src/java.desktop/share/classes/com/sun/media/sound/PortMixerProvider.java

*** 1,7 ****
  /*
!  * Copyright (c) 2002, 2013, 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
--- 1,7 ----
  /*
!  * Copyright (c) 2002, 2015, 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
*** 102,119 ****
      }
  
  
      public Mixer getMixer(Mixer.Info info) {
          synchronized (PortMixerProvider.class) {
              for (int i = 0; i < infos.length; i++) {
                  if (infos[i].equals(info)) {
                      return getDevice(infos[i]);
                  }
              }
          }
!         throw new IllegalArgumentException("Mixer " + info.toString()
!                                            + " not supported by this provider.");
      }
  
  
      private static Mixer getDevice(PortMixerInfo info) {
          int index = info.getIndex();
--- 102,131 ----
      }
  
  
      public Mixer getMixer(Mixer.Info info) {
          synchronized (PortMixerProvider.class) {
+             // if the default device is asked, we provide the mixer
+             // with SourceDataLine's
+             if (info == null) {
+                 for (int i = 0; i < infos.length; i++) {
+                     Mixer mixer = getDevice(infos[i]);
+                     if (mixer.getSourceLineInfo().length > 0) {
+                         return mixer;
+                     }
+                 }
+             }
+             // otherwise get the first mixer that matches
+             // the requested info object
              for (int i = 0; i < infos.length; i++) {
                  if (infos[i].equals(info)) {
                      return getDevice(infos[i]);
                  }
              }
          }
!         throw new IllegalArgumentException(
!                 String.format("Mixer %s not supported by this provider", info));
      }
  
  
      private static Mixer getDevice(PortMixerInfo info) {
          int index = info.getIndex();