pelolo

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                        <property name="com.jaspersoft.studio.unit.x" value="pixel"/>
                        <property name="com.jaspersoft.studio.unit.y" value="pixel"/>
                        <property name="com.jaspersoft.studio.unit.width" value="pixel"/>
                        <property name="com.jaspersoft.studio.unit.height" value="pixel"/>
                    </reportElement>
                    <jr:QRCode xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
                        <jr:codeExpression><![CDATA[$P{invoice_no}]]></jr:codeExpression>
                    </jr:QRCode>
                </componentElement>