ASSAP dar installation error

Hi Experts

I am getting this error when i try to install the ASSAP Enterprise_Integrations_Core.dar dar  on Documentum 6.5 version . Any help will be greatly appreciated.

INFO] Finished resolving artifact references Thu Jul 08 14:49:23 EDT 2010
[INFO] Applying all artifact installation options
[INFO] Finished applying all artifact installation options Thu Jul 08 14:49:23 EDT 2010
[INFO] Executing post-install actions
[ERROR] Unexpected error occured during install
java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeHi(TimSort.java:868)
at java.util.TimSort.mergeAt(TimSort.java:485)
at java.util.TimSort.mergeCollapse(TimSort.java:410)
at java.util.TimSort.sort(TimSort.java:214)
at java.util.TimSort.sort(TimSort.java:173)
at java.util.Arrays.sort(Arrays.java:653)
at java.util.Collections.sort(Collections.java:217)
at internal.com.emc.ide.installer.installable.InstallableObjectRegistry.getInstalledObjects(InstallableObjectRegistry.java:165)
at internal.com.emc.ide.installer.DarInstaller.executeAllPostInstallActions(DarInstaller.java:1305)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:586)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:330)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:301)
at com.emc.ide.installer.darinstaller.StandaloneDarInstallerHelper.doInPlaceInstall(StandaloneDarInstallerHelper.java:140)
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.installDar(StandaloneDarInstaller.java:315)
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.install(StandaloneDarInstaller.java:94)
at com.emc.ide.installer.darinstaller.ui.DarInstallerComposite$24.run(DarInstallerComposite.java:1427)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
[INFO] Restored Auto Build [Current Setting is OFF]...
[INFO] Reseting installer Thu Jul 08 14:49:23 EDT 2010
[INFO] Enterprise_Integrations_Core install failed
[ERROR] Unable to install dar file C:\Archive_Services_for_SAP_6.5_Windows\Enterprise_Integrations_Core\Enterprise_Integrations_Core.dar
com.emc.ide.installer.InstallException: Unexpected error occured during install
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:731)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:330)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:301)
at com.emc.ide.installer.darinstaller.StandaloneDarInstallerHelper.doInPlaceInstall(StandaloneDarInstallerHelper.java:140)
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.installDar(StandaloneDarInstaller.java:315)
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.install(StandaloneDarInstaller.java:94)
at com.emc.ide.installer.darinstaller.ui.DarInstallerComposite$24.run(DarInstallerComposite.java:1427)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeHi(TimSort.java:868)
at java.util.TimSort.mergeAt(TimSort.java:485)
at java.util.TimSort.mergeCollapse(TimSort.java:410)
at java.util.TimSort.sort(TimSort.java:214)
at java.util.TimSort.sort(TimSort.java:173)
at java.util.Arrays.sort(Arrays.java:653)
at java.util.Collections.sort(Collections.java:217)
at internal.com.emc.ide.installer.installable.InstallableObjectRegistry.getInstalledObjects(InstallableObjectRegistry.java:165)
at internal.com.emc.ide.installer.DarInstaller.executeAllPostInstallActions(DarInstaller.java:1305)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:586)
... 7 more
[ERROR] Install exception
Unable to install dar file C:\Archive_Services_for_SAP_6.5_Windows\Enterprise_Integrations_Core\Enterprise_Integrations_Core.dar
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.installDar(StandaloneDarInstaller.java:329)
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.install(StandaloneDarInstaller.java:94)
at com.emc.ide.installer.darinstaller.ui.DarInstallerComposite$24.run(DarInstallerComposite.java:1427)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: com.emc.ide.installer.InstallException: Unexpected error occured during install
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:731)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:330)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:301)
at com.emc.ide.installer.darinstaller.StandaloneDarInstallerHelper.doInPlaceInstall(StandaloneDarInstallerHelper.java:140)
