7 files changed, 20 insertions, 15 deletions
diff --git a/lib/scala-compiler.jar.desired.sha1 b/lib/scala-compiler.jar.desired.sha1
index 3d5a0edfd5..7479a1861e 100644
--- a/lib/scala-compiler.jar.desired.sha1
+++ b/lib/scala-compiler.jar.desired.sha1
@@ -1 +1 @@
-52e6cc393c953df8c6cbe710f8d62dce6cd1f671 ?scala-compiler.jar
+5d99e65aaa8e00c4815e011a8dfc495cb38bdfcc ?scala-compiler.jar
diff --git a/lib/scala-library.jar.desired.sha1 b/lib/scala-library.jar.desired.sha1
index 028ef2fae2..76914369b5 100644
--- a/lib/scala-library.jar.desired.sha1
+++ b/lib/scala-library.jar.desired.sha1
@@ -1 +1 @@
-569b35836872765f0b96a6477d7c37a257cc62e7 ?scala-library.jar
+53ddaba2c7d56b360eda1a56c3eef5ec23ef14ca ?scala-library.jar
diff --git a/src/compiler/scala/tools/nsc/transform/Erasure.scala b/src/compiler/scala/tools/nsc/transform/Erasure.scala
index 5e61359a25..45dacd5c14 100644
--- a/src/compiler/scala/tools/nsc/transform/Erasure.scala
+++ b/src/compiler/scala/tools/nsc/transform/Erasure.scala
@@ -992,7 +992,7 @@ abstract class Erasure extends AddInterfaces
           }
           // Rewrite 5.getClass to ScalaRunTime.anyValClass(5)
           else if (isPrimitiveValueClass(qual.tpe.typeSymbol))
-            global.typer.typed(gen.mkRuntimeCall(nme.anyValClass, List(qual)))
+            global.typer.typed(gen.mkRuntimeCall(nme.anyValClass, List(qual, typer.resolveClassTag(tree, qual.tpe.widen))))
           else
             tree
 
diff --git a/src/library/scala/reflect/ClassTag.scala b/src/library/scala/reflect/ClassTag.scala
index 06960a5478..860406f205 100644
--- a/src/library/scala/reflect/ClassTag.scala
+++ b/src/library/scala/reflect/ClassTag.scala
@@ -39,7 +39,11 @@ abstract case class ClassTag[T](erasure: jClass[_]) extends ArrayTag[T] {
 
   /** Produces a `ClassTag` that knows how to build `Array[Array[T]]` */
   def wrap: ClassTag[Array[T]] = {
-    val arrayClazz = java.lang.reflect.Array.newInstance(erasure, 0).getClass.asInstanceOf[jClass[Array[T]]]
+    // newInstance throws an exception if the erasure is Void.TYPE
+    // see SI-5680
+    val arrayClazz =
+      if (erasure == java.lang.Void.TYPE) classOf[Array[Unit]]
+      else java.lang.reflect.Array.newInstance(erasure, 0).getClass.asInstanceOf[jClass[Array[T]]]
     ClassTag[Array[T]](arrayClazz)
   }
 
diff --git a/src/library/scala/runtime/ScalaRunTime.scala b/src/library/scala/runtime/ScalaRunTime.scala
index 7a932c21bc..d2adc26d66 100644
--- a/src/library/scala/runtime/ScalaRunTime.scala
+++ b/src/library/scala/runtime/ScalaRunTime.scala
@@ -51,17 +51,8 @@ object ScalaRunTime {
    *  e.g. classOf[int], not classOf[java.lang.Integer].  The compiler
    *  rewrites expressions like 5.getClass to come here.
    */
-  def anyValClass[T <: AnyVal](value: T): Class[T] = (value match {
-    case x: Byte    => java.lang.Byte.TYPE
-    case x: Short   => java.lang.Short.TYPE
-    case x: Char    => java.lang.Character.TYPE
-    case x: Int     => java.lang.Integer.TYPE
-    case x: Long    => java.lang.Long.TYPE
-    case x: Float   => java.lang.Float.TYPE
-    case x: Double  => java.lang.Double.TYPE
-    case x: Boolean => java.lang.Boolean.TYPE
-    case x: Unit    => java.lang.Void.TYPE
-  }).asInstanceOf[Class[T]]
+  def anyValClass[T <: AnyVal : ClassManifest](value: T): Class[T] =
+    classManifest[T].erasure.asInstanceOf[Class[T]]
 
   /** Retrieve generic array element */
   def array_apply(xs: AnyRef, idx: Int): Any = xs match {
diff --git a/test/files/run/t5680.check b/test/files/run/t5680.check
new file mode 100644
index 0000000000..9fec3b6505
--- /dev/null
+++ b/test/files/run/t5680.check
@@ -0,0 +1,3 @@
+[Lscala.runtime.BoxedUnit
+()
+()
diff --git a/test/files/run/t5680.scala b/test/files/run/t5680.scala
new file mode 100644
index 0000000000..f61cbd6e20
--- /dev/null
+++ b/test/files/run/t5680.scala
@@ -0,0 +1,7 @@
+object Test extends App {
+  val x = Array[Unit]((), ())
+  println(x.toString.substring(0, x.toString.indexOf(";")))
+  println(x(0))
+  x(1) = ()
+  println(x(1))
+}
+\ No newline at end of file