--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/util/Collections/SetFromMap.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6301089
+ * @summary test Collections.newSetFromMap
+ * @author Martin Buchholz
+ */
+
+import java.util.*;
+
+public class SetFromMap {
+    static volatile int passed = 0, failed = 0;
+    static void pass() { passed++; }
+    static void fail() { failed++; Thread.dumpStack(); }
+    static void unexpected(Throwable t) { failed++; t.printStackTrace(); }
+    static void check(boolean cond) { if (cond) pass(); else fail(); }
+    static void equal(Object x, Object y) {
+        if (x == null ? y == null : x.equals(y)) pass();
+        else {System.out.println(x + " not equal to " + y); fail(); }}
+
+    public static void main(String[] args) throws Throwable {
+        try { realMain(); } catch (Throwable t) { unexpected(t); }
+
+        System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
+        if (failed > 0) throw new Exception("Some tests failed");
+    }
+
+    private static void realMain() throws Throwable {
+        try {
+            Map<String,Boolean> m = new IdentityHashMap<String,Boolean>();
+            Set<String> s = Collections.newSetFromMap(m);
+            String foo1 = new String("foo");
+            String foo2 = new String("foo");
+            String bar = new String("bar");
+            check(s.add(foo1));
+            check(s.add(foo2));
+            check(s.add(bar));
+            equal(s.size(), 3);
+            check(s.contains(foo1));
+            check(s.contains(foo2));
+            check(! s.contains(new String(foo1)));
+        } catch (Throwable t) { unexpected(t); }
+    }
+}