Converting value of timestamp to expected format - groovy Soapui

Hey,

This is a piece of code which should work:

import java.text.SimpleDateFormat

// Get timestamp
def timestamp = 1526199928404
// Set a date using the timestamp
def date = new Date( timestamp )

// Create a date format as desired
SimpleDateFormat dateFormat = new SimpleDateFormat( "yyyy-MM-dd hh:mm" )
// Display your date in the defined format
log.info dateFormat.format( date )

Cheers!