2350417 - UMT fails with error "Objects of kind "Universe" were not updated because the "Universe" plugin failed unexpectedly while sorting these objects" while migrating universes.

While migrating the universes from XI 3.1 to BI 4.2 none of the universes are migrated and UMT console logs show below error:-

"Objects of kind "Universe" were not updated because the "Universe" plugin failed unexpectedly while sorting these objects"

The UMT trace log file has the below exceptions:-

com.businessobjects.upgrademanager||IMigrationCallback#onFailure:
MigrationException$ThrowableWrapper: java.lang.IllegalArgumentException: Comparison method violates its general contract!
 at com.businessobjects.migration.engine.exception.MigrationException.wrap(MigrationException.java:24)
 at com.businessobjects.migration.engine.internal.MigrationEngine$2.run(MigrationEngine.java:507)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
 at java.util.concurrent.FutureTask.run(FutureTask.java:266)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 at java.lang.Thread.run(Thread.java:812)
Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract!
 at java.util.TimSort.mergeLo(TimSort.java:777)
 at java.util.TimSort.mergeAt(TimSort.java:514)
 at java.util.TimSort.mergeCollapse(TimSort.java:441)
 at java.util.TimSort.sort(TimSort.java:245)
 at java.util.Arrays.sort(Arrays.java:1512)
 at java.util.ArrayList.sort(ArrayList.java:1454)
 at java.util.Collections.sort(Collections.java:175)
 at com.businessobjects.migration.engine.internal.MigrationEngine$2.run(MigrationEngine.java:502)
 ... 5 more�
|017321B79D134CDE886A5F3446775B4Cb5|2016 07 22 06:58:24.817|-0400|Error| |==|E| |upgrademanagementtool| 9920| 110|pool-3-thread-1 | ||||||||||||||||||||com.businessobjects.upgrademanager||IMigrationCallback#onFailure:
com.businessobjects.migration.engine.exception.MigrationException$ObjectSorting: Objects of kind "Universe" were not updated because the "Universe" plugin failed unexpectedly while sorting these objects.
 at com.businessobjects.migration.engine.internal.MigrationEngine$2.run(MigrationEngine.java:509)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
 at java.util.concurrent.FutureTask.run(FutureTask.java:266)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 at java.lang.Thread.run(Thread.java:812)

• SAP BusinessObjects Business Intelligence 4.2

Universe, object of kind, sorting, BI 4.2, migration, UMT, universe plugin failed. , KBA , BI-BIP-UMT , Upgrade management tool , Problem