if (hostTree.getModel().equals(source))
if (hostTree.getModel().equals(source)) {
  public void treeNodesInserted(TreeModelEvent e) {    //    System.out.println("CSMARTConsole: treeNodesInserted");    Object source = e.getSource();    if (hostTree.getModel().equals(source))      treeNodesInsertedInHostTree(e);    else if (nodeTree.getModel().equals(source))      treeNodesInsertedInNodeTree(e);    experimentBuilder.setModified(true);  }