diff --git a/src/library/scala/LowPriorityImplicits.scala b/src/library/scala/LowPriorityImplicits.scala
index acd9c5dba..0c71b4373 100644
--- a/src/library/scala/LowPriorityImplicits.scala
+++ b/src/library/scala/LowPriorityImplicits.scala
@@ -26,21 +26,21 @@ import collection.generic.CanBuildFrom
 class LowPriorityImplicits {
 
   implicit def genericWrapArray[T](xs: Array[T]): WrappedArray[T] = 
-    if (xs != null) WrappedArray.make(xs) else null
+    if (xs ne null) WrappedArray.make(xs) else null
 
-  implicit def wrapRefArray[T <: AnyRef](xs: Array[T]): WrappedArray[T] = if (xs != null) new WrappedArray.ofRef[T](xs) else null
-  implicit def wrapIntArray(xs: Array[Int]): WrappedArray[Int] = if (xs != null) new WrappedArray.ofInt(xs) else null
-  implicit def wrapDoubleArray(xs: Array[Double]): WrappedArray[Double] = if (xs != null) new WrappedArray.ofDouble(xs) else null
-  implicit def wrapLongArray(xs: Array[Long]): WrappedArray[Long] = if (xs != null) new WrappedArray.ofLong(xs) else null
-  implicit def wrapFloatArray(xs: Array[Float]): WrappedArray[Float] = if (xs != null) new WrappedArray.ofFloat(xs) else null
-  implicit def wrapCharArray(xs: Array[Char]): WrappedArray[Char] = if (xs != null) new WrappedArray.ofChar(xs) else null
-  implicit def wrapByteArray(xs: Array[Byte]): WrappedArray[Byte] = if (xs != null) new WrappedArray.ofByte(xs) else null
-  implicit def wrapShortArray(xs: Array[Short]): WrappedArray[Short] = if (xs != null) new WrappedArray.ofShort(xs) else null
-  implicit def wrapBooleanArray(xs: Array[Boolean]): WrappedArray[Boolean] = if (xs != null) new WrappedArray.ofBoolean(xs) else null
-  implicit def wrapUnitArray(xs: Array[Unit]): WrappedArray[Unit] = if (xs != null) new WrappedArray.ofUnit(xs) else null
+  implicit def wrapRefArray[T <: AnyRef](xs: Array[T]): WrappedArray[T] = if (xs ne null) new WrappedArray.ofRef[T](xs) else null
+  implicit def wrapIntArray(xs: Array[Int]): WrappedArray[Int] = if (xs ne null) new WrappedArray.ofInt(xs) else null
+  implicit def wrapDoubleArray(xs: Array[Double]): WrappedArray[Double] = if (xs ne null) new WrappedArray.ofDouble(xs) else null
+  implicit def wrapLongArray(xs: Array[Long]): WrappedArray[Long] = if (xs ne null) new WrappedArray.ofLong(xs) else null
+  implicit def wrapFloatArray(xs: Array[Float]): WrappedArray[Float] = if (xs ne null) new WrappedArray.ofFloat(xs) else null
+  implicit def wrapCharArray(xs: Array[Char]): WrappedArray[Char] = if (xs ne null) new WrappedArray.ofChar(xs) else null
+  implicit def wrapByteArray(xs: Array[Byte]): WrappedArray[Byte] = if (xs ne null) new WrappedArray.ofByte(xs) else null
+  implicit def wrapShortArray(xs: Array[Short]): WrappedArray[Short] = if (xs ne null) new WrappedArray.ofShort(xs) else null
+  implicit def wrapBooleanArray(xs: Array[Boolean]): WrappedArray[Boolean] = if (xs ne null) new WrappedArray.ofBoolean(xs) else null
+  implicit def wrapUnitArray(xs: Array[Unit]): WrappedArray[Unit] = if (xs ne null) new WrappedArray.ofUnit(xs) else null
 
-  implicit def wrapString(s: String): WrappedString = if (s != null) new WrappedString(s) else null
-  implicit def unwrapString(ws: WrappedString): String = if (ws != null) ws.self else null
+  implicit def wrapString(s: String): WrappedString = if (s ne null) new WrappedString(s) else null
+  implicit def unwrapString(ws: WrappedString): String = if (ws ne null) ws.self else null
 
   implicit def fallbackStringCanBuildFrom[T]: CanBuildFrom[String, T, collection.immutable.IndexedSeq[T]] = 
     new CanBuildFrom[String, T, collection.immutable.IndexedSeq[T]] {