[GitHub] [rocketmq] ShadowySpirits commented on issue #5720: [code smell] System.currentTimeMillis() is a static method ,wrap it as a class method is inconvenient.

[GitBox <gi...@apache.org>]

ShadowySpirits commented on issue #5720:
URL: https://github.com/apache/rocketmq/issues/5720#issuecomment-1356099094

   The current implementation reserves the possibility to use a different clock source, such as using a mock clock source in testing.
   
   There is a similar usage in guava:
   
   ```java
     /**
      * Creates (but does not start) a new stopwatch, using the specified time source.
      *
      * @since 15.0
      */
     public static Stopwatch createUnstarted(Ticker ticker) {
       return new Stopwatch(ticker);
     }
   ```


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