SI-6632 SI-6633 Fixes issues and data corruption in ListBuffer

 - Disallow negative positions for ListBuffer#insert/insertAll/update
 - Fix data corruption issue in ListBuffer#insert

1 files changed, 29 insertions, 0 deletions

diff --git a/test/files/run/t6632.scala b/test/files/run/t6632.scala
new file mode 100644
index 0000000000..c1c8d4abe0
--- /dev/null
+++ b/test/files/run/t6632.scala
@@ -0,0 +1,29 @@
+object Test extends App {
+  import collection.mutable.ListBuffer
+  
+  def newLB = ListBuffer('a, 'b, 'c, 'd, 'e)
+
+  val lb0 = newLB
+
+  try {
+    lb0.insert(-1, 'x)
+  } catch {
+    case ex: IndexOutOfBoundsException => println(ex)
+  }
+
+  val lb1 = newLB
+
+  try {
+    lb1.insertAll(-2, Array('x, 'y, 'z))
+  } catch {
+    case ex: IndexOutOfBoundsException => println(ex)
+  }
+
+  val lb2 = newLB
+
+  try {
+    lb2.update(-3, 'u)
+  } catch {
+    case ex: IndexOutOfBoundsException => println(ex)
+  }
+}
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