elements in band don't stretch correctly in jasper reports

Question

column2 and column3 don't stretch as column1 though if column 2 and 3 are higher than column1, column 1 will stretch right to their height

that's the code of my jasper report which i use as subreport

<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="subReport" pageWidth="555" pageHeight="802" columnWidth="535" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0" uuid="12345678-1234-1234-1234-123456789012">

    <style name="Default" isDefault="true" mode="Transparent" fontName="Arial" pdfFontName="Arial" pdfEncoding="Identity-H"/>
    <subDataset name="dataset1">
        <queryString>
            <![CDATA[]]>
        </queryString>
        <field name="name" class="java.lang.String">
            <fieldDescription><![CDATA[name]]></fieldDescription>
        </field>
        <field name="state" class="java.lang.String">
            <fieldDescription><![CDATA[state]]></fieldDescription>
        </field>
    </subDataset>
    <parameter name="pln" class="java.lang.String" isForPrompting="false"/>
    <field name="name" class="java.lang.String">
        <fieldDescription><![CDATA[name]]></fieldDescription>
    </field>
    <field name="orw" class="java.util.List"/>
    <columnHeader>
        <band height="20" isSplitAllowed="true" splitType="Stretch">
            <printWhenExpression><![CDATA[$V{PAGE_NUMBER}==1]]></printWhenExpression>
            <textField isStretchWithOverflow="true">
                <reportElement x="50" y="0" width="150" height="20" stretchType="RelativeToBandHeight"/>
                <box >
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center" verticalAlignment="Middle">
                    <font isBold="true" isItalic="true" isUnderline="false"/>
                </textElement>
                <textFieldExpression><![CDATA["col1"]]></textFieldExpression>
            </textField>
            <textField isStretchWithOverflow="true">
                <reportElement x="200" y="0" width="150" height="20" stretchType="RelativeToBandHeight"/>
                <box>
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center" verticalAlignment="Middle">
                    <font isBold="true" isItalic="true" isUnderline="false"/>
                </textElement>
                <textFieldExpression><![CDATA["col2"]]></textFieldExpression>
            </textField>
            <textField isStretchWithOverflow="true">
                <reportElement x="350" y="0" width="150" height="20" stretchType="RelativeToBandHeight"/>
                <box>
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center" verticalAlignment="Middle">
                    <font isBold="true" isItalic="true" isUnderline="false"/>
                </textElement>
                <textFieldExpression><![CDATA["col3"]]></textFieldExpression>
            </textField>
        </band>
    </columnHeader>
    <detail>
        <band height="20" splitType="Stretch">
            <printWhenExpression><![CDATA[!$F{orw}.isEmpty()]]></printWhenExpression>
            <textField isStretchWithOverflow="true">
                <reportElement stretchType="ElementGroupHeight" x="50" y="0" width="150" height="20"/>
                <box leftPadding="10">
                    <topPen lineWidth="1.0"/>
                    <leftPen lineWidth="1.0"/>
                    <bottomPen lineWidth="1.0"/>
                    <rightPen lineWidth="1.0"/>
                </box>
                <textElement textAlignment="Center" verticalAlignment="Middle"/>
                <textFieldExpression><![CDATA[$F{name}.equals($P{pln}) ? $F{name} : $P{pln} + "\n" + $F{name}]]></textFieldExpression>
            </textField>
            <componentElement>
                <reportElement x="200" y="0" width="300" height="20" stretchType="ElementGroupHeight"/>
                <jr:list xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd" printOrder="Vertical">
                    <datasetRun subDataset="dataset1">
                        <dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($F{orw})]]></dataSourceExpression>
                    </datasetRun>
                    <jr:listContents height="20" width="300">
                            <textField isStretchWithOverflow="true">
                                <reportElement  x="0" y="0" width="150" height="20" stretchType="ElementGroupHeight"/>
                                <box leftPadding="10">
                                    <topPen lineWidth="1.0"/>
                                    <leftPen lineWidth="1.0"/>
                                    <bottomPen lineWidth="1.0"/>
                                    <rightPen lineWidth="1.0"/>
                                </box>
                                <textElement textAlignment="Center" verticalAlignment="Middle" />
                                <textFieldExpression><![CDATA[$F{name}]]></textFieldExpression>
                            </textField>
                            <textField isStretchWithOverflow="true">
                                <reportElement  x="150" y="0" width="150" height="20" stretchType="ElementGroupHeight"/>
                                <box leftPadding="10">
                                    <topPen lineWidth="1.0"/>
                                    <leftPen lineWidth="1.0"/>
                                    <bottomPen lineWidth="1.0"/>
                                    <rightPen lineWidth="1.0"/>
                                </box>
                                <textElement textAlignment="Center" verticalAlignment="Middle" />
                                <textFieldExpression><![CDATA[$F{state} == null ? "unkn : $F{state}]]></textFieldExpression>
                            </textField>
                    </jr:listContents>
                </jr:list>
            </componentElement>
        </band>
    </detail>
</jasperReport>

I've tried different ways to fix it but it seems like text element in bundle ignores list total height and can stretch above it, though if list height is more it gonna stretch.

I would be pleased if anyone could help me with my question