Name: vi73552 Date: 03/23/99


I used a frame set with several frames but I didn't gave all of them a name. I used a JEditorPane to display the frames and so far all worked fine. But when I tried to update a frame as reaction of a link click in another frame a null pointer exception was launched. This happend in: javax/swing/text/HTMLDocument.java

//@(#)HTMLDocument.java 1.97 98/09/04

private Element findFrame(String frameName) {
  ElementIterator it = new ElementIterator(this);
  Element next = null;
  while ((next = it.next()) != null) {
    AttributeSet attr = next.getAttributes();
    if (matchNameAttribute(attr, HTML.Tag.FRAME)) {
//*******************************************************
      String frameTarget = (String)attr.getAttribute
                        (HTML.Attribute.NAME);
//*******************************************************
      if (frameTarget.equals(frameName)) {
          break;
      }
    }
  }
  return next;
}

Because not all frames had names the marked line returned null and the following line tried: null.equals(...
(Review ID: 55951)
======================================================================