@Override
      public void registerImports(String className, Collection<String> classImports, Collection<String> staticImports) {
        final String key = className.replace('.', '/');
        if (!classImports.isEmpty() || !staticImports.isEmpty()) {
          myImportRefs.put(key, Pair.create(classImports, staticImports));
        }
        else {
          myImportRefs.remove(key);
        }
      }
@Override
      public void registerImports(String className, Collection<String> classImports, Collection<String> staticImports)