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diff --git a/libjava/classpath/javax/swing/text/StyleContext.java b/libjava/classpath/javax/swing/text/StyleContext.java
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+++ b/libjava/classpath/javax/swing/text/StyleContext.java
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+/* StyleContext.java --
+   Copyright (C) 2004 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.swing.text;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.FontMetrics;
+import java.awt.Toolkit;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+import java.util.Enumeration;
+import java.util.EventListener;
+import java.util.Hashtable;
+
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+import javax.swing.event.EventListenerList;
+
+public class StyleContext 
+    implements Serializable, AbstractDocument.AttributeContext
+{
+  public class NamedStyle
+    implements Serializable, Style
+  {
+    protected ChangeEvent changeEvent;
+    protected EventListenerList listenerList;
+      
+    AttributeSet attributes;
+    String name;
+
+    public NamedStyle()
+    {
+      this(null, null);
+    }
+
+    public NamedStyle(Style parent)
+    {
+      this(null, parent);
+    }
+
+    public NamedStyle(String name, Style parent)
+    {
+      this.name = name;
+      this.attributes = getEmptySet();
+      this.changeEvent = new ChangeEvent(this);
+      this.listenerList = new EventListenerList();
+      setResolveParent(parent);
+    }
+
+    public String getName()
+    {
+      return name;
+    }
+
+    public void setName(String n)
+    {
+      name = n;
+      fireStateChanged();
+    }
+
+    public void addChangeListener(ChangeListener l)
+    {
+      listenerList.add(ChangeListener.class, l);
+    }
+      
+    public void removeChangeListener(ChangeListener l)
+    {
+      listenerList.remove(ChangeListener.class, l);
+    }
+      
+    public EventListener[] getListeners(Class listenerType)
+    {
+      return listenerList.getListeners(listenerType);
+    }
+
+    public ChangeListener[] getChangeListeners()
+    {
+      return (ChangeListener[]) getListeners(ChangeListener.class);
+    }
+
+    protected  void fireStateChanged()
+    {
+      ChangeListener[] listeners = getChangeListeners();
+      for (int i = 0; i < listeners.length; ++i)
+        {
+          listeners[i].stateChanged(changeEvent);
+        }
+    }
+
+    public void addAttribute(Object name, Object value)
+    {
+      attributes = StyleContext.this.addAttribute(attributes, name, value);
+      fireStateChanged();
+    }
+
+    public void addAttributes(AttributeSet attr)
+    {
+      attributes = StyleContext.this.addAttributes(attributes, attr);
+      fireStateChanged();
+    }
+
+    public boolean containsAttribute(Object name, Object value)
+    {
+      return attributes.containsAttribute(name, value);
+    }
+      
+    public boolean containsAttributes(AttributeSet attrs)
+    {
+      return attributes.containsAttributes(attrs);
+    }
+
+    public AttributeSet copyAttributes()
+    {
+      return attributes.copyAttributes();
+    }
+            
+    public Object getAttribute(Object attrName)
+    {
+      return attributes.getAttribute(attrName);
+    }
+
+    public int getAttributeCount()
+    {
+      return attributes.getAttributeCount();
+    }
+
+    public Enumeration getAttributeNames()
+    {
+      return attributes.getAttributeNames();
+    }
+      
+    public boolean isDefined(Object attrName)
+    {
+      return attributes.isDefined(attrName);        
+    }
+
+    public boolean isEqual(AttributeSet attr)
+    {
+      return attributes.isEqual(attr);
+    }
+
+    public void removeAttribute(Object name)
+    {
+      attributes = StyleContext.this.removeAttribute(attributes, name);
+      fireStateChanged();
+    }
+
+    public void removeAttributes(AttributeSet attrs)
+    {
+      attributes = StyleContext.this.removeAttributes(attributes, attrs);
+      fireStateChanged();
+    }
+
+    public void removeAttributes(Enumeration names)
+    {
+      attributes = StyleContext.this.removeAttributes(attributes, names);
+      fireStateChanged();
+    }
+
+
+    public AttributeSet getResolveParent()
+    {
+      return attributes.getResolveParent();        
+    }
+
