ruanwenjun opened a new issue, #1670: URL: https://github.com/apache/incubator-seatunnel/issues/1670
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/incubator-seatunnel/issues?q=is%3Aissue+label%3A%22bug%22) and found no similar issues. ### What happened We have an Ut case failed in related PR. ```java @Test public void testVariables() { System.setProperty("dt", "20190318"); System.setProperty("city2", "shanghai"); Config config = ConfigFactory .parseFile(FileUtils.getFileFromResources("seatunnel/variables.conf")) .resolveWith(ConfigFactory.systemProperties(), ConfigResolveOptions.defaults().setAllowUnresolved(true)); String sql1 = config.getConfigList("transform").get(1).getString("sql"); String sql2 = config.getConfigList("transform").get(2).getString("sql"); Assert.assertTrue(sql1.contains("shanghai")); Assert.assertTrue(sql2.contains("20190318")); ``` This is caused when we execute `ConfigFactory.systemProperties()` cannot get the property `dt`, `city2`. I find the method `ConfigFactory.systemProperties()` will return a static field `systemProperties`, this field will only be loaded when the first time we load class `SystemPropertiesHolder`. So if we load the class before we execute this UT, then the UT will failed. ### SeaTunnel Version dev ### SeaTunnel Config ```conf no ``` ### Running Command ```shell no ``` ### Error Exception ```log no ``` ### Flink or Spark Version _No response_ ### Java or Scala Version _No response_ ### Screenshots _No response_ ### Are you willing to submit PR? - [X] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
