code: @SuppressWarnings({ "squid:S1166", "squid:S2221", "squid:S2629" })
      void showDropTargetHints(final UIDL configuration) {
          final int dropAreaCount = configuration.getIntAttribute(DROP_AREA_COUNT);
          for (int dropAreaIndex = 0; dropAreaIndex < dropAreaCount; dropAreaIndex++) {
              try {
                  final String dropArea = configuration.getStringAttribute(DROP_AREA + dropAreaIndex);
                  LOGGER.log(Level.FINE, "Hint Area: " + dropArea);
  
                  final Element showHintFor = Document.get().getElementById(dropArea);
                  if (showHintFor != null) {
                      showHintFor.addClassName(HINT_AREA_STYLE);
                  }
              } catch (final Exception e) {
                  // log and continue
                  LOGGER.log(Level.SEVERE, "Error highlighting drop targets: " + e.getLocalizedMessage());
              }
          }
  
      }
docs: Exception squid:S2629 - not supported by GWT