1 files changed, 17 insertions, 0 deletions
diff --git a/test/files/neg/t9636.scala b/test/files/neg/t9636.scala
new file mode 100644
index 0000000000..7ad5fb3e9e
--- /dev/null
+++ b/test/files/neg/t9636.scala
@@ -0,0 +1,17 @@
+
+import java.io._
+import java.util.zip._
+
+class C {
+  def isWrapper(is: FileInputStream): InputStream = {
+    val pb = new PushbackInputStream(is, 2)
+    val signature = new Array[Byte](2)
+    pb.read(signature)
+    pb.unread(signature)
+    if (signature.sameElements(Array(0x1F, 0x8B))) {
+      new GZIPInputStream(new BufferedInputStream(pb))
+    } else {
+      pb
+    }
+  }
+}