{
String json = objectMapper.writeValueAsString(SYSTEM_AS_MAP);
ConnectorTableHandle tableHandle = objectMapper.readValue(json, ConnectorTableHandle.class);
assertEquals(tableHandle.getClass(), SystemTableHandle.class);
SystemTableHandle systemHandle = (SystemTableHandle) tableHandle;
assertEquals(systemHandle.getSchemaTableName(), new SchemaTableName("system_schema", "system_table"));
}