1 files changed, 18 insertions, 0 deletions
diff --git a/java/typeMigration/testData/refactoring/changeTypeSignature/TypeHierarchy.java b/java/typeMigration/testData/refactoring/changeTypeSignature/TypeHierarchy.java
new file mode 100644
index 000000000000..2bfa264828c0
--- /dev/null
+++ b/java/typeMigration/testData/refactoring/changeTypeSignature/TypeHierarchy.java
@@ -0,0 +1,18 @@
+abstract class A<E> {
+  abstract E foo();
+}
+
+abstract class B<T> extends A<T> {
+}
+
+class C extends B<S<caret>tring> {
+  String foo() {
+    return null;
+  }
+
+  void bar() {
+    if (foo() == null) {
+      //do smth
+    }
+  }
+}
+\ No newline at end of file