code: private Object[] findInDynamicStore(Spec src,
                                        Spec trg,
                                        String variant) {
          String ID = TransliteratorIDParser.STVtoID(src.get(), trg.get(), variant);
          ///CLOVER:OFF
          if (DEBUG) {
              System.out.println("TransliteratorRegistry.findInDynamicStore:" +
                                 ID);
          }
          ///CLOVER:ON
          return registry.get(new CaseInsensitiveString(ID));
      }
docs: Attempt to find a source-target/variant in the dynamic registry
  store.  Return 0 on failure.