'Add the stock journal related to product to the result of super()
@return: dictionary which contains all needed information regarding stock accounts and journal and super (income+expense accounts)'

@api.multi
def get_product_accounts(self, fiscal_pos=None):

    accounts = super(ProductTemplate, self).get_product_accounts(fiscal_pos=fiscal_pos)
    accounts.update({'stock_journal': (self.categ_id.property_stock_journal or False)})
    return accounts
