JTextPane and the default PasteAction

Question

Now here's a really bad problem. I'm writing a custom word processor in Java (isn't everyone?). I'm using a JTextPane, with an assigned HTMLEditorKit and an assigned HTMLDocument. Code as shown below:
    this.vHtmlPane = new JTextPane();
    this.vHtmlKit = new HTMLEditorKit();
    this.vHtmlPane.setLayout(new BorderLayout());
    this.vHtmlPane.setEditorKit(this.vHtmlKit);
    this.vHtmlDoc = new HTMLDocument();
    this.vHtmlPane.setDocument(this.vHtmlDoc);
    this.vHtmlDoc.addUndoableEditListener(this.vUndoMgr);So far so good. Now, following all the documentation I could find, setting up cut and paste is as easy as the following:
    JMenu mEdit = new JMenu("Edit");
    mEdit.add(this.getActionByName(this.vHtmlKit.cutAction));
    mEdit.add(this.getActionByName(this.vHtmlKit.copyAction));
    mEdit.add(this.getActionByName(this.vHtmlKit.pasteAction));Where getActionByName() is implemented from:
  private void createActionTable(HTMLEditorKit htmlKit) {
    this.vActionMap = new HashMap();
    Action[] actions = htmlKit.getActions();
    for(int i = 0; i<actions.length; i++) {
      Action a = actions;
this.vActionMap.put(a.getValue(Action.NAME),a);
private Action getActionByName(String name) {
return (Action)(this.vActionMap.get(name));
The problem is when I go to paste something using ctrl-v (I'm developing on WinXP). I get an IllegalArgumentException followed by a whole lot of nullpointers and then everything goes to hell. My work machine just hangs, and my home machine reboots. The circumstances are like so:
ctrl-c from Textpad or Notetabpro or any true text editor - works fine.
ctrl-c from Mozilla or anything that adds anything remotely like html code to the clipboard - hell in a handbasket.
I've traced the problem through several levels of the core JDK, and it seems that all the screaming starts in the TransferHandler classes importData(JComponent comp, Transferable t) method. Something about that and the interaction with the HTMLDocument trying to handle the import of html tags. Beyond that I'm kinda stumped. I would have thought that the default behaviour for an HTMLDocument paste would be to url-encode incoming text, but it seems that it pastes it wholesale, at which point the HTMLDocument refreshes and chokes on the tags it did not generate.
I would appreciate any insight into how to override the default paste action or even better, how to fix it so the default paste action stops blowing up the app. I'd write my own default paste action without bothering the luminaries on this board, but after diving several levels into the EditorKit and finding such things as Flavor and Transferable classes and a PasteAction married to the EditorKit class... it just seemed like I must be missing the trick somehow.
The particulars:
Jdk: Sun 1.4.2_04
IDE: JBuilder X patch 3
WinXP sans the e-vile SP2 (so I'm on SP1)
Anyone have any ideas?

Answer 1

A little more background...
I traced a paste event all the way through, and I'm getting the fatal error at line 231 in HTMLEditorKit:
    public void read(Reader in, Document doc, int pos) throws IOException, BadLocationException {
     if (doc instanceof HTMLDocument) {
         HTMLDocument hdoc = (HTMLDocument) doc;
         Parser p = getParser();
         if (p == null) {
          throw new IOException("Can't load parser");
         if (pos > doc.getLength()) {
          throw new BadLocationException("Invalid location", pos);
         ParserCallback receiver = hdoc.getReader(pos);
         Boolean ignoreCharset = (Boolean)doc.getProperty("IgnoreCharsetDirective");
         p.parse(in, receiver, (ignoreCharset == null) ? false : ignoreCharset.booleanValue());
         receiver.flush();
     } else {
         super.read(in, doc, pos);
    }Line 231 is the receiver.flush() call, at which point a RuntimeException is thrown and caught at line 212 in the EventDispatchThread class pumpOneEventForHierarchy method.
C'mon guys - this has got to be a bug! I traced while pasting some text from Notepad and that went fine. Then I pasted from Mozilla, and got the above. I can't see the state of the objects in the core Java classes (can't seem to get JBuilder to show that), but that's what's happening.
I'm going to hit post on this now, and then stop runtime debugging on JBuilder and watch my computer reboot. Can anyone shed some light on this???