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/javax/swing/AbstractButton.java

@@ -158,6 +158,14 @@ public abstract class AbstractButton extends JComponent
   {
     private static final long serialVersionUID = 1471056094226600578L;
 
+    /**
+     * The spec has no public/protected constructor for this class, so do we.
+     */
+    ButtonChangeListener()
+    {
+      // Nothing to do here.
+    }
+
     /**
      * Notified when the target of the listener changes its state.
      *