EmbedXAConnection40 and EmbedPoolableConnection40
EmbedPoolableconnection40 extends from EmbedConnection. It has stub implementation of the jdbc4.0 methods of PoolableConnection.
EmbedXAConnection40 extends from EmbedPoolableConnection40. All the methods in EmbedXAConnection is copied to this class too.
Changed this to use EmbedPoolableConnection so that EmbedXAConnection40 can be passed this.
Right now the EmbedXAConnection40 EmbedPoolableConnection40 are unused (there is no class which uses these) and there there is no way
to get these from user application.
4.0 DataSource implementation which will be provided as part of jira 1137 will be used to instantiate these classes.