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src/java.base/share/classes/java/util/stream/DistinctOps.java

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rev 51700 : [mq]: 8210347-Combine-subsequent-calls-to-Set-contains-and-Set-add

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -168,12 +168,11 @@
                             downstream.end();
                         }
 
                         @Override
                         public void accept(T t) {
-                            if (!seen.contains(t)) {
-                                seen.add(t);
+                            if (seen.add(t)) {
                                 downstream.accept(t);
                             }
                         }
                     };
                 }
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