--- jsr166/src/test/tck/Collection8Test.java	2018/05/22 15:51:31	1.55
+++ jsr166/src/test/tck/Collection8Test.java	2018/06/22 00:04:58	1.57
@@ -182,7 +182,7 @@ public class Collection8Test extends JSR
             () -> c.iterator().forEachRemaining(null),
             () -> c.spliterator().forEachRemaining(null),
             () -> c.spliterator().tryAdvance(null),
-            () -> c.toArray(null));
+            () -> c.toArray((Object[])null));
 
         if (!impl.permitsNulls()) {
             assertThrows(
@@ -952,7 +952,7 @@ public class Collection8Test extends JSR
         } catch (java.io.NotSerializableException acceptable) {}
     }
 
-    public void DISABLED_testReplaceAllIsNotStructuralModification() {
+    public void testReplaceAllIsNotStructuralModification() {
         Collection c = impl.emptyCollection();
         if (!(c instanceof List))
             return;