BUGFIX - Remove buttonOk and buttonCancel references in ReindexDialog to prevent java.lang.NullPointerException

Author: Alex Johnson

src/main/java/com/magento/idea/magento2uct/ui/ReindexDialog.java

@@ -16,7 +16,6 @@
 import com.magento.idea.magento2uct.packages.IndexRegistry;
 import com.magento.idea.magento2uct.packages.SupportedVersion;
 import java.awt.event.KeyEvent;
-import javax.swing.JButton;
 import javax.swing.JComboBox;
 import javax.swing.JComponent;
 import javax.swing.JLabel;
@@ -32,15 +31,13 @@ public class ReindexDialog extends AbstractDialog {
     private JPanel contentPanel;
     private JComboBox<ComboBoxItemData> targetVersion;
     private JComboBox<ComboBoxItemData> targetIndex;
-    private JButton buttonOk;
-    private JButton buttonCancel;
     private JLabel targetVersionLabel;//NOPMD
     private JLabel targetIndexLabel;//NOPMD
 
     /**
      * Reindexing dialog.
      *
-     * @param project Project
+     * @param project   Project
      * @param directory PsiDirectory
      */
     public ReindexDialog(
@@ -54,9 +51,6 @@ public ReindexDialog(
 
         setTitle(ReindexVersionedIndexesAction.ACTION_NAME);
 
-        buttonOk.addActionListener(event -> onOK());
-        buttonCancel.addActionListener(event -> onCancel());
-
         // call onCancel() on ESCAPE
         contentPanel.registerKeyboardAction(
                 event -> onCancel(),
@@ -70,7 +64,7 @@ public ReindexDialog(
     /**
      * Open reindexing dialog window.
      *
-     * @param project Project
+     * @param project   Project
      * @param directory PsiDirectory
      */
     public static void open(