Problems with batch using jdbc on postgresql 7.4.2

Hi, somebody can help me?

I using a batch sentence to update some data in distinct tables, one of that tables have a foreing key, then when I execute the batch using jdbc on postgresql 7.4.2 abort the batch and send me the next message:

ERROR: SPI_connect failed
DEBUG: AbortCurrentTransaction
LOG: statement: rollback; begin;

the exactly sentence is a insert into table (,,,) values (,,,), the message was send just after execute the insert. If I removed the foreing key from the table , the batch worked correctly, but can´t drop the foreing key because I don´t want lost the integrity of data

I hope somebody have a solution.

Thanks and sorry by my grammatical style.

many