data base

I have an error in Groovy sql.executeQuery():GRAVE: Message: Operation not allowed after ResultSet closed

Hi all

I am a newbie at Bonita 7.2, struggling with displaying values, retrieved from a My SQL DB, in a custom table Widget. I need a little help, please.
I'm executin a groovy script, from Bonita 7.2 and I get an error saying: GRAVE: Message: Operation not allowed after ResultSet closed . I don't understand it because I don't have closed the resultSet.

This is my GroovyScript:

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