+    public void setResolveParent(AttributeSet parent)
+    {
+      if (parent != null)
+        {
+          attributes = StyleContext.this.addAttribute
+            (attributes, ResolveAttribute, parent);
+        }
+      fireStateChanged();
+    }
+      
+    public String toString()
+    {
+      return ("[NamedStyle: name=" + name + ", attrs=" + attributes.toString() + "]");
+    }      
+  }
+  
+  public class SmallAttributeSet
+    implements AttributeSet
+  {
+    final Object [] attrs;
+    public SmallAttributeSet(AttributeSet a)
+    {
+      if (a == null)
+        attrs = new Object[0];
+      else
+        {
+          int n = a.getAttributeCount();
+          int i = 0;
+          attrs = new Object[n * 2];
+          Enumeration e = a.getAttributeNames();
+          while (e.hasMoreElements())
+            {
+              Object name = e.nextElement();
+              attrs[i++] = name;
+              attrs[i++] = a.getAttribute(name);
+            }
+        }
+    }
+
+    public SmallAttributeSet(Object [] a)
+    {
+      if (a == null)
+        attrs = new Object[0];
+      else
+        {
+          attrs = new Object[a.length];
+          System.arraycopy(a, 0, attrs, 0, a.length);
+        }
+    }
+
+    public Object clone()
+    {
+      return new SmallAttributeSet(this.attrs);
+    }
+
+    public boolean containsAttribute(Object name, Object value)
+    {
+      for (int i = 0; i < attrs.length; i += 2)
+        {
+          if (attrs[i].equals(name) &&
+              attrs[i+1].equals(value))
+            return true;
+        }
+      return false;
+    }
+
+    public boolean containsAttributes(AttributeSet a)
+    {
+      Enumeration e = a.getAttributeNames();
+      while (e.hasMoreElements())
+        {
+          Object name = e.nextElement();
+          Object val = a.getAttribute(name);
+          if (!containsAttribute(name, val))
+            return false;
+        }
+      return true;			
+    }
+
+    public AttributeSet copyAttributes()
+    {
+      return (AttributeSet) clone();
+    }
+
+    public boolean equals(Object obj)
+    {
+      return 
+        (obj instanceof SmallAttributeSet)
+        && this.isEqual((AttributeSet)obj);
+    }
+ 
+    public Object getAttribute(Object key)
+    {
+      for (int i = 0; i < attrs.length; i += 2)
+        {
+          if (attrs[i].equals(key))
+            return attrs[i+1];
+        }
+            
+      Object p = getResolveParent();
+      if (p != null && p instanceof AttributeSet)
+        return (((AttributeSet)p).getAttribute(key));
+      
+      return null;
+    }
+
+    public int getAttributeCount()
+    {
+      return attrs.length / 2;
+    }
+
+    public Enumeration getAttributeNames()
+    {      
+      return new Enumeration() 
+        {
+          int i = 0;
+          public boolean hasMoreElements() 
+          { 
+            return i < attrs.length; 
+          }
+          public Object nextElement() 
+          { 
+            i += 2; 
+            return attrs[i-2]; 
+          }
+        };
+    }
+
+    public AttributeSet getResolveParent()
+    {
+      return (AttributeSet) getAttribute(ResolveAttribute);
+    }
+
+    public int hashCode()
+    {
+      return java.util.Arrays.asList(attrs).hashCode();
+    }
+
+    public boolean isDefined(Object key)
+    {
+      for (int i = 0; i < attrs.length; i += 2)
+        {
+          if (attrs[i].equals(key))
+            return true;
+        }
+      return false;
+    }
+	
+    public boolean isEqual(AttributeSet attr)
+    {
+      return attr != null 
+        && attr.containsAttributes(this)
+        && this.containsAttributes(attr);
+    }
+	
+    public String toString()
+    {
+      StringBuffer sb = new StringBuffer();
+      sb.append("[StyleContext.SmallattributeSet:");
+      for (int i = 0; i < attrs.length; ++i)
+        {
+          sb.append(" (");
+          sb.append(attrs[i].toString());
+          sb.append("=");
+          sb.append(attrs[i+1].toString());
+          sb.append(")");
+        }
+      sb.append("]");
+      return sb.toString();
+    }
+  }
+
+  // FIXME: official javadocs suggest that these might be more usefully
+  // implemented using a WeakHashMap, but not sure if that works most
+  // places or whether it really matters anyways.
