diff --git a/test/911-get-stack-trace/src/ControlData.java b/test/911-get-stack-trace/src/ControlData.java
new file mode 100644
index 0000000..76ac4b8
--- /dev/null
+++ b/test/911-get-stack-trace/src/ControlData.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.util.concurrent.CountDownLatch;
+
+public class ControlData {
+  CountDownLatch reached;
+  Object waitFor = null;
+  volatile boolean stop = false;
+
+  public ControlData() {
+    this(1);
+  }
+
+  public ControlData(int latchCount) {
+    reached = new CountDownLatch(latchCount);
+  }
+}