diff --git a/util/control/MessageOnlyException.scala b/util/control/MessageOnlyException.scala
new file mode 100644
index 000000000..6791a9339
--- /dev/null
+++ b/util/control/MessageOnlyException.scala
@@ -0,0 +1,7 @@
+/* sbt -- Simple Build Tool
+ * Copyright 2011 Mark Harrah
+ */
+package sbt
+
+final class MessageOnlyException(override val toString: String) extends RuntimeException(toString)
+final class NoMessageException extends RuntimeException
\ No newline at end of file