private static void collectFields(PsiClass klass, String prefix, Map<String, String> mapping) {
    String thePrefix = prefix + klass.getName() + ".";

    for (PsiClass inner : klass.getInnerClasses()) {
      collectFields(inner, thePrefix, mapping);
    }

    for (PsiField field : klass.getFields()) {
      PsiCallExpression initializer = (PsiCallExpression)field.getInitializer();
      PsiLiteralExpression arg = (PsiLiteralExpression)initializer.getArgumentList().getExpressions()[0];

      mapping.put((String)arg.getValue(), thePrefix + field.getName());
    }
  }
private static void collectFields(PsiClass klass, String prefix, Map<String, String> mapping)