code: private void setUpComboBoxSSL() {
  
          IndexedContainer container = getSSLModeContainer("caption", true, null);
  
          m_simpleFieldEncryption.setContainerDataSource(container);
          m_simpleFieldEncryption.setItemCaptionPropertyId("caption");
          m_simpleFieldEncryption.setNullSelectionAllowed(false);
          m_simpleFieldEncryption.setNewItemsAllowed(false);
          m_simpleFieldEncryption.select(CmsSSLMode.getDefault());
  
          m_simpleFieldEncryption.addValueChangeListener(new ValueChangeListener() {
  
              private static final long serialVersionUID = 3267990233897064320L;
  
              public void valueChange(ValueChangeEvent event) {
  
                  if (m_blockChange) {
                      return;
                  }
                  handleSSLChange();
              }
          });
  
          m_fieldSecureServer.setVisible(CmsSSLMode.getDefault().equals(CmsSSLMode.SECURE_SERVER));
          m_fieldExclusiveError.setVisible(CmsSSLMode.getDefault().equals(CmsSSLMode.SECURE_SERVER));
          m_fieldExclusiveURL.setVisible(CmsSSLMode.getDefault().equals(CmsSSLMode.SECURE_SERVER));
  
      }
docs: Sets up the ComboBox for the SSL Mode.<p>