diff -r 000000000000 -r 959103a6100f test/tools/javac/T7126754.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/T7126754.java	Wed Apr 27 01:34:52 2016 +0800
@@ -0,0 +1,19 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 7126754
+ * @summary Generics compilation failure casting List<? extends Set...> to List<Set...>
+ * @compile T7126754.java
+ */
+
+import java.util.List;
+import java.util.Set;
+
+public class T7126754 {
+  public static void main(String[] args) {
+    List<Set<? extends String>> a = null;
+    List<? extends Set<? extends String>> b = a;
+
+    List<? extends Set<? extends String>> c = null;
+    List<Set<? extends String>> d = (List<Set<? extends String>>)c;
+  }
+}