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.installDar(StandaloneDarInstaller.java:315)
... 3 more
Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeHi(TimSort.java:868)
at java.util.TimSort.mergeAt(TimSort.java:485)
at java.util.TimSort.mergeCollapse(TimSort.java:410)
at java.util.TimSort.sort(TimSort.java:214)
at java.util.TimSort.sort(TimSort.java:173)
at java.util.Arrays.sort(Arrays.java:653)
at java.util.Collections.sort(Collections.java:217)
at internal.com.emc.ide.installer.installable.InstallableObjectRegistry.getInstalledObjects(InstallableObjectRegistry.java:165)
at internal.com.emc.ide.installer.DarInstaller.executeAllPostInstallActions(DarInstaller.java:1305)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:586)
... 7 more
--- Nested Exception ---
com.emc.ide.installer.InstallException: Unexpected error occured during install
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:731)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:330)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:301)
at com.emc.ide.installer.darinstaller.StandaloneDarInstallerHelper.doInPlaceInstall(StandaloneDarInstallerHelper.java:140)
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.installDar(StandaloneDarInstaller.java:315)
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.install(StandaloneDarInstaller.java:94)
at com.emc.ide.installer.darinstaller.ui.DarInstallerComposite$24.run(DarInstallerComposite.java:1427)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeHi(TimSort.java:868)
at java.util.TimSort.mergeAt(TimSort.java:485)
at java.util.TimSort.mergeCollapse(TimSort.java:410)
at java.util.TimSort.sort(TimSort.java:214)
at java.util.TimSort.sort(TimSort.java:173)
at java.util.Arrays.sort(Arrays.java:653)
at java.util.Collections.sort(Collections.java:217)
at internal.com.emc.ide.installer.installable.InstallableObjectRegistry.getInstalledObjects(InstallableObjectRegistry.java:165)
at internal.com.emc.ide.installer.DarInstaller.executeAllPostInstallActions(DarInstaller.java:1305)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:586)
... 7 more
[ERROR] com.emc.ide.logger.defaultimpl.DmLoggerDefault::getDefaultThrowableMessage (line 98)
com.emc.ide.installer.InstallException: Unable to install dar. Install exception occured. Unable to install dar file C:\Archive_Services_for_SAP_6.5_Windows\Enterprise_Integrations_Core\Enterprise_Integrations_Core.dar
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.install(StandaloneDarInstaller.java:109)
at com.emc.ide.installer.darinstaller.ui.DarInstallerComposite$24.run(DarInstallerComposite.java:1427)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: Unable to install dar file C:\Archive_Services_for_SAP_6.5_Windows\Enterprise_Integrations_Core\Enterprise_Integrations_Core.dar
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.installDar(StandaloneDarInstaller.java:329)
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.install(StandaloneDarInstaller.java:94)
... 2 more
Caused by: com.emc.ide.installer.InstallException: Unexpected error occured during install
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:731)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:330)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:301)
at com.emc.ide.installer.darinstaller.StandaloneDarInstallerHelper.doInPlaceInstall(StandaloneDarInstallerHelper.java:140)
at com.emc.ide.installer.darinstaller.StandaloneDarInstaller.installDar(StandaloneDarInstaller.java:315)
... 3 more
Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeHi(TimSort.java:868)
at java.util.TimSort.mergeAt(TimSort.java:485)
at java.util.TimSort.mergeCollapse(TimSort.java:410)
at java.util.TimSort.sort(TimSort.java:214)
at java.util.TimSort.sort(TimSort.java:173)
at java.util.Arrays.sort(Arrays.java:653)
at java.util.Collections.sort(Collections.java:217)
at internal.com.emc.ide.installer.installable.InstallableObjectRegistry.getInstalledObjects(InstallableObjectRegistry.java:165)
at internal.com.emc.ide.installer.DarInstaller.executeAllPostInstallActions(DarInstaller.java:1305)
at internal.com.emc.ide.installer.DarInstaller.doInstall(DarInstaller.java:586)
... 7 more