// label expression
JLabel lblExpression = new JLabel();
lblExpression.setText("Expression :");
// champ expression
DefaultMutableListModel mutableExpression = new DefaultMutableListModel();
mutableExpression.setSize(5);
// mutableExpression.addElement("Expression");
this.jListExpression = new JListMutable(mutableExpression);
// this.jListExpression.setValueAt(new String[]{"Expression"},0);