Update ConnectionImpl.java

[Paultagoras]

Summary

• Wrapping build() and other calls so that we always return a SQLException

Closes

Checklist

Delete items not relevant to your PR:

• Closes #
• Unit and integration tests covering the common scenarios were added
• A human-readable description of the changes was provided to include in CHANGELOG
• For significant changes, documentation in https://github.com/ClickHouse/clickhouse-docs was updated with further explanations or tutorials

[sonarqubecloud]

Quality Gate passed

Issues
5 New issues
0 Accepted issues

Measures
0 Security Hotspots
20.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud