diff --git a/sbt/src/sbt-test/classloader-cache/close-run/src/main/scala/Main.scala b/sbt/src/sbt-test/classloader-cache/close-run/src/main/scala/Main.scala
new file mode 100644
index 000000000..4b57eebb6
--- /dev/null
+++ b/sbt/src/sbt-test/classloader-cache/close-run/src/main/scala/Main.scala
@@ -0,0 +1,10 @@
+object Main extends App {
+  class Foo
+  new Thread {
+    override def run(): Unit = {
+      Thread.sleep(500)
+      try new Foo
+      catch { case t: Throwable => sys.exit(1) }
+    }
+  }.start()
+}
\ No newline at end of file
diff --git a/sbt/src/sbt-test/classloader-cache/close-run/test b/sbt/src/sbt-test/classloader-cache/close-run/test
new file mode 100644
index 000000000..9e4c2371c
--- /dev/null
+++ b/sbt/src/sbt-test/classloader-cache/close-run/test
@@ -0,0 +1 @@
+> run
\ No newline at end of file