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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » IIB v9 Toolkit error [comparison method violates contract]

IIB v9 Toolkit error [comparison method violates contract]

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bielesibub

Posted: Mon Nov 11, 2013 9:45 am Post subject: IIB v9 Toolkit error [comparison method violates contract]

Apprentice

Joined: 02 Jul 2008
Posts: 40
Location: Hampshire, UK

Hi all,

Just wanted to share a fix(?) that we discovered for anyone who may run into the same problem...

We kept having an issue re-opening the IIB Toolkit following a clean, the workspace would open but in the Application Development navigator we'd see the error;

Quote:

Could not create the view comparison method violates its general contract

Looks like it may have had something to do with Java 1.7?

https://bugs.eclipse.org/bugs/show_bug.cgi?id=371586

To get round it, we modified the eclipse.ini to include the line;

Quote:

-Djava.util.Arrays.useLegacyMergeSort=true

It appears to have fixed the issue, dread to think of what problems it may have caused though! I think a PMR has been raised with IBM on this.

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