Sorting by labels in SPARQL query fail

SELECT ?label WHERE {
   ?object <http://www.w3.org/2000/01/rdf-schema#label> ?label . } ORDER BY ASC(?label)

java.lang.IllegalArgumentException: Comparison method violates its general contract!
    at java.base/java.util.TimSort.mergeLo(TimSort.java:781)
    at java.base/java.util.TimSort.mergeAt(TimSort.java:518)
    at java.base/java.util.TimSort.mergeCollapse(TimSort.java:448)
    at java.base/java.util.TimSort.sort(TimSort.java:245)
    at java.base/java.util.Arrays.sort(Arrays.java:1441)
    at org.apache.jena.atlas.data.AbortableComparator.abortableSort(AbortableComparator.java:57)
    at org.apache.jena.atlas.data.SortedDataBag.iterator(SortedDataBag.java:205)
    at org.apache.jena.atlas.data.SortedDataBag.iterator(SortedDataBag.java:192)
    at org.apache.jena.sparql.engine.iterator.QueryIterSort$SortedBindingIterator.initializeIterator(QueryIterSort.java:88)
    at org.apache.jena.atlas.iterator.IteratorDelayedInitialization.init(IteratorDelayedInitialization.java:38)
    at org.apache.jena.atlas.iterator.IteratorDelayedInitialization.hasNext(IteratorDelayedInitialization.java:48)
    at org.apache.jena.sparql.engine.iterator.QueryIterPlainWrapper.hasNextBinding(QueryIterPlainWrapper.java:59)
    at org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
    at org.apache.jena.sparql.engine.iterator.QueryIterConvert.hasNextBinding(QueryIterConvert.java:58)
    at org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
    at org.apache.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:38)
    at org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
    at org.apache.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:38)
    at org.apache.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:114)
    at org.apache.jena.sparql.exec.RowSetStream.hasNext(RowSetStream.java:47)
    at org.apache.jena.sparql.engine.ResultSetStream.hasNext(ResultSetStream.java:81)
    at test.SortingBug.isReproduced(SortingBug.java:53)
    at test.SortingBug.main(SortingBug.java:39)