diff options
-rw-r--r-- | client/src/main/java/com/vaadin/client/data/AbstractRemoteDataSource.java | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/client/src/main/java/com/vaadin/client/data/AbstractRemoteDataSource.java b/client/src/main/java/com/vaadin/client/data/AbstractRemoteDataSource.java index d8de542faa..d1ff848401 100644 --- a/client/src/main/java/com/vaadin/client/data/AbstractRemoteDataSource.java +++ b/client/src/main/java/com/vaadin/client/data/AbstractRemoteDataSource.java @@ -665,7 +665,15 @@ public abstract class AbstractRemoteDataSource<T> implements DataSource<T> { Range remainsBefore = partitions[0]; Range transposedRemainsAfter = partitions[2] .offsetBy(-removedRange.length()); - cached = remainsBefore.combineWith(transposedRemainsAfter); + // #8840 either can be empty if the removed range was over the + // cached range + if (remainsBefore.isEmpty()) { + cached = transposedRemainsAfter; + } else if (transposedRemainsAfter.isEmpty()) { + cached = remainsBefore; + } else { + cached = remainsBefore.combineWith(transposedRemainsAfter); + } } else if (removedRange.getEnd() <= cached.getStart()) { // Removal was before the cache. offset the cache. cached = cached.offsetBy(-removedRange.length()); |