code: private void listFoundFilesMouseMoved(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_listFoundFilesMouseMoved
      final ListModel model = this.listFoundFiles.getModel();
      final int index = this.listFoundFiles.locationToIndex(evt.getPoint());
      if (index < 0) {
        this.listFoundFiles.setToolTipText(null);
      } else {
        final File file = ((NodeFileOrFolder) model.getElementAt(index)).makeFileForNode();
        this.listFoundFiles.setToolTipText(file == null ? null : file.getAbsolutePath());
      }
    }
docs: </editor-fold>//GEN-END:initComponents