[GitHub] incubator-hivemall pull request #124: [HIVEMALL-157] Return empty list when ...

[takuti]

Github user takuti commented on a diff in the pull request:

    https://github.com/apache/incubator-hivemall/pull/124#discussion_r148197442
  
    --- Diff: core/src/main/java/hivemall/tools/list/UDAFToOrderedList.java ---
    @@ -406,6 +406,11 @@ void merge(@Nonnull List<Object> o_keyList, @Nonnull 
List<Object> o_valueList) {
     
                 @Nonnull
                 Pair<List<Object>, List<Object>> drainQueue() {
    +                if (queueHandler == null) {
    +                    return Pair.of((List<Object>) new ArrayList<Object>(),
    +                        (List<Object>) new ArrayList<Object>());
    --- End diff --
    
    @myui Updated. PTAL!


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