code: private JScrollPane getJScrollPane() {
          if (jScrollPane == null) {
              jScrollPane = new JScrollPane();
              jScrollPane.setViewportView(getTableTest());
              jScrollPane.setBorder(javax.swing.BorderFactory.createEtchedBorder(javax.swing.border.EtchedBorder.RAISED));
          }
  
          return jScrollPane;
      }
docs: This method initializes jScrollPane
  
  @return javax.swing.JScrollPane