Removing Warnings

Change-Id: I1823a926a82a378fbba7de43860a7273b5bca680
diff --git a/src/test/java/com/android/tools/r8/compatproguard/reflection/ReflectionTest.java b/src/test/java/com/android/tools/r8/compatproguard/reflection/ReflectionTest.java
index 678e2da..526ac68 100644
--- a/src/test/java/com/android/tools/r8/compatproguard/reflection/ReflectionTest.java
+++ b/src/test/java/com/android/tools/r8/compatproguard/reflection/ReflectionTest.java
@@ -48,7 +48,7 @@
     Method m;
     m = A.class.getMethod("method0");
     m.invoke(a);
-    m = A.class.getMethod("method0", null);
+    m = A.class.getMethod("method0", (Class<?>) null);
     m.invoke(a);
     m = A.class.getMethod("method0", (Class<?>[]) null);
     m.invoke(a);
diff --git a/src/test/java/com/android/tools/r8/shaking/desugar/interfacemethods/BridgeInliningTest.java b/src/test/java/com/android/tools/r8/shaking/desugar/interfacemethods/BridgeInliningTest.java
index e191921..3ac4400 100644
--- a/src/test/java/com/android/tools/r8/shaking/desugar/interfacemethods/BridgeInliningTest.java
+++ b/src/test/java/com/android/tools/r8/shaking/desugar/interfacemethods/BridgeInliningTest.java
@@ -31,7 +31,7 @@
   public static void main(String[] args) throws Exception {
     C obj = new C();
     for (Method m : obj.getClass().getDeclaredMethods()) {
-      m.invoke(obj, null);
+      m.invoke(obj, (Object) null);
     }
   }
 }