+  //
+  // FIXME: also not sure if these tables ought to be static (singletons),
+  // shared across all StyleContexts. I think so, but it's not clear in
+  // docs. revert to non-shared if you think it matters.
+  
+  /**
+   * The name of the default style.
+   */
+  public static final String DEFAULT_STYLE = "default";
+  
+  /**
+   * The default style for this style context.
+   */
+  NamedStyle defaultStyle = new NamedStyle(DEFAULT_STYLE, null);
+  
+  static Hashtable sharedAttributeSets = new Hashtable();
+  static Hashtable sharedFonts = new Hashtable();
+
+  static StyleContext defaultStyleContext = new StyleContext();
+  static final int compressionThreshold = 9;
+  
+  EventListenerList listenerList;
+  Hashtable styleTable;
+  
+  /**
+   * Creates a new instance of the style context. Add the default style
+   * to the style table.
+   */
+  public StyleContext()
+  {
+    listenerList = new EventListenerList();
+    styleTable = new Hashtable();
+    styleTable.put(DEFAULT_STYLE, defaultStyle);
+  }
+
+  protected SmallAttributeSet createSmallAttributeSet(AttributeSet a)
+  {
+    return new SmallAttributeSet(a);
+  }
+  
+  protected MutableAttributeSet createLargeAttributeSet(AttributeSet a)
+  {
+    return new SimpleAttributeSet(a);
+  }
+
+  public void addChangeListener(ChangeListener listener)
+  {
+    listenerList.add(ChangeListener.class, listener);
+  }
+
+  public void removeChangeListener(ChangeListener listener)
+  {
+    listenerList.remove(ChangeListener.class, listener);
+  }
+
+  public ChangeListener[] getChangeListeners()
+  {
+    return (ChangeListener[]) listenerList.getListeners(ChangeListener.class);
+  }
+    
+  public Style addStyle(String name, Style parent)
+  {
+    Style newStyle = new NamedStyle(name, parent);
+    if (name != null)
+      styleTable.put(name, newStyle);
+    return newStyle;
+  }
+
+  public void removeStyle(String name)
+  {
+    styleTable.remove(name);
+  }
+
+  /**
+   * Get the style from the style table. If the passed name
+   * matches {@link #DEFAULT_STYLE}, returns the default style.
+   * Otherwise returns the previously defined style of
+   * <code>null</code> if the style with the given name is not defined.
+   *
+   * @param name the name of the style.
+   *
+   * @return the style with the given name or null if no such defined.
+   */
+  public Style getStyle(String name)
+  {
+    return (Style) styleTable.get(name);
+  }
+  
+  /**
+   * Get the names of the style. The returned enumeration always
+   * contains at least one member, the default style.
+   */
+  public Enumeration getStyleNames()
+  {
+    return styleTable.keys();
+  }
+
+  //
+  // StyleContexts only understand the "simple" model of fonts present in
+  // pre-java2d systems: fonts are a family name, a size (integral number
+  // of points), and a mask of style parameters (plain, bold, italic, or
+  // bold|italic). We have an inner class here called SimpleFontSpec which
+  // holds such triples.
+  //
+  // A SimpleFontSpec can be built for *any* AttributeSet because the size,
+  // family, and style keys in an AttributeSet have default values (defined
+  // over in StyleConstants).
