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diff --git a/libjava/classpath/javax/sound/sampled/Line.java b/libjava/classpath/javax/sound/sampled/Line.java
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+++ b/libjava/classpath/javax/sound/sampled/Line.java
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+/* An input or output line
+   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.sampled;
+
+/**
+ * A Line represents a single input or output audio line.
+ * @since 1.3
+ */
+public interface Line
+{
+  /**
+   * An object of this type holds information about a Line.
+   * @since 1.3
+   */
+  class Info
+  {
+    private Class klass;
+
+    /**
+     * Create a new Info object.  The argument is the class of the line,
+     * for instance TargetDataLine.class.
+     * @param klass the class of the line
+     */
+    public Info(Class klass)
+    {
+      this.klass = klass;
+    }
+
+    /**
+     * Return the line's class.
+     */
+    public Class getLineClass()
+    {
+      return klass;
+    }
+
+    /**
+     * Return true if this Info object matches the given object.
+     * @param other the object to match
+     * @return true if they match, false otherwise
+     */
+    public boolean matches(Info other)
+    {
+      return klass.equals(other.klass);
+    }
+
+    /**
+     * Return a description of this Info object.
+     */
+    public String toString()
+    {
+      return klass.toString();
+    }
+  }
+
+  /**
+   * Add a listener which will be notified whenever this Line changes state.
+   * @param listener the listener to notify
+   */
+  void addLineListener(LineListener listener);
+  
+  /**
+   * Close this line.
+   */
+  void close();
+
+  /**
+   * Return the control associated with this Line that matches the
+   * argument.
+   * @param what the type of the control to match
+   * @return the associated control
+   * @throws IllegalArgumentException if a control of this type is not
+   * available for this line
+   */
+  Control getControl(Control.Type what);
+
+  /**
+   * Return an array of controls associated with this Line.  Note that
+   * this method will not return null -- if there are no controls, it
+   * will return a zero-length array.
+   */
+  Control[] getControls();
+
+  /**
+   * Return the Info object associated with this Line.
+   */
+  Info getLineInfo();
+
+  /**
+   * Return true if a Control matching the argument is available for this
+   * Line, false otherwise.
+   * @param what the type of the control to match
+   */
+  boolean isControlSupported(Control.Type what);
+
+  /**
+   * Return true if this line is open, false otherwise.
+   */
+  boolean isOpen();
+
+  /**
+   * Open this line.
+   * @throws LineUnavailableException if the line is unavailable for some
+   * reason
+   */
+  void open() throws LineUnavailableException;
+
+  /**
+   * Remove the listener from this Line; after this call the listener will
+   * no longer be notified when this Line changes state.
+   * @param listener the listener to remove
+   */
+  void removeLineListener(LineListener listener);
+}