Imported GNU Classpath 0.90

Imported GNU Classpath 0.90
       * scripts/makemake.tcl: Set gnu/java/awt/peer/swing to ignore.
       * gnu/classpath/jdwp/VMFrame.java (SIZE): New constant.
       * java/lang/VMCompiler.java: Use gnu.java.security.hash.MD5.
       * java/lang/Math.java: New override file.
       * java/lang/Character.java: Merged from Classpath.
       (start, end): Now 'int's.
       (canonicalName): New field.
       (CANONICAL_NAME, NO_SPACES_NAME, CONSTANT_NAME): New constants.
       (UnicodeBlock): Added argument.
       (of): New overload.
       (forName): New method.
       Updated unicode blocks.
       (sets): Updated.
       * sources.am: Regenerated.
       * Makefile.in: Likewise.

From-SVN: r111942

libjava/classpath/java/awt/dnd/DragSource.java

@@ -90,7 +90,7 @@ public class DragSource implements Serializable
    */
   public static DragSource getDefaultDragSource()
   {
-    return null;
+    return new DragSource();
   }
 
   public static boolean isDragImageSupported()
@@ -172,13 +172,34 @@ public class DragSource implements Serializable
     return flavorMap;
   }
 
+  /**
+   * Dummy DragGestureRecognizer when Toolkit doesn't support drag and drop.
+   */
+  static class NoDragGestureRecognizer extends DragGestureRecognizer
+  {
+    NoDragGestureRecognizer(DragSource ds, Component c, int actions,
+                            DragGestureListener dgl)
+    {
+      super(ds, c, actions, dgl);
+    }
+
+    protected void registerListeners() { }
+    protected void unregisterListeners() { }
+  }
+
   public DragGestureRecognizer
     createDragGestureRecognizer(Class recognizer, Component c, int actions,
                                 DragGestureListener dgl)
   {
-    return Toolkit.getDefaultToolkit ()
+    DragGestureRecognizer dgr;
+    dgr = Toolkit.getDefaultToolkit ()
                   .createDragGestureRecognizer (recognizer, this, c, actions,
                                                 dgl);
+
+    if (dgr == null)
+      dgr = new NoDragGestureRecognizer(this, c, actions, dgl);
+
+    return dgr;
   }
 
   public DragGestureRecognizer