code: public Schema loadSchema(String schema) {
      try {
        JSONObject rawSchema = new JSONObject(new JSONTokener(schema));
        return SchemaLoader.load(rawSchema);
      } catch (JSONException | SchemaException e) {
        throw new InvalidJsonSchemaException(e);
      }
    }
docs: Loads JSON schema. The schema may contain remote references.
  
  @param schema String containing the JSON schema to load
  @return loaded {@link Schema}
  @throws InvalidJsonSchemaException if the schema fails to load