[GitHub] [carbondata] xubo245 commented on a change in pull request #3273: [CARBONDATA-3342] Fix the IllegalArgumentException when using filter and result is null.

[GitBox]

xubo245 commented on a change in pull request #3273:
URL: https://github.com/apache/carbondata/pull/3273#discussion_r417740595



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File path: sdk/sdk/src/main/java/org/apache/carbondata/sdk/file/CarbonReader.java
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@@ -87,9 +91,13 @@ public boolean hasNext() throws IOException, InterruptedException {
         readers.set(index, null);
         index++;
         currentReader = readers.get(index);
-        return currentReader.nextKeyValue();
+        boolean result = currentReader.nextKeyValue();

Review comment:
       currentReader set null only when (0 == readers.size();
   
   before this code, already add:
   
   ```
    if (0 == readers.size()  {
         return false;
       }
   ```




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