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diff --git a/libjava/classpath/javax/sound/midi/spi/MidiDeviceProvider.java b/libjava/classpath/javax/sound/midi/spi/MidiDeviceProvider.java
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+/* MidiDeviceProvider.java -- Abstract parent for a MIDI device provider.
+   Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.sound.midi.spi;
+
+import javax.sound.midi.*;
+
+/**
+ * The abstract base class for all MidiDeviceProvider types.
+ * 
+ * @author Anthony Green (green@redhat.com)
+ * @since 1.3
+ *
+ */
+public abstract class MidiDeviceProvider
+{
+  /**
+   * Returns true if this provider supports a specific MIDI device.
+   * 
+   * @param info the MIDI device descriptor
+   * @return true if this provider supports info
+   */
+  public boolean isDeviceSupported(MidiDevice.Info info)
+  {
+    MidiDevice.Info infos[] = getDeviceInfo();
+    
+    int i = infos.length;
+    
+    while (i > 0)
+    {
+      if (info.equals(infos[--i]))
+        return true;
+    }
+    
+    return false;
+  }
+  
+  /**
+   * Get the list descriptors for all MIDI devices supported by
+   * this provider.
+   * 
+   * @return an array of descriptors for all supported MIDI devices.
+   */
+  public abstract MidiDevice.Info[] getDeviceInfo();
+  
+  /**
+   * Get the MidiDevice for the MIDI device described by info
+   * 
+   * @param info the descriptor for the MIDI device we want
+   * @return the MidiDevice we're looking for
+   * @throws IllegalArgumentException is this provider doesn't support info
+   */
+  public abstract MidiDevice getDevice(MidiDevice.Info info)
+    throws IllegalArgumentException;
+}