title: I have a JFrame GUI (using the GUI builder) with a List [JList] from the swing controls but can't call setListData(Object[]) without an error
body: <p>Everything works perfectly fine when I am running the program within netbeans.
  However, when I try to build the project to create a Jar file of it, every single line that has setListData(Object[]) called results in the following error:</p>
  
  <pre>
  warning: [unchecked] unchecked call to setListData(E[]) as a member of the raw
    type JList jList1.setListData(people.allStudentsAttendance());
    where E is a type-variable: E extends Object declared in class JList
  </pre>
  
  <p>I have purposely unchecked the -Xlint because I was getting error of:</p>
  
  <pre>
  Note: L:\Attendance\src\Attendance\AttendGUI.java uses or overrides a deprecated API.
  Note: Recompile with -Xlint:deprecation for details.
  Note: L:\Attendance\src\Attendance\AttendGUI.java uses unchecked or unsafe operations.
  Note: Recompile with -Xlint:unchecked for details.
  </pre>
  
  <p>before I unchecked it and began trying to debug the error. The Jar file does not work and I have not been able to figure out how to fix this problem after a couple days of searching. Thank you in advance</p>
  
  <p>Here is my code for the GUI~~</p>
  
  <p>~~~~~~~~~~~~~~~~~~~~~~~~</p>
  
  <pre><code>package Attendance;
  
  
  public class AttendGUI extends javax.swing.JFrame {
  
  private Model people = new Model();
  
  private int toggleChecker = 0;
  
      /** Creates new form AttendGUI */
      public AttendGUI() {
          initComponents();
      }
  
      /** This method is called from within the constructor to
       * initialize the form.
       * WARNING: Do NOT modify this code. The content of this method is
       * always regenerated by the Form Editor.
       */
  
      @SuppressWarnings("unchecked")
      // &lt;editor-fold defaultstate="collapsed" desc="Generated Code"&gt;
      private void initComponents() {
  
          jButton1 = new javax.swing.JButton();
          jTextField1 = new javax.swing.JTextField();
          jButton2 = new javax.swing.JButton();
          jButton3 = new javax.swing.JButton();
          jTextField2 = new javax.swing.JTextField();
          jButton4 = new javax.swing.JButton();
          jButton5 = new javax.swing.JButton();
          jButton7 = new javax.swing.JButton();
          jScrollPane1 = new javax.swing.JScrollPane();
          jList1 = new javax.swing.JList();
          jLabel1 = new javax.swing.JLabel();
          jPasswordField1 = new javax.swing.JPasswordField();
          jScrollPane2 = new javax.swing.JScrollPane();
          jList2 = new javax.swing.JList();
          jButton6 = new javax.swing.JButton();
          jToggleButton1 = new javax.swing.JToggleButton();
          jCheckBox1 = new javax.swing.JCheckBox();
          jButton8 = new javax.swing.JButton();
          jTextField3 = new javax.swing.JTextField();
          jLabel2 = new javax.swing.JLabel();
  
          setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
  
          jButton1.setText("Add Student");
          jButton1.addActionListener(new java.awt.event.ActionListener() {
              public void actionPerformed(java.awt.event.ActionEvent evt) {
                  jButton1ActionPerformed(evt);
              }
          });
  
          jTextField1.setHorizontalAlignment(javax.swing.JTextField.CENTER);
          jTextField1.setText("Enter Full Name");
          jTextField1.addFocusListener(new java.awt.event.FocusAdapter() {
              public void focusGained(java.awt.event.FocusEvent evt) {
                  jTextField1FocusGained(evt);
              }
          });
  
          jButton2.setText("Remove Student");
          jButton2.addActionListener(new java.awt.event.ActionListener() {
              public void actionPerformed(java.awt.event.ActionEvent evt) {
                  jButton2ActionPerformed(evt);
              }
          });
  
          jButton3.setText("Sign In");
          jButton3.addActionListener(new java.awt.event.ActionListener() {
              public void actionPerformed(java.awt.event.ActionEvent evt) {
                  jButton3ActionPerformed(evt);
              }
          });
  
          jTextField2.setHorizontalAlignment(javax.swing.JTextField.CENTER);
          jTextField2.setText(people.getDate());
  
          jButton4.setText("Remove Time");
          jButton4.addActionListener(new java.awt.event.ActionListener() {
              public void actionPerformed(java.awt.event.ActionEvent evt) {
                  jButton4ActionPerformed(evt);
              }
          });
  
          jButton5.setText("Display All Students");
          jButton5.addActionListener(new java.awt.event.ActionListener() {
              public void actionPerformed(java.awt.event.ActionEvent evt) {
                  jButton5ActionPerformed(evt);
              }
          });
  
          jButton7.setText("Display Attendence of:");
          jButton7.addActionListener(new java.awt.event.ActionListener() {
              public void actionPerformed(java.awt.event.ActionEvent evt) {
                  jButton7ActionPerformed(evt);
              }
          });
  
          jScrollPane1.setViewportView(jList1);
  
          jLabel1.setForeground(new java.awt.Color(51, 51, 255));
          jLabel1.setText("A password is required to remove information:");
  
