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[POAE7-961] fix null pointer issue when offheap enabled. #21

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Mar 25, 2021
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[POAE7-961] fix null pointer issue when offheap enabled. #21

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3 changes: 2 additions & 1 deletion src/main/java/org/apache/spark/util/collection/unsafe/sort/PMemWriter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -180,7 +180,8 @@ public void updateLongArray(LongArray sortedArray, int numRecords, int position)
// update recordPointer in this array
long originalRecordPointer = sortedArray.get(position);
MemoryBlock page = taskMemoryManager.getOriginalPage(originalRecordPointer);
long offset = taskMemoryManager.getOffsetInPage(originalRecordPointer) - page.getBaseOffset();
long baseOffset = page == null? 0: page.getBaseOffset();
long offset = taskMemoryManager.getOffsetInPage(originalRecordPointer) - baseOffset;
MemoryBlock pMemBlock = pageMap.get(page);
long pMemOffset = pMemBlock.getBaseOffset() + offset;
sortedArray.set(position, pMemOffset);
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