feat(java-client): Introduce retry mechanism into Java client

[Samunroyu]

What problem does this PR solve?

Introduce retry mechanism into the Java client enhances user convenience and robustness.

The default retry policy will retry Integer.MAX_VALUE times, and default retry delay time is 20 ms. The exponentialBackoff retry policy will set by user self.

Tests

• Unit test, for DefaultRetryPolicy and ExponentialBackoffRetryPolicy

Code changes

• Has exported class clientoption.java: add retry parameter in clientoption
• Add class retryPolicy: an interface for retry mechanism.
• Add class DefaultRetryPolicy.java: implement default retry policy
• Add class ExponentialBackoffRetryPolicy.java: allows use-defined retry mechanism .

[acelyc111]

Some suggestions to improve the commit message: https://cbea.ms/git-commit/ https://www.freecodecamp.org/news/how-to-write-better-git-commit-messages/

[Apache9]

I tried rerun the failed job but it still failed...

[Samunroyu]

I tried rerun the failed job but it still failed...

the failed job is failed at start pegasus cluster. not java client unit test. Rerun one more time the job successful.