          jList2.setBorder(javax.swing.BorderFactory.createTitledBorder("Currently Selected"));
          jList2.setModel(new javax.swing.AbstractListModel() {
              String[] strings = { "none" };
              public int getSize() { return strings.length; }
              public Object getElementAt(int i) { return strings[i]; }
          });
          jScrollPane2.setViewportView(jList2);
  
          jButton6.setText("Display Tech Work of:");
          jButton6.addActionListener(new java.awt.event.ActionListener() {
              public void actionPerformed(java.awt.event.ActionEvent evt) {
                  jButton6ActionPerformed(evt);
              }
          });
  
          jToggleButton1.setText("Adding Drama Club Attendance");
          jToggleButton1.addActionListener(new java.awt.event.ActionListener() {
              public void actionPerformed(java.awt.event.ActionEvent evt) {
                  jToggleButton1ActionPerformed(evt);
              }
          });
  
          jCheckBox1.setText("Add Different Date");
  
          jButton8.setText("Select Student:");
          jButton8.addActionListener(new java.awt.event.ActionListener() {
              public void actionPerformed(java.awt.event.ActionEvent evt) {
                  jButton8ActionPerformed(evt);
              }
          });
  
          jTextField3.setHorizontalAlignment(javax.swing.JTextField.CENTER);
          jTextField3.setText("Enter Full Name");
          jTextField3.addFocusListener(new java.awt.event.FocusAdapter() {
              public void focusGained(java.awt.event.FocusEvent evt) {
                  jTextField3FocusGained(evt);
              }
          });
  
          jLabel2.setFont(new java.awt.Font("Tahoma", 1, 12));
          jLabel2.setForeground(new java.awt.Color(51, 51, 255));
          jLabel2.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
          jLabel2.setText("Select Yourself Here");
  
          javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
          getContentPane().setLayout(layout);
          layout.setHorizontalGroup(
              layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
              .addGroup(layout.createSequentialGroup()
                  .addContainerGap()
                  .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                      .addGroup(layout.createSequentialGroup()
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                              .addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 111, Short.MAX_VALUE)
                              .addComponent(jButton2, javax.swing.GroupLayout.DEFAULT_SIZE, 183, Short.MAX_VALUE)
                              .addComponent(jButton1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                          .addGap(11, 11, 11)
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                              .addComponent(jButton3, javax.swing.GroupLayout.DEFAULT_SIZE, 167, Short.MAX_VALUE)
                              .addComponent(jTextField2, javax.swing.GroupLayout.DEFAULT_SIZE, 167, Short.MAX_VALUE)
                              .addComponent(jButton4, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 167, Short.MAX_VALUE)))
                      .addComponent(jButton5, javax.swing.GroupLayout.DEFAULT_SIZE, 361, Short.MAX_VALUE)
                      .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                              .addComponent(jToggleButton1, javax.swing.GroupLayout.DEFAULT_SIZE, 226, Short.MAX_VALUE)
                              .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 226, Short.MAX_VALUE))
                          .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                              .addComponent(jCheckBox1)
                              .addComponent(jPasswordField1, javax.swing.GroupLayout.PREFERRED_SIZE, 129, javax.swing.GroupLayout.PREFERRED_SIZE)))
                      .addGroup(layout.createSequentialGroup()
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                              .addComponent(jButton8, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 166, javax.swing.GroupLayout.PREFERRED_SIZE)
                              .addComponent(jButton7, javax.swing.GroupLayout.DEFAULT_SIZE, 177, Short.MAX_VALUE)
                              .addComponent(jButton6, javax.swing.GroupLayout.DEFAULT_SIZE, 177, Short.MAX_VALUE))
                          .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                              .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 158, javax.swing.GroupLayout.PREFERRED_SIZE)
                              .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 174, javax.swing.GroupLayout.PREFERRED_SIZE)))
                      .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                          .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 146, javax.swing.GroupLayout.PREFERRED_SIZE)
                          .addGap(110, 110, 110)))
                  .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                  .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 233, javax.swing.GroupLayout.PREFERRED_SIZE)
                  .addContainerGap())
          );
          layout.setVerticalGroup(
              layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
              .addGroup(layout.createSequentialGroup()
                  .addContainerGap()
                  .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                      .addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.LEADING)
                      .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                              .addComponent(jButton1)
                              .addComponent(jButton3))
                          .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                              .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                              .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                          .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                              .addComponent(jButton2)
                              .addComponent(jButton4))
                          .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                              .addComponent(jToggleButton1)
                              .addComponent(jCheckBox1))
                          .addGap(6, 6, 6)
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                              .addComponent(jLabel1)
                              .addComponent(jPasswordField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                          .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                          .addComponent(jButton5, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
                          .addGap(4, 4, 4)
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                              .addComponent(jButton8, javax.swing.GroupLayout.PREFERRED_SIZE, 28, javax.swing.GroupLayout.PREFERRED_SIZE)
                              .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                          .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                          .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 12, javax.swing.GroupLayout.PREFERRED_SIZE)
                          .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                              .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE)
                              .addGroup(layout.createSequentialGroup()
                                  .addComponent(jButton7, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE)
                                  .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                  .addComponent(jButton6, javax.swing.GroupLayout.PREFERRED_SIZE, 36, javax.swing.GroupLayout.PREFERRED_SIZE)))))
                  .addContainerGap(15, Short.MAX_VALUE))
          );
  
