diff --git a/kotlinx-coroutines-core/src/test/kotlin/kotlinx/coroutines/experimental/Try.kt b/kotlinx-coroutines-core/src/test/kotlin/kotlinx/coroutines/experimental/Try.kt
new file mode 100644
index 0000000..8f42ebc
--- /dev/null
+++ b/kotlinx-coroutines-core/src/test/kotlin/kotlinx/coroutines/experimental/Try.kt
@@ -0,0 +1,21 @@
+package kotlinx.coroutines.experimental
+
+public class Try<out T> private constructor(private val _value: Any?) {
+    private class Fail(val exception: Throwable) {
+        override fun toString(): String = "Failure[$exception]"
+    }
+
+    public companion object {
+        public operator fun <T> invoke(block: () -> T): Try<T> =
+                try { Success(block()) } catch(e: Throwable) { Failure<T>(e) }
+        public fun <T> Success(value: T) = Try<T>(value)
+        public fun <T> Failure(exception: Throwable) = Try<T>(Fail(exception))
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    public val value: T get() = if (_value is Fail) throw _value.exception else _value as T
+
+    public val exception: Throwable? get() = (_value as? Fail)?.exception
+
+    override fun toString(): String = _value.toString()
+}