code: @Override
      public void onModuleLoad() {
          ScriptInjector.fromString(GwtBootstrap3ClientBundle.INSTANCE.gwtBootstrap3().getText())
                  .setWindow(ScriptInjector.TOP_WINDOW)
                  .inject();
          if (!isjQueryLoaded()) {
              ScriptInjector.fromString(GwtBootstrap3ClientBundle.INSTANCE.jQuery().getText())
                      .setWindow(ScriptInjector.TOP_WINDOW)
                      .inject();
          }
  
          if (!isBootstrapLoaded()) {
              ScriptInjector.fromString(GwtBootstrap3ClientBundle.INSTANCE.bootstrap().getText())
                  .setWindow(ScriptInjector.TOP_WINDOW)
                  .inject();
          }
      }
docs: {@inheritDoc}