From 7d44dec9bd7c4bbfb8daf4843a0968797e009bea Mon Sep 17 00:00:00 2001
From: Aaron Davidson <aaron@databricks.com>
Date: Fri, 1 Nov 2013 21:04:09 -0700
Subject: [PATCH] Fix weird bug with specialized PrimitiveVector
---
.../org/apache/spark/util/collection/PrimitiveVector.scala | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/core/src/main/scala/org/apache/spark/util/collection/PrimitiveVector.scala b/core/src/main/scala/org/apache/spark/util/collection/PrimitiveVector.scala
index 721f12b711..369519c559 100644
--- a/core/src/main/scala/org/apache/spark/util/collection/PrimitiveVector.scala
+++ b/core/src/main/scala/org/apache/spark/util/collection/PrimitiveVector.scala
@@ -21,7 +21,11 @@ package org.apache.spark.util.collection
private[spark]
class PrimitiveVector[@specialized(Long, Int, Double) V: ClassManifest](initialSize: Int = 64) {
private var numElements = 0
- private var array = new Array[V](initialSize)
+ private var array: Array[V] = _
+
+ // NB: This must be separate from the declaration, otherwise the specialized parent class
+ // will get its own array with the same initial size. TODO: Figure out why...
+ array = new Array[V](initialSize)
def apply(index: Int): V = {
require(index < numElements)
--
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