Re: [Ikvm-developers] java.lang.IllegalArgumentException: Comparison method violates its general contract!

[Volker B. <vol...@go...>]

Hi,

  A workaround can be the command line parameter:
-Djava.util.Arrays.useLegacyMergeSort=true

A possible can be in ShellFolder.compareTo(). I think this method 
violates the contract. It can be helpful to have a reproducible sample. 
Can you list the files in this folder?

Volker


Am 07.03.2013 20:36, schrieb Justin Smith:
> I'm seeing an error with IKVM trying to run a swing component.  This 
> issue does not occur on all of the machines that I test it on, and 
> seems to be random.  Although, I doubt that is the case.  On my 
> development Windows XP box (x86) this does not happen, but on a 
> co-worker's box it does.  I can reproduce this issue either by running 
> the executable, or by invoking ikvm from the command line from the 
> output jar.  This error does not occur if I run the class by using the 
> java command.  Again, it does not happen on every machine that I've 
> tested on.  Any ideas how to track this down?
>
> Exception in thread "main" java.lang.IllegalArgumentException: 
> Comparison method violates its general contract!
>         at java.util.ComparableTimSort.mergeHi(ComparableTimSort.java:835)
>         at java.util.ComparableTimSort.mergeAt(ComparableTimSort.java:453)
>         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 
> sun.awt.shell.Win32ShellFolderManager2.get(Win32ShellFolderManager2.java:276)
>         at sun.awt.shell.ShellFolder.get(ShellFolder.java:254)
>         at 
> javax.swing.plaf.metal.MetalFileChooserUI$DirectoryComboBoxModel$1.run(MetalFileChooserUI.java:944)
>         at 
> javax.swing.plaf.metal.MetalFileChooserUI$DirectoryComboBoxModel$1.run(MetalFileChooserUI.java:942)
>         at 
> java.security.AccessController.doPrivileged(AccessController.java:277)
>         at 
> java.security.AccessController.doPrivileged(AccessController.java:322)
>         at 
> javax.swing.plaf.metal.MetalFileChooserUI$DirectoryComboBoxModel.addItem(MetalFileChooserUI.java:942)
>         at 
> javax.swing.plaf.metal.MetalFileChooserUI$DirectoryComboBoxModel.access$800(MetalFileChooserUI.java:909)
>         at 
> javax.swing.plaf.metal.MetalFileChooserUI.doDirectoryChanged(MetalFileChooserUI.java:660)
>         at 
> javax.swing.plaf.metal.MetalFileChooserUI.access$1100(MetalFileChooserUI.java:53)
>         at 
> javax.swing.plaf.metal.MetalFileChooserUI$5.propertyChange(MetalFileChooserUI.java:747)
>         at 
> java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:334)
>         at 
> java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:328)
>         at 
> java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:265)
>         at java.awt.Component.firePropertyChange(Component.java:8383)
>         at 
> javax.swing.JFileChooser.setCurrentDirectory(JFileChooser.java:582)
>         at javax.swing.JFileChooser.<init>(JFileChooser.java:345)
>         at javax.swing.JFileChooser.<init>(JFileChooser.java:297)
>         at 
> de.schlichtherle.license.wizard.InstallPanel.initComponents(InstallPanel.java:68)
>         at 
> de.schlichtherle.license.wizard.InstallPanel.<init>(InstallPanel.java:33)
>         at 
> de.schlichtherle.license.wizard.InstallPanel$Descriptor.<init>(InstallPanel.java:223)
>         at 
> de.schlichtherle.license.wizard.LicenseWizard.init(LicenseWizard.java:49)
>         at 
> de.schlichtherle.license.wizard.LicenseWizard.<init>(LicenseWizard.java:28)
>         at com.summit.MyClass.main(MyClass.java:25)
>
>
> -- 
> Justin Smith
> Summit Management Systems, Inc
> (615) 281-9454
> Skype: jwsmith22
>
> People demand freedom of speech as a compensation for the freedom of 
> thought which they seldom use.  ~ Soren Kierkegaard
>
>
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