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  1. ,
    via stackoverflow.com by Unknown author

    Upgrade the database driver to the latest and check.

    <dependency>
        <groupId>org.postgresql</groupId>
        <artifactId>postgresql</artifactId>
        <version>9.3-1101-jdbc41</version>
    </dependency>
    

    Replace version with the latest driver version.

Solutions on the web

via openbravo by negritx
, 1 year ago
Un error de E/S ha ocurrido mientras se enviaba al backend.
via Google Groups by Adam Harding, 2 years ago
The backend has broken the connection. Possibly the action you have attempted has caused it to close.
org.postgresql.util.PSQLException: Un error de E/S ha ocurrido mientras se enviaba al backend.	at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:254)	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1163)	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:188)