--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/sound/sampled/DirectAudio/bug6400879.java	Tue Apr 17 13:03:01 2012 +0300
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2006, 2012, 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
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/* @test
+   @bug 6400879
+   @bug 7100140
+   @summary Tests that Start/Stop sequence doesn't hang
+   @author Alexey Menkov
+   @run main bug6400879
+ */
+
+import javax.sound.sampled.*;
+
+public class bug6400879 extends Thread {
+
+    public static void main(String args[]) throws Exception {
+        bug6400879 pThis = new bug6400879();
+        //pThis.init();
+        pThis.setDaemon(true);
+        pThis.start();
+        monitor(pThis);
+    }
+
+    static final long BLOCK_TIMEOUT = 5000;    // 5 sec
+
+    // monitors that pThis doesn't hang
+    public static void monitor(bug6400879 pThis) throws Exception {
+        long prevLoop = -1;
+        long prevTime = currentTimeMillis();
+        while (pThis.isAlive()) {
+            if (pThis.loopCounter == prevLoop) {
+                if (currentTimeMillis() - prevTime > BLOCK_TIMEOUT) {
+                    // block!
+                    log("Test FAILED.");
+                    throw new RuntimeException("Test FAILED: thread has been blocked!");
+                }
+            } else {
+                prevLoop = pThis.loopCounter;
+                prevTime = currentTimeMillis();
+            }
+            delay(500);    // sleep for 0.5 sec
+        }
+        log("Test sucessfully passed.");
+    }
+
+    volatile long loopCounter = 0;
+    final long LOOPS_PER_LINE = 100;
+
+    public void run() {
+        SourceDataLine line = null;
+
+        DataLine.Info line_info = new DataLine.Info(SourceDataLine.class, null);
+        Line.Info infos[] = AudioSystem.getSourceLineInfo(line_info);
+
+        log("total " + infos.length + " lines");
+
+        for (int lineNum = 0; lineNum < infos.length; lineNum++) {
+            try {
+                line = (SourceDataLine)AudioSystem.getLine(infos[lineNum]);
+                log("testing line: " + line);
+                line.open(line.getFormat());
+                for (int i=0; i<LOOPS_PER_LINE; i++) {
+                    log("start->stop (" + i + ")");
+                    line.start();
+                    line.stop();
+                    log(" - OK");
+                    loopCounter++;
+                }
+                line.close();
+                line = null;
+            } catch (LineUnavailableException e1) {
+                log("LineUnavailableException caught, test okay.");
+                log(e1.getMessage());
+            } catch (SecurityException e2) {
+                log("SecurityException caught, test okay.");
+                log(e2.getMessage());
+            } catch (IllegalArgumentException e3) {
+                log("IllegalArgumentException caught, test okay.");
+                log(e3.getMessage());
+            }
+            if (line != null) {
+                line.close();
+                line = null;
+            }
+        }
+
+    }
+
+
+    // helper routines
+    static long startTime = currentTimeMillis();
+    static long currentTimeMillis() {
+        //return System.nanoTime() / 1000000L;
+        return System.currentTimeMillis();
+    }
+    static void log(String s) {
+        long time = currentTimeMillis() - startTime;
+        long ms = time % 1000;
+        time /= 1000;
+        long sec = time % 60;
+        time /= 60;
+        long min = time % 60;
+        time /= 60;
+        System.out.println(""
+                + (time < 10 ? "0" : "") + time
+                + ":" + (min < 10 ? "0" : "") + min
+                + ":" + (sec < 10 ? "0" : "") + sec
+                + "." + (ms < 10 ? "00" : (ms < 100 ? "0" : "")) + ms
+                + " (" + Thread.currentThread().getName() + ") " + s);
+    }
+    static void delay(int millis) {
+        try {
+            Thread.sleep(millis);
+        } catch (InterruptedException e) {}
+    }
+}