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/gnu/xml/dom/DomCharacterData.java

@@ -1,5 +1,5 @@
 /* DomCharacterData.java -- 
-   Copyright (C) 1999,2000,2001,2004 Free Software Foundation, Inc.
+   Copyright (C) 1999,2000,2001,2004,2006 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -39,6 +39,8 @@ package gnu.xml.dom;
 
 import org.w3c.dom.CharacterData;
 import org.w3c.dom.DOMException;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
 import org.w3c.dom.events.MutationEvent;
 
 
@@ -55,6 +57,30 @@ public abstract class DomCharacterData
   implements CharacterData
 {
 
+  /**
+   * Empty node list representing the children of character data nodes.
+   */
+  static class EmptyNodeList
+    implements NodeList
+  {
+
+    public int getLength()
+    {
+      return 0;
+    }
+
+    public Node item(int index)
+    {
+      return null;
+    }
+    
+  }
+
+  /**
+   * Singleton empty node list for character data nodes.
+   */
+  static final NodeList CHILD_NODES = new EmptyNodeList();
+
   private String text;
   
   // package private
@@ -279,6 +305,15 @@ public abstract class DomCharacterData
       }
   }
 
+  /**
+   * Returns an empty node list.
+   * Character data nodes do not have children.
+   */
+  public NodeList getChildNodes()
+  {
+    return CHILD_NODES;
+  }
+
   /**
    * The base URI for character data is <code>null</code>.
    * @since DOM Level 3 Core