+  //
+  // We keep a static cache mapping SimpleFontSpecs to java.awt.Fonts, so
+  // that we reuse Fonts between styles and style contexts.
+  // 
+
+  private static class SimpleFontSpec
+  {
+    String family;
+    int style;
+    int size;
+    public SimpleFontSpec(String family,
+                          int style,
+                          int size)
+    {
+      this.family = family;
+      this.style = style;
+      this.size = size;
+    }
+    public boolean equals(Object obj)
+    {
+      return (obj != null)
+        && (obj instanceof SimpleFontSpec)
+        && (((SimpleFontSpec)obj).family.equals(this.family))
+        && (((SimpleFontSpec)obj).style == this.style)
+        && (((SimpleFontSpec)obj).size == this.size);
+    }
+    public int hashCode()
+    {
+      return family.hashCode() + style + size;
+    }
+  }
+  
+  public Font getFont(AttributeSet attr)
+  {
+    String family = StyleConstants.getFontFamily(attr);
+    int style = Font.PLAIN;
+    if (StyleConstants.isBold(attr))
+      style += Font.BOLD;
+    if (StyleConstants.isItalic(attr))
+      style += Font.ITALIC;      
+    int size = StyleConstants.getFontSize(attr);
+    return getFont(family, style, size);
+  }
+
+  public Font getFont(String family, int style, int size)
+  {
+    SimpleFontSpec spec = new SimpleFontSpec(family, style, size);
+    if (sharedFonts.containsKey(spec))
+      return (Font) sharedFonts.get(spec);
+    else
+      {
+        Font tmp = new Font(family, style, size);
+        sharedFonts.put(spec, tmp);
+        return tmp;
+      }
+  }
+  
+  public FontMetrics getFontMetrics(Font f)
+  {
+    return Toolkit.getDefaultToolkit().getFontMetrics(f);
+  }
+
+  public Color getForeground(AttributeSet a)
+  {
+    return StyleConstants.getForeground(a);
+  }
+
+  public Color getBackground(AttributeSet a)
+  {
+    return StyleConstants.getBackground(a);
+  }
+
+  protected int getCompressionThreshold() 
+  {
+    return compressionThreshold;
+  }
+
+  public static StyleContext getDefaultStyleContext()
+  {
+    return defaultStyleContext;
+  }
+
+  public AttributeSet addAttribute(AttributeSet old, Object name, Object value)
+  {
+    if (old instanceof MutableAttributeSet)
+      {
+        ((MutableAttributeSet)old).addAttribute(name, value);
+        return old;
+      }
+    else 
+      {
+        MutableAttributeSet mutable = createLargeAttributeSet(old);
+        mutable.addAttribute(name, value);
+        if (mutable.getAttributeCount() >= getCompressionThreshold())
+          return mutable;
+        else
+          {
+            SmallAttributeSet small = createSmallAttributeSet(mutable);
+            if (sharedAttributeSets.containsKey(small))
+              small = (SmallAttributeSet) sharedAttributeSets.get(small);
+            else
+              sharedAttributeSets.put(small,small);
+            return small;
+          }
+      }
+  }
+
+  public AttributeSet addAttributes(AttributeSet old, AttributeSet attributes)
+  {
+    if (old instanceof MutableAttributeSet)
+      {
+        ((MutableAttributeSet)old).addAttributes(attributes);
+        return old;
+      }
+    else 
+      {
+        MutableAttributeSet mutable = createLargeAttributeSet(old);
+        mutable.addAttributes(attributes);
+        if (mutable.getAttributeCount() >= getCompressionThreshold())
+          return mutable;
+        else
+          {
+            SmallAttributeSet small = createSmallAttributeSet(mutable);
+            if (sharedAttributeSets.containsKey(small))
+              small = (SmallAttributeSet) sharedAttributeSets.get(small);
+            else
+              sharedAttributeSets.put(small,small);
+            return small;