          pack();
      }// &lt;/editor-fold&gt;
  
  private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
  
      people.addStudent(jTextField1.getText());
      jList1.setListData(people.allStudentsAttendance());
      String[] sel = {people.getSelected()};
      jList2.setListData(sel);
  }                                        
  
  private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
  
      if (true){
          people.removeStudent(jTextField1.getText());
          jList1.setListData(people.allStudentsAttendance());
          String[] sel = {"none"};
          jList2.setListData(sel);
      }
  }                                        
  
  private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {                                         
  
      String time;
      if (toggleChecker % 2 == 1){
          time = people.getDateTime();
          if (jCheckBox1.isSelected()){
              people.checkIn(jTextField2.getText());
          } else {
              people.checkIn(time);
          }
      } else {
          time = people.getDate();
          if (jCheckBox1.isSelected()){
              people.addAttend(jTextField2.getText());
          } else {
              people.addAttend(time);
          }
      }
      jTextField2.setText(time);
      if (toggleChecker % 2 == 1){
          jList1.setListData(people.viewTechHours());
      } else {
          jList1.setListData(people.viewAttendance());
      }
  }                                        
  
  private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {                                         
  
      if (jPasswordField1.getText().equals("hello")){
          if (toggleChecker % 2 == 1){
              people.removeHours(jTextField2.getText());
          } else {
              people.removeAttend(jTextField2.getText());
          }
          jList1.setListData(people.viewAttendance());
      }
  }                                        
  
  private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {                                         
  
      jList1.setListData(people.allStudentsAttendance());
  }                                        
  
  private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {                                         
  
      jList1.setListData(people.viewAttendance());
  }                                        
  
  private void jTextField1FocusGained(java.awt.event.FocusEvent evt) {                                        
  
      jTextField1.setText("");
  }                                       
  
  private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {                                         
  
      jList1.setListData(people.viewTechHours());
  }                                        
  
  private void jToggleButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                               
  
      toggleChecker++;
      if (toggleChecker % 2 == 1){
          jToggleButton1.setText("Adding Tech Hours");
          jTextField2.setText(people.getDateTime());
          jButton3.setText("Check In");
      } else{
          jToggleButton1.setText("Adding Drama Club Attendance");
          jTextField2.setText(people.getDate());
          jButton3.setText("Sign In");
          toggleChecker = 0;
      }
  }                                              
  
  private void jTextField3FocusGained(java.awt.event.FocusEvent evt) {                                        
  
      jTextField3.setText("");
  }                                       
  
  private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {                                         
  
      people.selectStudent(jTextField3.getText());
      jList1.setListData(people.viewAttendance());
      String[] sel = {people.getSelected()};
      jList2.setListData(sel);
  }                                        
  
      /**
       * @param args the command line arguments
       */
      public static void main(String args[]) {
          /* Set the Nimbus look and feel */
          //&lt;editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) "&gt;
          /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
           * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
           */
          try {
              for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                  if ("Nimbus".equals(info.getName())) {
                      javax.swing.UIManager.setLookAndFeel(info.getClassName());
                      break;
                  }
              }
          } catch (ClassNotFoundException ex) {
              java.util.logging.Logger.getLogger(AttendGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
          } catch (InstantiationException ex) {
              java.util.logging.Logger.getLogger(AttendGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
          } catch (IllegalAccessException ex) {
              java.util.logging.Logger.getLogger(AttendGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
          } catch (javax.swing.UnsupportedLookAndFeelException ex) {
              java.util.logging.Logger.getLogger(AttendGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
          }
          //&lt;/editor-fold&gt;
  
          /* Create and display the form */
          java.awt.EventQueue.invokeLater(new Runnable() {
  
              @Override
              public void run() {
                  new AttendGUI().setVisible(true);
              }
          });
      }
      // Variables declaration - do not modify
      private javax.swing.JButton jButton1;
      private javax.swing.JButton jButton2;
      private javax.swing.JButton jButton3;
      private javax.swing.JButton jButton4;
      private javax.swing.JButton jButton5;
      private javax.swing.JButton jButton6;
      private javax.swing.JButton jButton7;
      private javax.swing.JButton jButton8;
      private javax.swing.JCheckBox jCheckBox1;
      private javax.swing.JLabel jLabel1;
      private javax.swing.JLabel jLabel2;
      private javax.swing.JList jList1;
      private javax.swing.JList jList2;
      private javax.swing.JPasswordField jPasswordField1;
      private javax.swing.JScrollPane jScrollPane1;
      private javax.swing.JScrollPane jScrollPane2;
      private javax.swing.JTextField jTextField1;
      private javax.swing.JTextField jTextField2;
      private javax.swing.JTextField jTextField3;
      private javax.swing.JToggleButton jToggleButton1;
      // End of variables declaration
  }
  </code></pre>