Serializable transactions and SQLException

Dears,

I would like to develop java code using the pgsql-jdbc driver on serializable 
isolated transactions. The (general) pgsql manual states that this, of 
course, may cause concurrent updating transaction failures to inform the 
client to retry the transaction as a whole.

This is said to be reported by the error message:

	ERROR:  Can't serialize access due to concurrent update


Great. I want to cope with it. But what's the SQLException.getSQLState() value 
associated to this? Or is it a SQLException.getErrorCode()? Is this value 
something 'standard', in the sense that, ie., if I need to switch to Oracle 
it works fine? Is there a better way to identify 'please, retry' suggestions 
than browsing the SQLException object?

It is possible I didn't search enough, but it is a matter of fact that I 
didn't find any information about it. Please spare a word about it.

Regards,

	Giampaolo Tomassoni