Hi, I am writting a pos software: below the jrxml to generate the receipt, when I compile and run its prints fine on a mac book amd on a window pc the result query is empty as in the attached image. Any Ideas on what is the problem? <?xml version="1.0" encoding="UTF-8"?><jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="Bill Receipt" pageWidth="164" pageHeight="623" columnWidth="124" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="a98f55bb-9691-4a3a-a461-f05b15972097"> <property name="ireport.zoom" value="3.0"/> <property name="ireport.x" value="0"/> <property name="ireport.y" value="0"/> <parameter name="sales_id" class="java.lang.Integer"> <defaultValueExpression><![CDATA[]]></defaultValueExpression> </parameter> <parameter name="pay" class="java.lang.Double"/> <parameter name="balance" class="java.lang.Double"/> <parameter name="teller" class="java.lang.String"/> <parameter name="logo_path" class="Object" isForPrompting="false"> <parameterDescription><![CDATA[The logo]]></parameterDescription> <defaultValueExpression><![CDATA[]]></defaultValueExpression> </parameter> <queryString> <![CDATA[sELECT items.qty , items.unit_price, items.line_total, products.name, CONCAT (users.name,' ', users.surname) as user, sales.id as sales_id , sales.total_amount FROM sales,items,users, products WHERE sales.user_id = users.idAnd items.sales_id = sales.idAND items.product_id = products.idAND sales.id = $P{sales_id}]]> </queryString> <field name="qty" class="java.lang.Integer"> <fieldDescription><![CDATA[]]></fieldDescription> </field> <field name="unit_price" class="java.lang.Double"> <fieldDescription><![CDATA[]]></fieldDescription> </field> <field name="line_total" class="java.lang.Double"> <fieldDescription><![CDATA[]]></fieldDescription> </field> <field name="name" class="java.lang.String"> <fieldDescription><![CDATA[]]></fieldDescription> </field> <field name="user" class="java.lang.String"/> <field name="sales_id" class="java.lang.Integer"/> <field name="total_amount" class="java.lang.Double"> <fieldDescription><![CDATA[]]></fieldDescription> </field> <variable name="line_total_1" class="java.lang.Double" resetType="Group" resetGroup="Sales" calculation="Sum"> <variableExpression><![CDATA[$F{line_total}]]></variableExpression> </variable> <group name="Sales"> <groupExpression><![CDATA[$F{sales_id}]]></groupExpression> <groupFooter> <band height="89"> <staticText> <reportElement x="39" y="9" width="30" height="10" uuid="d55c3805-b8f2-4602-bf49-f58558a483b5"/> <textElement textAlignment="Left" verticalAlignment="Middle"> <font size="8"/> </textElement> <text><![CDATA[Total]]></text> </staticText> <staticText> <reportElement x="39" y="22" width="30" height="10" uuid="92f660b2-2dcc-4dce-b46e-a76442e4c3e9"/> <textElement textAlignment="Left" verticalAlignment="Middle"> <font size="8"/> </textElement> <text><![CDATA[Pay]]></text> </staticText> <staticText> <reportElement x="39" y="34" width="30" height="10" uuid="312427e0-9f41-41bb-ab63-0b94fa36432e"/> <textElement textAlignment="Left" verticalAlignment="Middle"> <font size="8"/> </textElement> <text><![CDATA[balance]]></text> </staticText> <line> <reportElement x="0" y="65" width="124" height="1" uuid="1a8c74f8-07ed-4e29-aea3-ed37b392d847"/> <graphicElement> <pen lineWidth="0.5" lineStyle="Dashed"/> </graphicElement> </line> <staticText> <reportElement x="4" y="65" width="120" height="20" uuid="9eb000c4-7254-4175-8454-83246297ff68"/> <textElement textAlignment="Center" verticalAlignment="Middle"> <font size="8"/> </textElement> <text><![CDATA[ Thank you for your support ]]></text> </staticText> <line> <reportElement x="0" y="85" width="124" height="1" uuid="440339aa-20b2-4de4-8b55-f9e53d9124a3"/> <graphicElement> <pen lineWidth="0.5" lineStyle="Dashed"/> </graphicElement> </line> <textField> <reportElement x="69" y="22" width="54" height="10" uuid="791994a5-f960-4c47-9bc3-0fb31953ef6b"/> <textElement textAlignment="Right" verticalAlignment="Middle"> <font size="8"/> </textElement> <textFieldExpression><![CDATA[$P{pay}]]></textFieldExpression> </textField> <textField> <reportElement x="69" y="34" width="54" height="10" uuid="89dfab20-0441-49ca-aa32-82bb1503543d"/> <textElement textAlignment="Right" verticalAlignment="Middle"> <font size="8"/> </textElement> <textFieldExpression><![CDATA[$P{balance}]]></textFieldExpression> </textField> <staticText> <reportElement x="39" y="46" width="30" height="10" uuid="419f9e7c-37f8-448b-a268-92ac93777b28"/> <textElement