although atomikos rollback, but data still exist in database

Bug Report

For English only, other languages will not accept.

Before report a bug, make sure you have:

• Searched open and closed GitHub issues.
• Read documentation: ShardingSphere Doc.

Please pay attention on issues you submitted, because we maybe need more details. If no response more than 7 days and we cannot reproduce it on current information, we will close it.

Please answer these questions before submitting your issue. Thanks!

Which version of ShardingSphere did you use?

4.0.0-RC1

Which project did you use? Sharding-JDBC or Sharding-Proxy?

Sharding-JDBC

Expected behavior

the use case as blow (ps : use atomikos)

@Transactional
    public void xaTransaction() {
        userMapper.insertUser(887, 20);
        throw new RuntimeException();
    }

the end line with throw RuntimeException, so the insert data user while be rollback

Actual behavior

although atomikos execute rollback, but data still exist in database;

Reason analyze (If you can)

Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.

Example codes for reproduce this issue (such as a github link).

https://github.com/EvanDylan/sharding-samples.git

[cherrylzhao]

you have open boot autoconfiguration，boot have discovery atomikos jar, so it instance atomikos transaction manager directory, but this is not what sharding need.

[EvanDylan]

got it, thanks again