Github user davies commented on the pull request:
https://github.com/apache/spark/pull/8264#issuecomment-132290516
@yu-iskw You add this patch, then you do not need the special version of
rand/randn
```
--- a/core/src/main/scala/org/apache/spark/api/r/RBackendHandler.scala
+++ b/core/src/main/scala/org/apache/spark/api/r/RBackendHandler.scala
@@ -181,6 +181,7 @@ private[r] class RBackendHandler(server: RBackend)
// Convert native parameters to Object types as args is
Array[Object] here
if (parameterType.isPrimitive) {
parameterWrapperType = parameterType match {
+ case java.lang.Long.TYPE => classOf[java.lang.Integer] // R
does not have long
case java.lang.Integer.TYPE => classOf[java.lang.Integer]
case java.lang.Double.TYPE => classOf[java.lang.Double]
case java.lang.Boolean.TYPE => classOf[java.lang.Boolean]
```
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