textAlignment="Left" verticalAlignment="Middle"> <font size="8"/> </textElement> <text><![CDATA[Teller]]></text> </staticText> <textField> <reportElement x="69" y="46" width="55" height="10" uuid="db45299b-bc79-4c8f-9794-8262a2f0d3bd"/> <textElement textAlignment="Left" verticalAlignment="Middle"> <font size="8"/> </textElement> <textFieldExpression><![CDATA[$P{teller}]]></textFieldExpression> </textField> <textField> <reportElement x="69" y="9" width="54" height="10" uuid="d8d0c44c-4526-4f79-a12b-391ea264263c"/> <textElement textAlignment="Right"> <font size="8"/> </textElement> <textFieldExpression><![CDATA[$V{line_total_1}]]></textFieldExpression> </textField> </band> </groupFooter> </group> <background> <band splitType="Stretch"/> </background> <title> <band height="39" splitType="Stretch"> <image isUsingCache="true" isLazy="true"> <reportElement x="39" y="0" width="46" height="34" uuid="da9e171d-fbb5-469d-a59d-802662be7a29"/> <imageExpression><![CDATA[$P{logo_path}]]></imageExpression> </image> <line> <reportElement x="0" y="38" width="124" height="1" uuid="11d0405a-9ef2-4c7c-9d79-cdf154a9e261"/> <graphicElement> <pen lineWidth="0.5" lineStyle="Dashed"/> </graphicElement> </line> </band> </title> <pageHeader> <band height="18" splitType="Stretch"> <staticText> <reportElement x="3" y="3" width="121" height="11" uuid="7a73f0bb-4881-4217-befe-7dcfa35034d0"/> <textElement textAlignment="Center" verticalAlignment="Middle"> <font size="8"/> </textElement> <text><![CDATA[bMPOS System 1.0 ]]></text> </staticText> <line> <reportElement x="0" y="17" width="124" height="1" uuid="feca8879-3f8f-4589-97af-12ef8046192d"/> <graphicElement> <pen lineWidth="0.5" lineStyle="Dashed"/> </graphicElement> </line> </band> </pageHeader> <columnHeader> <band height="15" splitType="Stretch"> <staticText> <reportElement x="3" y="3" width="36" height="10" uuid="698b90b1-6446-4d72-aae8-a9f1ee6efa63"/> <textElement textAlignment="Left" verticalAlignment="Middle"> <font size="8" isBold="true"/> </textElement> <text><![CDATA[Name]]></text> </staticText> <staticText> <reportElement x="39" y="3" width="30" height="10" uuid="6f6664a7-5868-4eb5-886a-1b1a841a1646"/> <textElement textAlignment="Center" verticalAlignment="Middle"> <font size="8" isBold="true"/> </textElement> <text><![CDATA[Qty]]></text> </staticText> <staticText> <reportElement x="69" y="3" width="25" height="10" uuid="09ed3919-364c-4114-b080-ca181b609416"/> <textElement textAlignment="Left" verticalAlignment="Middle"> <font size="8" isBold="true"/> </textElement> <text><![CDATA[Price]]></text> </staticText> <staticText> <reportElement x="94" y="3" width="30" height="10" uuid="5aeab3d8-c73c-4428-a6be-723c73df249a"/> <textElement verticalAlignment="Middle"> <font size="8" isBold="true"/> </textElement> <text><![CDATA[Total]]></text> </staticText> </band> </columnHeader> <detail> <band height="15" splitType="Stretch"> <textField> <reportElement stretchType="RelativeToTallestObject" x="3" y="3" width="36" height="10" uuid="8ba7abdf-d53b-4e24-b4e1-03be8dfbe8d6"/> <textElement verticalAlignment="Middle"> <font size="8"/> </textElement> <textFieldExpression><![CDATA[$F{name}]]></textFieldExpression> </textField> <textField> <reportElement x="39" y="3" width="30" height="10" uuid="2bcc8594-7f46-4d4e-a8c6-cc14301ea57d"/> <textElement textAlignment="Center" verticalAlignment="Middle"> <font size="8"/> </textElement> <textFieldExpression><![CDATA[$F{qty}]]></textFieldExpression> </textField> <textField> <reportElement x="69" y="3" width="25" height="10" uuid="cde48031-22cc-43fb-8555-cc546ab160e5"/> <textElement verticalAlignment="Middle"> <font size="8"/> </textElement> <textFieldExpression><![CDATA[$F{unit_price}]]></textFieldExpression> </textField> <textField> <reportElement x="94" y="3" width="30" height="10" uuid="c9fa534c-ef51-4f42-8f08-786a8fec08db"/> <textElement verticalAlignment="Middle"> <font size="8"/> </textElement> <textFieldExpression><![CDATA[$F{line_total}]]></textFieldExpression> </textField> <line> <reportElement x="0" y="14" width="124" height="1" uuid="00566ede-6630-476f-bde8-df0970d7abef"/> <graphicElement> <pen lineWidth="0.25" lineStyle="Dashed"/> </graphicElement> </line> </band> </detail> <columnFooter> <band splitType="Stretch"/> </columnFooter> <pageFooter> <band height="67" splitType="Stretch"/> </pageFooter> <summary> <band height="42" splitType="Stretch"/> </summary></jasperReport>