title: JComboBox focus and mouse click events not working
body: <p><strong>Edit</strong><br>
  <em>Downvoter, how is this a bad question? I have provided runnable example code of the issue. If it works for you please let me know or point out what is unclear.</em></p>
  
  <p>Hello,<br>
    in the code below which has a single <code>JComboBox</code> in a <code>JFrame</code>, I am not notified when the mouse enters the <code>JComboBox</code> or is clicked or focus gained. However, the <code>PopupMenuEvent</code> works properly. </p>
  
  <p>What am I doing wrong? (My goal is to be alerted when the text component of the JComboBox is clicked)</p>
  
  <pre><code>public class TestJComboBox extends javax.swing.JFrame
  {
      public TestJComboBox()
      {
          initComponents();
      }
  
      // &lt;editor-fold defaultstate="collapsed" desc="Generated Code"&gt;
      private void initComponents() {
  
          jComboBox1 = new javax.swing.JComboBox();
  
          setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
          addMouseListener(new java.awt.event.MouseAdapter() {
              public void mouseClicked(java.awt.event.MouseEvent evt) {
                  formMouseClicked(evt);
              }
          });
  
          jComboBox1.setEditable(true);
          jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "Item 2", "Item 3", "Item 4" }));
          jComboBox1.setName("jComboBox1"); // NOI18N
          jComboBox1.addMouseListener(new java.awt.event.MouseAdapter() {
              public void mouseClicked(java.awt.event.MouseEvent evt) {
                  jComboBox1MouseClicked(evt);
              }
              public void mouseEntered(java.awt.event.MouseEvent evt) {
                  jComboBox1MouseEntered(evt);
              }
          });
          jComboBox1.addPopupMenuListener(new javax.swing.event.PopupMenuListener() {
              public void popupMenuCanceled(javax.swing.event.PopupMenuEvent evt) {
              }
              public void popupMenuWillBecomeInvisible(javax.swing.event.PopupMenuEvent evt) {
              }
              public void popupMenuWillBecomeVisible(javax.swing.event.PopupMenuEvent evt) {
                  jComboBox1PopupMenuWillBecomeVisible(evt);
              }
          });
          jComboBox1.addFocusListener(new java.awt.event.FocusAdapter() {
              public void focusGained(java.awt.event.FocusEvent evt) {
                  jComboBox1FocusGained(evt);
              }
          });
  
          javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
          getContentPane().setLayout(layout);
          layout.setHorizontalGroup(
              layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
              .addGroup(layout.createSequentialGroup()
                  .addGap(70, 70, 70)
                  .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, 226, javax.swing.GroupLayout.PREFERRED_SIZE)
                  .addContainerGap(104, Short.MAX_VALUE))
          );
          layout.setVerticalGroup(
              layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
              .addGroup(layout.createSequentialGroup()
                  .addGap(90, 90, 90)
                  .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, 46, javax.swing.GroupLayout.PREFERRED_SIZE)
                  .addContainerGap(164, Short.MAX_VALUE))
          );
  
          pack();
      }// &lt;/editor-fold&gt;
  
      private void jComboBox1FocusGained(java.awt.event.FocusEvent evt)
      {
          System.out.println("JComboBox Focus gained");
      }
  
      private void formMouseClicked(java.awt.event.MouseEvent evt)
      {
          System.out.println("Form clicked");
          jComboBox1.setFocusable(false);
          jComboBox1.setFocusable(true);
      }
  
      private void jComboBox1MouseClicked(java.awt.event.MouseEvent evt)
      {
          System.out.println("JComboBox Click");
      }
  
      private void jComboBox1PopupMenuWillBecomeVisible(javax.swing.event.PopupMenuEvent evt)
      {
          System.out.println("JComboBox Visible menu");
      }
  
      private void jComboBox1MouseEntered(java.awt.event.MouseEvent evt)
      {
          System.out.println("Entered JComboBox");
      }
  
      public static void main(String args[])
      {
          java.awt.EventQueue.invokeLater(new Runnable()
          {
              public void run()
              {
                  new TestJComboBox().setVisible(true);
              }
          });
      }
      // Variables declaration - do not modify
      private javax.swing.JComboBox jComboBox1;
      // End of variables declaration
  }
  </code></pre>
  
  <p>Thanks!</p>