting by last action - Githubissues

InteractiveFaultLocalization / iFL4Eclipse

iFL for Eclipse is an Eclipse plug-in for supporting interactive fault localization for Java projects developed in this environment.

Eclipse Public License 2.0

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java.lang.IllegalArgumentException: Comparison method violates its general contract! when sorting by last action #166

Open brita-sed opened 4 years ago

brita-sed commented 4 years ago

Precondition

.../eclipse.exe has launched.
iFL plugin has been installed.

Steps

Select a project.
Click iFL button.
Load scores... button.
Make different operations, like:

Select and deselect elements
Load wrong score table, then load the right one
Sort / order by different values.
Set different context based feedback

Finally sort by last action.

Expected results

Sorting will perform correctly.

Received results

!MESSAGE Unhandled event loop exception !STACK 0 java.lang.IllegalArgumentException: Comparison method violates its general contract!

illegal_argument_sorting_log.txt order_by_last_action

Environment:

Package: https://github.com/sed-szeged/iFL4Eclipse/releases/tag/V2.fix-feedback-dialog-bugs
Operating System: Windows 10 Pro, 64 bit
Eclipse version: 2019-09 R (4.13.0)