+          }
+      }
+  }
+
+  public AttributeSet getEmptySet()
+  {
+    AttributeSet e = createSmallAttributeSet(null);
+    if (sharedAttributeSets.containsKey(e))
+      e = (AttributeSet) sharedAttributeSets.get(e);
+    else
+      sharedAttributeSets.put(e, e);
+    return e;
+  }
+
+  public void reclaim(AttributeSet attributes)
+  {
+    if (sharedAttributeSets.containsKey(attributes))
+      sharedAttributeSets.remove(attributes);
+  }
+
+  public AttributeSet removeAttribute(AttributeSet old, Object name)
+  {
+    if (old instanceof MutableAttributeSet)
+      {
+        ((MutableAttributeSet)old).removeAttribute(name);
+        if (old.getAttributeCount() < getCompressionThreshold())
+          {
+            SmallAttributeSet small = createSmallAttributeSet(old);
+            if (!sharedAttributeSets.containsKey(small))
+              sharedAttributeSets.put(small,small);
+            old = (AttributeSet) sharedAttributeSets.get(small);
+          }
+        return old;
+      }
+    else 
+      {          
+        MutableAttributeSet mutable = createLargeAttributeSet(old);
+        mutable.removeAttribute(name);
+        SmallAttributeSet small = createSmallAttributeSet(mutable);
+        if (sharedAttributeSets.containsKey(small))
+          small = (SmallAttributeSet) sharedAttributeSets.get(small);
+        else
+          sharedAttributeSets.put(small,small);
+        return small;
+      }
+  }
+
+  public AttributeSet removeAttributes(AttributeSet old, AttributeSet attributes)
+  {
+    return removeAttributes(old, attributes.getAttributeNames());
+  }
+
+  public AttributeSet removeAttributes(AttributeSet old, Enumeration names)
+  {
+    if (old instanceof MutableAttributeSet)
+      {
+        ((MutableAttributeSet)old).removeAttributes(names);
+        if (old.getAttributeCount() < getCompressionThreshold())
+          {
+            SmallAttributeSet small = createSmallAttributeSet(old);
+            if (!sharedAttributeSets.containsKey(small))
+              sharedAttributeSets.put(small,small);
+            old = (AttributeSet) sharedAttributeSets.get(small);
+          }
+        return old;
+      }
+    else 
+      {          
+        MutableAttributeSet mutable = createLargeAttributeSet(old);
+        mutable.removeAttributes(names);
+        SmallAttributeSet small = createSmallAttributeSet(mutable);
+        if (sharedAttributeSets.containsKey(small))
+          small = (SmallAttributeSet) sharedAttributeSets.get(small);
+        else
+          sharedAttributeSets.put(small,small);
+        return small;
+      }	
+  }
+
+
+  // FIXME: there's some sort of quasi-serialization stuff in here which I
+  // have left incomplete; I'm not sure I understand the intent properly.
+
+  public static Object getStaticAttribute(Object key)
+  {
+    throw new InternalError("not implemented");
+  }
+  
+  public static Object getStaticAttributeKey(Object key)
+  {
+    throw new InternalError("not implemented");
+  }
+
+  public static void readAttributeSet(ObjectInputStream in, MutableAttributeSet a)
+    throws ClassNotFoundException, IOException
+  {
+    throw new InternalError("not implemented");
+  }
+  
+  public static void writeAttributeSet(ObjectOutputStream out, AttributeSet a)
+    throws IOException
+  {
+    throw new InternalError("not implemented");
+  }
+
+  public void readAttributes(ObjectInputStream in, MutableAttributeSet a)
+    throws ClassNotFoundException, IOException 
+  {
+    throw new InternalError("not implemented");
+  }
+
+  public void writeAttributes(ObjectOutputStream out, AttributeSet a)
+    throws IOException
+  {
+    throw new InternalError("not implemented");
+  }
+}