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-rw-r--r--tests/run/t2857.scala9
1 files changed, 9 insertions, 0 deletions
diff --git a/tests/run/t2857.scala b/tests/run/t2857.scala
new file mode 100644
index 000000000..5df2d440e
--- /dev/null
+++ b/tests/run/t2857.scala
@@ -0,0 +1,9 @@
+object Test extends dotty.runtime.LegacyApp {
+ import collection.mutable._
+ val m = new HashMap[Int, Set[String]] with MultiMap[Int, String]
+ m.addBinding(6, "Foo")
+ m.removeBinding(6, "Foo")
+ println(m.contains(6))
+}
+
+