--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/ThreadGroup/SetMaxPriority.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2007 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 4708197 6497629
+ * @summary Test for max priority setting that matches spec
+ * @author Pete Soper
+ */
+
+public class SetMaxPriority {
+
+    public static void main(String args[]) throws Exception {
+        ThreadGroup tg = new ThreadGroup("foo");
+        ThreadGroup ptg = tg.getParent();
+        int currentMaxPriority = tg.getMaxPriority();
+        int halfMaxPriority = ptg.getMaxPriority() / 2;
+        if (halfMaxPriority - Thread.MIN_PRIORITY < 2) {
+            throw new RuntimeException("SetMaxPriority test no longer valid: starting parent max priority too close to Thread.MIN_PRIORITY");
+        }
+        tg.setMaxPriority(halfMaxPriority - 2);
+        currentMaxPriority = tg.getMaxPriority();
+        if (currentMaxPriority != halfMaxPriority - 2) {
+            throw new RuntimeException("SetMaxPriority failed: max priority not changed");
+        }
+
+        // This will fail if bug 6497629 is present because the min tests is
+        // being made with the (just lowered) max instead of the parent max,
+        // preventing the priority from being moved back up.
+        tg.setMaxPriority(currentMaxPriority + 1);
+        int newMaxPriority = tg.getMaxPriority();
+        if (newMaxPriority != currentMaxPriority + 1) {
+            throw new RuntimeException("SetMaxPriority failed: defect 6497629 present");
+        }
+
+        // Confirm that max priorities out of range on both ends have no
+        // effect.
+        for (int badPriority : new int[] {Thread.MIN_PRIORITY - 1,
+                                          Thread.MAX_PRIORITY + 1}) {
+            int oldPriority = tg.getMaxPriority();
+            tg.setMaxPriority(badPriority);
+            if (oldPriority != tg.getMaxPriority())
+                throw new RuntimeException(
+                    "setMaxPriority bad arg not ignored as specified");
+        }
+
+        System.out.println("SetMaxPriority passed");
+    }
+}