[SDO Java] Pluggable SDOPackageRegistryDelegator and Tuscany-1459

[Amita Vadhavkar]

Please refer to https://issues.apache.org/jira/browse/TUSCANY-1831 and
https://issues.apache.org/jira/browse/TUSCANY-1459 and
share your thoughts about what can be done for Tuscany-1831

Regards,
Amita