src/java.base/share/classes/com/sun/java/util/jar/pack/Package.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2016, 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

@@ -474,11 +474,12 @@
                     changed = 1;  // added more tuples
                 }
             } else if (localICs.isEmpty()) {
                 // It was a non-empty diff, but the local ICs were absent.
                 actualICs = null;
-                changed = 0;  // [] => null, no tuple change
+                // [] => null, no tuple change, but attribute deletion.
+                changed = -1;
             } else {
                 // Non-trivial diff was transmitted.
                 actualICs = computeICdiff();
                 // If we only added more ICs, return +1.
                 changed = actualICs.containsAll(localICs)? +1: -1;