Problem Compiling Inner Class

Question

Can anyone tell me why the following won't compile?
Error : variable f might not have been initialized return f.getName();
     public void createNodes(File root, DefaultMutableTreeNode node)
          File [] files = root.listFiles();
          for(int counter = 0; counter < files.length; ++ counter)
               final File f = new File(files[counter].getPath())
                    public String toString()
                         return f.getName(); // Compiler error
                         //return ("ABC"); OKAY
               if(f.isDirectory())
                    DefaultMutableTreeNode dirNode = new DefaultMutableTreeNode(f.getName());
                    node.add(dirNode);
                    dirNode.setAllowsChildren(true); // HANDLE EMPTY DIRECTORIES
                    createNodes(f, dirNode);
               else
                    DefaultMutableTreeNode fileNode = new DefaultMutableTreeNode(f);
                    node.add(fileNode);
                    fileNode.setAllowsChildren(false);
     }

Answer 1

I had coded the thing like:
    for (int i = 0; i < files.length; i++) {
      final File f = new File(files[1].getPath()) {   // Yes that's a one in there
        public String toString() {
          return getName();
      System.out.println(f);
    }... Then passed into it a directory that contained a class named similar to an anonomous class name, and it just happened to be the 2nd file listed (files[1] that is) ... and therefore I got a whole bunch of that class name.class down the page instead of the entire contents of the directory ... and, oh well, threw me off ... like I said I think I need some sleep.
~Bill