code: private <T extends JTextComponent> T installSearchable(T textComponent) {
  
          SearchableUtils.installSearchable(textComponent);
  
          return textComponent;
      }
docs: Installs a <code>Searchable</code> into the given text component.
  
  @param <T>
  the type of the text component.
  
  @param textComponent
  the target text component.
  @return the text component.